'embeded/raspberry pi'에 해당되는 글 445건

  1. 2024.02.26 rpi 콘솔 옮기기
  2. 2024.02.26 rpi libcamera?
  3. 2024.02.21 3d 프린트 한 라즈베리 케이스
  4. 2024.01.02 mariadb 라즈베리 파이 설정값
  5. 2023.10.31 MCP2515 on rpi
  6. 2023.09.23 서보 pan/tilt 조립
  7. 2023.09.19 서보 팬틸트 브라켓 구매
  8. 2023.09.19 DHT22 도착!
  9. 2023.09.19 bmp280 HW-611
  10. 2023.07.24 라즈베리 파이 openOCD jtag?
embeded/raspberry pi2024. 2. 26. 17:46

라즈베리 설치할 때 cli로 설치하고

ultranav 꽃고 커서를 누르려다 이전/다음 페이지 눌렸는데 가상 터미널을 이동한다.

alt-shift-f1 ~ f10을 눌러서 사용했었는데, 원래 있던 기능인가?

 

[링크 : https://raspberrypi.stackexchange.com/questions/36099/open-tty1-with-another-shortcut]

 

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Posted by 구차니
embeded/raspberry pi2024. 2. 26. 17:38

raspi-still이 deprecated 였다면.. raspivid도 그렇게 되었을 텐데

Re: pi Camera not supported

Tue Dec 05, 2023 1:40 pm
raspi-still is a deprecated application and does not work with libcamera. Use the libcamera applications.

What OS, what Pi are you using? Have you re-seated all the camera connectors in case one has come loose?

[링크 : https://forums.raspberrypi.com/viewtopic.php?t=360897]

 

그나저나 libcamera는 또 머냐..

csi는 libcamera로 지원되지 않는건가?

pi@raspberrypi:~ $ vcgencmd get_camera
supported=1 detected=1, libcamera interfaces=0

pi@raspberrypi:~ $ libcamera-still --list-cameras
No cameras available!

 

 

그래서 raspi-config에서 아래 처럼 사라질수 있다 라고 기재한건가?

 

 

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Posted by 구차니
embeded/raspberry pi2024. 2. 21. 23:37

슬림해서 이쁜데

방열판 있으면 안되는 크기란 걸 간과했다...

그래서 라즈베리 2에만 장착하기로 결정!

 

흰색은 잘 녹는지 크게 눈에 거슬리지 않는데, 빨간색은 곳곳에 구멍이 빈다.

 

높이 방향으로는 의외로 깔끔하게 잘 뽑는다.

 

빨간색과 흰색으로 두개 뽑아서 바꿔주니 투 톤이라 좀 더 이뻐 보이는 효과가!

이제 남은건.. 저 망할(?) FFC와 카메라 케이스 ㅋㅋ

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Posted by 구차니
embeded/raspberry pi2024. 1. 2. 22:44

편의를 위해 줄 끝을 삭제함(너무 길이서)

대충봐도.. 라즈베리용 메모리 크기에 맞게 설정되지 않은 느낌이다.

 

MariaDB [(none)]> show variables;
+----------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
 Variable_name                                             Value
+----------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
 alter_algorithm                                           DEFAULT
 analyze_sample_percentage                                 100.000000
 aria_block_size                                           8192
 aria_checkpoint_interval                                  30
 aria_checkpoint_log_activity                              1048576
 aria_encrypt_tables                                       OFF
 aria_force_start_after_recovery_failures                  0
 aria_group_commit                                         none
 aria_group_commit_interval                                0
 aria_log_dir_path                                         /var/lib/mysql/
 aria_log_file_size                                        1073741824
 aria_log_purge_type                                       immediate
 aria_max_sort_file_size                                   9223372036853727232
 aria_page_checksum                                        ON
 aria_pagecache_age_threshold                              300
 aria_pagecache_buffer_size                                134217728
 aria_pagecache_division_limit                             100
 aria_pagecache_file_hash_size                             512
 aria_recover_options                                      BACKUP,QUICK
 aria_repair_threads                                       1
 aria_sort_buffer_size                                     268434432
 aria_stats_method                                         nulls_unequal
 aria_sync_log_dir                                         NEWFILE
 aria_used_for_temp_tables                                 ON
 auto_increment_increment                                  1
 auto_increment_offset                                     1
 autocommit                                                ON
 automatic_sp_privileges                                   ON
 back_log                                                  80
 basedir                                                   /usr
 big_tables                                                OFF
 bind_address                                              127.0.0.1
 binlog_annotate_row_events                                ON
 binlog_cache_size                                         32768
 binlog_checksum                                           CRC32
 binlog_commit_wait_count                                  0
 binlog_commit_wait_usec                                   100000
 binlog_direct_non_transactional_updates                   OFF
 binlog_file_cache_size                                    16384
 binlog_format                                             MIXED
 binlog_optimize_thread_scheduling                         ON
 binlog_row_image                                          FULL
 binlog_row_metadata                                       NO_LOG
 binlog_stmt_cache_size                                    32768
 bulk_insert_buffer_size                                   8388608
 character_set_client                                      utf8
 character_set_connection                                  utf8
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 character_set_filesystem                                  binary
 character_set_results                                     utf8
 character_set_server                                      utf8mb4
 character_set_system                                      utf8
 character_sets_dir                                        /usr/share/mysql/charsets/
 check_constraint_checks                                   ON
 collation_connection                                      utf8_general_ci
 collation_database                                        utf8mb4_general_ci
 collation_server                                          utf8mb4_general_ci
 column_compression_threshold                              100
 column_compression_zlib_level                             6
 column_compression_zlib_strategy                          DEFAULT_STRATEGY
 column_compression_zlib_wrap                              OFF
 completion_type                                           NO_CHAIN
 concurrent_insert                                         AUTO
 connect_timeout                                           10
 core_file                                                 OFF
 datadir                                                   /var/lib/mysql/
 date_format                                               %Y-%m-%d
 datetime_format                                           %Y-%m-%d %H:%i:%s
 deadlock_search_depth_long                                15
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 deadlock_timeout_long                                     50000000
 deadlock_timeout_short                                    10000
 debug_no_thread_alarm                                     OFF
 default_master_connection
 default_password_lifetime                                 0
 default_regex_flags
 default_storage_engine                                    InnoDB
 default_tmp_storage_engine
 default_week_format                                       0
 delay_key_write                                           ON
 delayed_insert_limit                                      100
 delayed_insert_timeout                                    300
 delayed_queue_size                                        1000
 disconnect_on_expired_password                            OFF
 div_precision_increment                                   4
 encrypt_binlog                                            OFF
 encrypt_tmp_disk_tables                                   OFF
 encrypt_tmp_files                                         OFF
 enforce_storage_engine
 eq_range_index_dive_limit                                 200
 error_count                                               0
 event_scheduler                                           OFF
 expensive_subquery_limit                                  100
 expire_logs_days                                          10
 explicit_defaults_for_timestamp                           OFF
 external_user
 extra_max_connections                                     1
 extra_port                                                0
 flush                                                     OFF
 flush_time                                                0
 foreign_key_checks                                        ON
 ft_boolean_syntax                                         + -><()~*:""&
 ft_max_word_len                                           84
 ft_min_word_len                                           4
 ft_query_expansion_limit                                  20
 ft_stopword_file                                          (built-in)
 general_log                                               OFF
 general_log_file                                          raspberrypi.log
 group_concat_max_len                                      1048576
 gtid_binlog_pos
 gtid_binlog_state
 gtid_cleanup_batch_size                                   64
 gtid_current_pos
 gtid_domain_id                                            0
 gtid_ignore_duplicates                                    OFF
 gtid_pos_auto_engines
 gtid_seq_no                                               0
 gtid_slave_pos
 gtid_strict_mode                                          OFF
 have_compress                                             YES
 have_crypt                                                YES
 have_dynamic_loading                                      YES
 have_geometry                                             YES
 have_openssl                                              YES
 have_profiling                                            YES
 have_query_cache                                          YES
 have_rtree_keys                                           YES
 have_ssl                                                  DISABLED
 have_symlink                                              YES
 histogram_size                                            254
 histogram_type                                            DOUBLE_PREC_HB
 host_cache_size                                           279
 hostname                                                  raspberrypi
 identity                                                  0
 idle_readonly_transaction_timeout                         0
 idle_transaction_timeout                                  0
 idle_write_transaction_timeout                            0
 ignore_builtin_innodb                                     OFF
 ignore_db_dirs
 in_predicate_conversion_threshold                         1000
 in_transaction                                            0
 init_connect
 init_file
 init_slave
 innodb_adaptive_flushing                                  ON
 innodb_adaptive_flushing_lwm                              10.000000
 innodb_adaptive_hash_index                                OFF
 innodb_adaptive_hash_index_parts                          8
 innodb_adaptive_max_sleep_delay                           0
 innodb_autoextend_increment                               64
 innodb_autoinc_lock_mode                                  1
 innodb_background_scrub_data_check_interval               0
 innodb_background_scrub_data_compressed                   OFF
 innodb_background_scrub_data_interval                     0
 innodb_background_scrub_data_uncompressed                 OFF
 innodb_buf_dump_status_frequency                          0
 innodb_buffer_pool_chunk_size                             134217728
 innodb_buffer_pool_dump_at_shutdown                       ON
 innodb_buffer_pool_dump_now                               OFF
 innodb_buffer_pool_dump_pct                               25
 innodb_buffer_pool_filename                               ib_buffer_pool
 innodb_buffer_pool_instances                              1
 innodb_buffer_pool_load_abort                             OFF
 innodb_buffer_pool_load_at_startup                        ON
 innodb_buffer_pool_load_now                               OFF
 innodb_buffer_pool_size                                   134217728
 innodb_change_buffer_max_size                             25
 innodb_change_buffering                                   none
 innodb_checksum_algorithm                                 full_crc32
 innodb_cmp_per_index_enabled                              OFF
 innodb_commit_concurrency                                 0
 innodb_compression_algorithm                              zlib
 innodb_compression_default                                OFF
 innodb_compression_failure_threshold_pct                  5
 innodb_compression_level                                  6
 innodb_compression_pad_pct_max                            50
 innodb_concurrency_tickets                                0
 innodb_data_file_path                                     ibdata1:12M:autoextend
 innodb_data_home_dir
 innodb_deadlock_detect                                    ON
 innodb_default_encryption_key_id                          1
 innodb_default_row_format                                 dynamic
 innodb_defragment                                         OFF
 innodb_defragment_fill_factor                             0.900000
 innodb_defragment_fill_factor_n_recs                      20
 innodb_defragment_frequency                               40
 innodb_defragment_n_pages                                 7
 innodb_defragment_stats_accuracy                          0
 innodb_disable_sort_file_cache                            OFF
 innodb_doublewrite                                        ON
 innodb_encrypt_log                                        OFF
 innodb_encrypt_tables                                     OFF
 innodb_encrypt_temporary_tables                           OFF
 innodb_encryption_rotate_key_age                          1
 innodb_encryption_rotation_iops                           100
 innodb_encryption_threads                                 0
 innodb_fast_shutdown                                      1
 innodb_fatal_semaphore_wait_threshold                     600
 innodb_file_format
 innodb_file_per_table                                     ON
 innodb_fill_factor                                        100
 innodb_flush_log_at_timeout                               1
 innodb_flush_log_at_trx_commit                            1
 innodb_flush_method                                       fsync
 innodb_flush_neighbors                                    1
 innodb_flush_sync                                         ON
 innodb_flushing_avg_loops                                 30
 innodb_force_load_corrupted                               OFF
 innodb_force_primary_key                                  OFF
 innodb_force_recovery                                     0
 innodb_ft_aux_table
 innodb_ft_cache_size                                      8000000
 innodb_ft_enable_diag_print                               OFF
 innodb_ft_enable_stopword                                 ON
 innodb_ft_max_token_size                                  84
 innodb_ft_min_token_size                                  3
 innodb_ft_num_word_optimize                               2000
 innodb_ft_result_cache_limit                              2000000000
 innodb_ft_server_stopword_table
 innodb_ft_sort_pll_degree                                 2
 innodb_ft_total_cache_size                                640000000
 innodb_ft_user_stopword_table
 innodb_immediate_scrub_data_uncompressed                  OFF
 innodb_instant_alter_column_allowed                       add_drop_reorder
 innodb_io_capacity                                        200
 innodb_io_capacity_max                                    2000
 innodb_large_prefix
 innodb_lock_schedule_algorithm                            fcfs
 innodb_lock_wait_timeout                                  50
 innodb_log_buffer_size                                    16777216
 innodb_log_checksums                                      ON
 innodb_log_compressed_pages                               ON
 innodb_log_file_size                                      100663296
 innodb_log_files_in_group                                 1
 innodb_log_group_home_dir                                 ./
 innodb_log_optimize_ddl                                   OFF
 innodb_log_write_ahead_size                               8192
 innodb_lru_flush_size                                     32
 innodb_lru_scan_depth                                     1536
 innodb_max_dirty_pages_pct                                90.000000
 innodb_max_dirty_pages_pct_lwm                            0.000000
 innodb_max_purge_lag                                      0
 innodb_max_purge_lag_delay                                0
 innodb_max_purge_lag_wait                                 4294967295
 innodb_max_undo_log_size                                  10485760
 innodb_monitor_disable
 innodb_monitor_enable
 innodb_monitor_reset
 innodb_monitor_reset_all
 innodb_old_blocks_pct                                     37
 innodb_old_blocks_time                                    1000
 innodb_online_alter_log_max_size                          134217728
 innodb_open_files                                         2000
 innodb_optimize_fulltext_only                             OFF
 innodb_page_cleaners                                      1
 innodb_page_size                                          16384
 innodb_prefix_index_cluster_optimization                  OFF
 innodb_print_all_deadlocks                                OFF
 innodb_purge_batch_size                                   300
 innodb_purge_rseg_truncate_frequency                      128
 innodb_purge_threads                                      4
 innodb_random_read_ahead                                  OFF
 innodb_read_ahead_threshold                               56
 innodb_read_io_threads                                    4
 innodb_read_only                                          OFF
 innodb_replication_delay                                  0
 innodb_rollback_on_timeout                                OFF
 innodb_scrub_log                                          OFF
 innodb_scrub_log_speed                                    256
 innodb_sort_buffer_size                                   1048576
 innodb_spin_wait_delay                                    4
 innodb_stats_auto_recalc                                  ON
 innodb_stats_include_delete_marked                        OFF
 innodb_stats_method                                       nulls_equal
 innodb_stats_modified_counter                             0
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 innodb_stats_persistent                                   ON
 innodb_stats_persistent_sample_pages                      20
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 innodb_temp_data_file_path                                ibtmp1:12M:autoextend
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 innodb_version                                            10.5.21
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 last_gtid
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 lc_messages                                               en_US
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 license                                                   GPL
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 log_bin_basename
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 log_bin_index
 log_bin_trust_function_creators                           OFF
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 log_error
 log_output                                                FILE
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 log_slave_updates                                         OFF
 log_slow_admin_statements                                 ON
 log_slow_disabled_statements                              sp
 log_slow_filter                                           admin,filesort,filesort_on_disk,filesort_priority_queue,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk
 log_slow_rate_limit                                       1
 log_slow_slave_statements                                 ON
 log_slow_verbosity
 log_tc_size                                               24576
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 low_priority_updates                                      OFF
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 lower_case_table_names                                    0
 master_verify_checksum                                    OFF
 max_allowed_packet                                        16777216
 max_binlog_cache_size                                     4294963200
 max_binlog_size                                           1073741824
 max_binlog_stmt_cache_size                                4294963200
 max_connect_errors                                        100
 max_connections                                           151
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 max_digest_length                                         1024
 max_error_count                                           64
 max_heap_table_size                                       16777216
 max_insert_delayed_threads                                20
 max_join_size                                             18446744073709551615
 max_length_for_sort_data                                  1024
 max_password_errors                                       4294967295
 max_prepared_stmt_count                                   16382
 max_recursive_iterations                                  4294967295
 max_relay_log_size                                        1073741824
 max_rowid_filter_size                                     131072
 max_seeks_for_key                                         4294967295
 max_session_mem_used                                      9223372036854775807
 max_sort_length                                           1024
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 max_statement_time                                        0.000000
 max_tmp_tables                                            32
 max_user_connections                                      0
 max_write_lock_count                                      4294967295
 metadata_locks_cache_size                                 1024
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 min_examined_row_limit                                    0
 mrr_buffer_size                                           262144
 myisam_block_size                                         1024
 myisam_data_pointer_size                                  6
 myisam_max_sort_file_size                                 2146435072
 myisam_mmap_size                                          4294967295
 myisam_recover_options                                    BACKUP,QUICK
 myisam_repair_threads                                     1
 myisam_sort_buffer_size                                   134216704
 myisam_stats_method                                       NULLS_UNEQUAL
 myisam_use_mmap                                           OFF
 mysql56_temporal_format                                   ON
 net_buffer_length                                         16384
 net_read_timeout                                          30
 net_retry_count                                           10
 net_write_timeout                                         60
 old                                                       OFF
 old_alter_table                                           DEFAULT
 old_mode
 old_passwords                                             OFF
 open_files_limit                                          32186
 optimizer_max_sel_arg_weight                              32000
 optimizer_prune_level                                     1
 optimizer_search_depth                                    62
 optimizer_selectivity_sampling_limit                      100
 optimizer_switch                                          index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on,not_null_range_scan=off
 optimizer_trace                                           enabled=off
 optimizer_trace_max_mem_size                              1048576
 optimizer_use_condition_selectivity                       4
 performance_schema                                        OFF
 performance_schema_accounts_size                          -1
 performance_schema_digests_size                           -1
 performance_schema_events_stages_history_long_size        -1
 performance_schema_events_stages_history_size             -1
 performance_schema_events_statements_history_long_size    -1
 performance_schema_events_statements_history_size         -1
 performance_schema_events_transactions_history_long_size  -1
 performance_schema_events_transactions_history_size       -1
 performance_schema_events_waits_history_long_size         -1
 performance_schema_events_waits_history_size              -1
 performance_schema_hosts_size                             -1
 performance_schema_max_cond_classes                       90
 performance_schema_max_cond_instances                     -1
 performance_schema_max_digest_length                      1024
 performance_schema_max_file_classes                       80
 performance_schema_max_file_handles                       32768
 performance_schema_max_file_instances                     -1
 performance_schema_max_index_stat                         -1
 performance_schema_max_memory_classes                     320
 performance_schema_max_metadata_locks                     -1
 performance_schema_max_mutex_classes                      210
 performance_schema_max_mutex_instances                    -1
 performance_schema_max_prepared_statements_instances      -1
 performance_schema_max_program_instances                  -1
 performance_schema_max_rwlock_classes                     50
 performance_schema_max_rwlock_instances                   -1
 performance_schema_max_socket_classes                     10
 performance_schema_max_socket_instances                   -1
 performance_schema_max_sql_text_length                    1024
 performance_schema_max_stage_classes                      160
 performance_schema_max_statement_classes                  222
 performance_schema_max_statement_stack                    10
 performance_schema_max_table_handles                      -1
 performance_schema_max_table_instances                    -1
 performance_schema_max_table_lock_stat                    -1
 performance_schema_max_thread_classes                     50
 performance_schema_max_thread_instances                   -1
 performance_schema_session_connect_attrs_size             -1
 performance_schema_setup_actors_size                      -1
 performance_schema_setup_objects_size                     -1
 performance_schema_users_size                             -1
 pid_file                                                  /run/mysqld/mysqld.pid
 plugin_dir                                                /usr/lib/mysql/plugin/
 plugin_maturity                                           gamma
 port                                                      3306
 preload_buffer_size                                       32768
 profiling                                                 OFF
 profiling_history_size                                    15
 progress_report_time                                      5
 protocol_version                                          10
 proxy_protocol_networks
 proxy_user
 pseudo_slave_mode                                         OFF
 pseudo_thread_id                                          32
 query_alloc_block_size                                    16384
 query_cache_limit                                         1048576
 query_cache_min_res_unit                                  4096
 query_cache_size                                          1048576
 query_cache_strip_comments                                OFF
 query_cache_type                                          OFF
 query_cache_wlock_invalidate                              OFF
 query_prealloc_size                                       24576
 rand_seed1                                                1024636563
 rand_seed2                                                606536313
 range_alloc_block_size                                    4096
 read_binlog_speed_limit                                   0
 read_buffer_size                                          131072
 read_only                                                 OFF
 read_rnd_buffer_size                                      262144
 relay_log
 relay_log_basename
 relay_log_index
 relay_log_info_file                                       relay-log.info
 relay_log_purge                                           ON
 relay_log_recovery                                        OFF
 relay_log_space_limit                                     0
 replicate_annotate_row_events                             ON
 replicate_do_db
 replicate_do_table
 replicate_events_marked_for_skip                          REPLICATE
 replicate_ignore_db
 replicate_ignore_table
 replicate_wild_do_table
 replicate_wild_ignore_table
 report_host
 report_password
 report_port                                               3306
 report_user
 require_secure_transport                                  OFF
 rowid_merge_buff_size                                     8388608
 rpl_semi_sync_master_enabled                              OFF
 rpl_semi_sync_master_timeout                              10000
 rpl_semi_sync_master_trace_level                          32
 rpl_semi_sync_master_wait_no_slave                        ON
 rpl_semi_sync_master_wait_point                           AFTER_COMMIT
 rpl_semi_sync_slave_delay_master                          OFF
 rpl_semi_sync_slave_enabled                               OFF
 rpl_semi_sync_slave_kill_conn_timeout                     5
 rpl_semi_sync_slave_trace_level                           32
 secure_auth                                               ON
 secure_file_priv
 secure_timestamp                                          NO
 server_id                                                 1
 session_track_schema                                      ON
 session_track_state_change                                OFF
 session_track_system_variables                            autocommit,character_set_client,character_set_connection,character_set_results,time_zone
 session_track_transaction_info                            OFF
 skip_external_locking                                     ON
 skip_name_resolve                                         OFF
 skip_networking                                           OFF
 skip_parallel_replication                                 OFF
 skip_replication                                          OFF
 skip_show_database                                        OFF
 slave_compressed_protocol                                 OFF
 slave_ddl_exec_mode                                       IDEMPOTENT
 slave_domain_parallel_threads                             0
 slave_exec_mode                                           STRICT
 slave_load_tmpdir                                         /tmp
 slave_max_allowed_packet                                  1073741824
 slave_net_timeout                                         60
 slave_parallel_max_queued                                 131072
 slave_parallel_mode                                       optimistic
 slave_parallel_threads                                    0
 slave_parallel_workers                                    0
 slave_run_triggers_for_rbr                                NO
 slave_skip_errors                                         OFF
 slave_sql_verify_checksum                                 ON
 slave_transaction_retries                                 10
 slave_transaction_retry_errors                            1158,1159,1160,1161,1205,1213,1429,2013,12701
 slave_transaction_retry_interval                          0
 slave_type_conversions
 slow_launch_time                                          2
 slow_query_log                                            OFF
 slow_query_log_file                                       raspberrypi-slow.log
 socket                                                    /run/mysqld/mysqld.sock
 sort_buffer_size                                          2097152
 sql_auto_is_null                                          OFF
 sql_big_selects                                           ON
 sql_buffer_result                                         OFF
 sql_if_exists                                             OFF
 sql_log_bin                                               ON
 sql_log_off                                               OFF
 sql_mode                                                  STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
 sql_notes                                                 ON
 sql_quote_show_create                                     ON
 sql_safe_updates                                          OFF
 sql_select_limit                                          18446744073709551615
 sql_slave_skip_counter                                    0
 sql_warnings                                              OFF
 ssl_ca
 ssl_capath
 ssl_cert
 ssl_cipher
 ssl_crl
 ssl_crlpath
 ssl_key
 standard_compliant_cte                                    ON
 storage_engine                                            InnoDB
 stored_program_cache                                      256
 strict_password_validation                                ON
 sync_binlog                                               0
 sync_frm                                                  ON
 sync_master_info                                          10000
 sync_relay_log                                            10000
 sync_relay_log_info                                       10000
 system_time_zone                                          KST
 system_versioning_alter_history                           ERROR
 system_versioning_asof                                    DEFAULT
 table_definition_cache                                    400
 table_open_cache                                          2000
 table_open_cache_instances                                8
 tcp_keepalive_interval                                    0
 tcp_keepalive_probes                                      0
 tcp_keepalive_time                                        0
 tcp_nodelay                                               ON
 thread_cache_size                                         151
 thread_handling                                           one-thread-per-connection
 thread_pool_dedicated_listener                            OFF
 thread_pool_exact_stats                                   OFF
 thread_pool_idle_timeout                                  60
 thread_pool_max_threads                                   65536
 thread_pool_oversubscribe                                 3
 thread_pool_prio_kickup_timer                             1000
 thread_pool_priority                                      auto
 thread_pool_size                                          4
 thread_pool_stall_limit                                   500
 thread_stack                                              299008
 time_format                                               %H:%i:%s
 time_zone                                                 SYSTEM
 timestamp                                                 1704202334.478383
 tls_version                                               TLSv1.1,TLSv1.2,TLSv1.3
 tmp_disk_table_size                                       4294967295
 tmp_memory_table_size                                     16777216
 tmp_table_size                                            16777216
 tmpdir                                                    /tmp
 transaction_alloc_block_size                              8192
 transaction_prealloc_size                                 4096
 tx_isolation                                              REPEATABLE-READ
 tx_read_only                                              OFF
 unique_checks                                             ON
 updatable_views_with_limit                                YES
 use_stat_tables                                           PREFERABLY_FOR_QUERIES
 userstat                                                  OFF
 version                                                   10.5.21-MariaDB-0+deb11u1
 version_comment                                           Raspbian 11
 version_compile_machine                                   armv7l
 version_compile_os                                        debian-linux-gnueabihf
 version_malloc_library                                    system
 version_source_revision                                   bed70468ea08c2820647f5e3ac006a9ff88144ac
 version_ssl_library                                       OpenSSL 1.1.1w  11 Sep 2023
 wait_timeout                                              28800
 warning_count                                             0
 wsrep_osu_method                                          TOI
 wsrep_sr_store                                            table
 wsrep_auto_increment_control                              ON
 wsrep_causal_reads                                        OFF
 wsrep_certification_rules                                 strict
 wsrep_certify_nonpk                                       ON
 wsrep_cluster_address
 wsrep_cluster_name                                        my_wsrep_cluster
 wsrep_convert_lock_to_trx                                 OFF
 wsrep_data_home_dir                                       /var/lib/mysql/
 wsrep_dbug_option
 wsrep_debug                                               NONE
 wsrep_desync                                              OFF
 wsrep_dirty_reads                                         OFF
 wsrep_drupal_282555_workaround                            OFF
 wsrep_forced_binlog_format                                NONE
 wsrep_gtid_domain_id                                      0
 wsrep_gtid_mode                                           OFF
 wsrep_gtid_seq_no                                         0
 wsrep_ignore_apply_errors                                 7
 wsrep_load_data_splitting                                 OFF
 wsrep_log_conflicts                                       OFF
 wsrep_max_ws_rows                                         0
 wsrep_max_ws_size                                         2147483647
 wsrep_mysql_replication_bundle                            0
 wsrep_node_address
 wsrep_node_incoming_address                               AUTO
 wsrep_node_name                                           raspberrypi
 wsrep_notify_cmd
 wsrep_on                                                  OFF
 wsrep_patch_version                                       wsrep_26.22
 wsrep_provider                                            none
 wsrep_provider_options
 wsrep_recover                                             OFF
 wsrep_reject_queries                                      NONE
 wsrep_replicate_myisam                                    OFF
 wsrep_restart_slave                                       OFF
 wsrep_retry_autocommit                                    1
 wsrep_slave_fk_checks                                     ON
 wsrep_slave_uk_checks                                     OFF
 wsrep_slave_threads                                       1
 wsrep_sst_auth
 wsrep_sst_donor
 wsrep_sst_donor_rejects_queries                           OFF
 wsrep_sst_method                                          rsync
 wsrep_sst_receive_address                                 AUTO
 wsrep_start_position                                      00000000-0000-0000-0000-000000000000:-1
 wsrep_strict_ddl                                          OFF
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 wsrep_trx_fragment_unit                                   bytes
+----------------------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
667 rows in set (0.039 sec)

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embeded/raspberry pi2023. 10. 31. 23:05

MCP2515를 라즈베리에서 쓰려면 개조가 필요하다는데

아두이노가 5V IO 레벨이고 라즈베리가 3.3V 레벨이라 그런가? 왜 저렇게 복잡하게 개조하는건진 찾아봐야겠고

집에 16MHz OSC가 있나도 찾아봐야겠다.(12MHz 24MHz는 있는데 16MHz 만 없네 -_-)

[링크 : https://blog.naver.com/mts90/221644429413]

 

반대로 SPI 를 위한 레벨시프터가 있으면 해결되려나?

[링크 : https://www.devicemart.co.kr/goods/view?no=1384307] 2채널 3.3V<->5V 레벨 시프터 / 1000원

 

구매시 16MHz 인지 확인하는것도 방법이려나

[링크 : https://m.blog.naver.com/kimhj9/221790064284]

 

트랜시버의 전압을 바꾸어 주는거라면 라즈베리 끼리 테스트 할때 그냥 3.3V 넣어서

양쪽다 동일 전압레벨로 맞추면 통신이 안되려나?

 

설정 내용을 보니 spi를 통해서 can 통신 장치 추가 까지 문제 없어 보인다.

$ vi /boot/config.txt
dtoverlay=mcp2515-can0,oscillator=8000000,interrupt=12
dtoverlay=spi-bcm2835-overlay

$ sudo apt-get install can-utils

$ ls /sys/bus/spi/devices/spi0.0/net
can0

$ ls /sys/bus/spi/devices/spi0.0
driver  modalias  net  of_node  subsystem  uevent

$ ls /sys/bus/spi/devices/spi0.0/net/
can0

$ ls /sys/bus/spi/devices/spi0.0/net/can0/
addr_assign_type  carrier_changes  duplex             iflink            operstate       speed         uevent
address           device           flags              link_mode         phys_port_id    statistics
addr_len          dev_id           gro_flush_timeout  mtu               phys_port_name  subsystem
broadcast         dev_port         ifalias            name_assign_type  phys_switch_id  tx_queue_len
carrier           dormant          ifindex            netdev_group      queues          type

// 5. Setup CAN interface, I use 125k baudrate.
$ sudo ip link set can0 up type can bitrate 125000
$ sudo ifconfig
can0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
          UP RUNNING NOARP  MTU:16  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:10
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

[링크 : https://forums.raspberrypi.com/viewtopic.php?t=141052]

 

TJA1050 - High speed CAN tranceiver

[링크 : https://www.nxp.com/docs/en/data-sheet/TJA1050.pdf]

 

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embeded/raspberry pi2023. 9. 23. 23:18

저번에 구매했던 브라켓을 이용해서 대충대충 만들었는데, 드럽게 부피를 많이 먹는다.

 

나중에 라즈베리를 틸트 기구에 길~게 해서 위쪽으로 FFC/CSI 케이블 연결해주고

본체도 같이 pan(팬)으로 회전하도록 두개를 놔둬야 하나 고민된다.

라즈베리 하나에 한쪽 눈깔씩 해서 영상처리하면서 중앙으로 전송하는 구조로 가야하나..

눈깔만 해도 저만한 부피인데 목까지 만들려면 진짜 사람 머리 크기 되겠네 -_-

 

 

조립하고 나서 검색해보니 무언가 나오는데.. 이렇게 리얼한건 바란게 아니라고..

[링크 : https://circuitdigest.com/microcontroller-projects/diy-3d-printed-animatronic-eye-with-arduino]

 

ESP32에다가 이런거 비슷한거 달아서 쓰고 있긴한데..

FFC 케이블을 길게해서 팬을 해도 케이블에 무리가 적게 가게 하는 방향으로 해결하는 듯.

[링크 : https://makersportal.com/blog/2020/3/21/raspberry-pi-servo-panning-camera]

 

이건 USB 카메라 같네..

[링크 : https://www.electroniclinic.com/raspberry-pi-servo-motor-for-camera-controlling/]

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조립법이 없어서

결국에는 판매페이지 저장을 하게 되네 -_ㅠ

[링크 : http://itempage3.auction.co.kr/DetailView.aspx?ItemNo=B722540913]

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embeded/raspberry pi2023. 9. 19. 14:18

저장소 손보고

pi@raspberrypi:~/src $ sudo apt-get update
Get:1 http://archive.raspberrypi.org/debian bullseye InRelease [23.6 kB]
Get:2http://raspbian.raspberrypi.org/raspbian bullseye InRelease [15.0 kB]
Get:3 http://raspbian.raspberrypi.org/raspbian bullseye/main armhf Packages [13.2 MB]
Get:4 http://archive.raspberrypi.org/debian bullseye/main armhf Packages [314 kB]
Fetched 13.6 MB in 25s (534 kB/s)                                                                                                
Reading package lists... Done
N: Repository ' http://raspbian.raspberrypi.org/raspbian bullseye InRelease' changed its 'Suite' value from 'stable' to 'oldstable'

pi@raspberrypi:~/src $ sudo apt full-upgrade

[링크 : https://forums.raspberrypi.com/viewtopic.php?t=318302]

 

pip를 이용하여 패키지 설치하고

$ sudo apt-get install python3-pip

[링크 : https://foreverhappiness.tistory.com/67] // pip3가 아니다 ㅠㅠ

 

adafruit_dht 패키지 설치하고

sudo pip3 install Adafruit_DHT
Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting Adafruit_DHT
  Downloading Adafruit_DHT-1.4.0.tar.gz (15 kB)
Building wheels for collected packages: Adafruit-DHT
  Building wheel for Adafruit-DHT (setup.py) ... done
  Created wheel for Adafruit-DHT: filename=Adafruit_DHT-1.4.0-cp39-cp39-linux_armv7l.whl size=26725 sha256=6d328e4cac264d9807d07a3f20bbc7eb687bf002ae850b3dcfdae1d5fc4a9a64
  Stored in directory: /root/.cache/pip/wheels/2b/75/fa/27f8bc06878df2b751d348ad98e92361f78ea9f9640c7e6277
Successfully built Adafruit-DHT
Installing collected packages: Adafruit-DHT
Successfully installed Adafruit-DHT-1.4.0

 

소스는 adafruit 에서 만든걸 써서 별거 없는데

import Adafruit_DHT as dht
import time

while True:
    humidity, temperature = dht.read_retry(dht.DHT22, 4)
    print("Temp={0:0.1f}*C  Humidity={1:0.1f}%".format(temperature, humidity))   
time.sleep(1)

[링크 : https://kdjun97.github.io/iot/raspberry-pi-dht22/]

 

예상외로 읽는데 실패가 좀 많은지 의외로 빈번하게 4초 정도 걸리는 경우가 나온다.

pi@raspberrypi:~/src $ time python sen.py 
Temp=26.6*C  Humidity=55.6%
Temperature in Celsius : 26.74 C
Pressure : 1003.37 hPa

real 0m3.937s
user 0m0.370s
sys 0m0.060s

pi@raspberrypi:~/src $ time python sen.py 
Temp=26.6*C  Humidity=55.5%
Temperature in Celsius : 26.74 C
Pressure : 1003.42 hPa

real 0m1.415s
user 0m0.352s
sys 0m0.058s

 

python 에서 멀티 쓰레드로 해서 읽어오게 해야하나..

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embeded/raspberry pi2023. 9. 19. 12:02

코드가 python 2.x 용인것 같아서 3.x로 되도록 대충 바꾸었고,

import smbus 에서 에러가 나서 아래 패키지를 설치하면 해결된다.

$ sudo apt-get install python3-smbus

[링크 : https://forums.raspberrypi.com/viewtopic.php?t=192909]

 

BMP280 이지 BME280이 아니라 습도가 안되서 좀 아쉽..

$ cat bmp280.py 
# Distributed with a free-will license.
# Use it any way you want, profit or free, provided it fits in the licenses of its associated works.
# BMP280
# This code is designed to work with the BMP280_I2CS I2C Mini Module available from ControlEverything.com.
# https://www.controleverything.com/content/Barometer?sku=BMP280_I2CSs#tabs-0-product_tabset-2 
import smbus
import time

# Get I2C bus
bus = smbus.SMBus(1)

# BMP280 address, 0x76(118)
# Read data back from 0x88(136), 24 bytes
b1 = bus.read_i2c_block_data(0x76, 0x88, 24)

# Convert the data
# Temp coefficents
dig_T1 = b1[1] * 256 + b1[0]
dig_T2 = b1[3] * 256 + b1[2]
if dig_T2 > 32767 :
    dig_T2 -= 65536
dig_T3 = b1[5] * 256 + b1[4]
if dig_T3 > 32767 :
    dig_T3 -= 65536


# Pressure coefficents
dig_P1 = b1[7] * 256 + b1[6]
dig_P2 = b1[9] * 256 + b1[8]
if dig_P2 > 32767 :
    dig_P2 -= 65536
dig_P3 = b1[11] * 256 + b1[10]
if dig_P3 > 32767 :
    dig_P3 -= 65536
dig_P4 = b1[13] * 256 + b1[12]
if dig_P4 > 32767 :
    dig_P4 -= 65536
dig_P5 = b1[15] * 256 + b1[14]
if dig_P5 > 32767 :
    dig_P5 -= 65536
dig_P6 = b1[17] * 256 + b1[16]
if dig_P6 > 32767 :
    dig_P6 -= 65536
dig_P7 = b1[19] * 256 + b1[18]
if dig_P7 > 32767 :
    dig_P7 -= 65536
dig_P8 = b1[21] * 256 + b1[20]
if dig_P8 > 32767 :
    dig_P8 -= 65536
dig_P9 = b1[23] * 256 + b1[22]
if dig_P9 > 32767 :
    dig_P9 -= 65536


# BMP280 address, 0x76(118)
# Select Control measurement register, 0xF4(244)
# 0x27(39) Pressure and Temperature Oversampling rate = 1
# Normal mode
bus.write_byte_data(0x76, 0xF4, 0x27)
# BMP280 address, 0x76(118)
# Select Configuration register, 0xF5(245)
# 0xA0(00) Stand_by time = 1000 ms
bus.write_byte_data(0x76, 0xF5, 0xA0)

time.sleep(0.5)

# BMP280 address, 0x76(118)
# Read data back from 0xF7(247), 8 bytes
# Pressure MSB, Pressure LSB, Pressure xLSB, Temperature MSB, Temperature LSB
# Temperature xLSB, Humidity MSB, Humidity LSB
data = bus.read_i2c_block_data(0x76, 0xF7, 8)

# Convert pressure and temperature data to 19-bits
adc_p = ((data[0] * 65536) + (data[1] * 256) + (data[2] & 0xF0)) / 16
adc_t = ((data[3] * 65536) + (data[4] * 256) + (data[5] & 0xF0)) / 16

# Temperature offset calculations
var1 = ((adc_t) / 16384.0 - (dig_T1) / 1024.0) * (dig_T2)
var2 = (((adc_t) / 131072.0 - (dig_T1) / 8192.0) * ((adc_t)/131072.0 - (dig_T1)/8192.0)) * (dig_T3)
t_fine = (var1 + var2)
cTemp = (var1 + var2) / 5120.0
fTemp = cTemp * 1.8 + 32


# Pressure offset calculations
var1 = (t_fine / 2.0) - 64000.0
var2 = var1 * var1 * (dig_P6) / 32768.0
var2 = var2 + var1 * (dig_P5) * 2.0
var2 = (var2 / 4.0) + ((dig_P4) * 65536.0)
var1 = ((dig_P3) * var1 * var1 / 524288.0 + ( dig_P2) * var1) / 524288.0
var1 = (1.0 + var1 / 32768.0) * (dig_P1)
p = 1048576.0 - adc_p
p = (p - (var2 / 4096.0)) * 6250.0 / var1
var1 = (dig_P9) * p * p / 2147483648.0
var2 = p * (dig_P8) / 32768.0
pressure = (p + (var1 + var2 + (dig_P7)) / 16.0) / 100

# Output data to screen
print("Temperature in Celsius : %.2f C" %cTemp)
print("Temperature in Fahrenheit : %.2f F" %fTemp)
print("Pressure : %.2f hPa" %pressure)

[링크 : http://www.pibits.net/code/raspberry-pi-and-bmp280-sensor-example.php]

 

+

[링크 : https://cdn-shop.adafruit.com/datasheets/BST-BMP280-DS001-11.pdf]

 

내가 가진거. HW-611 이라고 써있고 칩은 별다른 마킹이 없는데

i2c 주소는 0x76 이니 맞는거 같긴한데 아닌것 같기도 하고 모르겠다 -ㅁ-

 

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embeded/raspberry pi2023. 7. 24. 10:52

openOCD(ftdi jtag) - rpi 3 jtag 연결

[링크 : https://ahyuo79.blogspot.com/2020/02/openocd-ftdi-jtag.html]

 

빠르다면 빠른 속도.

Part No: FT2232HQ
USB Hi-Speed to Dual Channel Serial UART/FIFO/JTAG/SPI/I2C IC, QFN-64
Hi-speed USB 2.0 Slave to Dual Channel UART / Serial Converter

 Data Rates: 12Mbaud (UART) up to 40MB/s (Sync FIFO)  USB Transfer Modes: Bulk  Interfaces: UART, FIFO, 2 x MPSSE, Fast serial, 8051 MCU emulation, 16 GPIOs  USB Host: No  Packages: 64-pin QFN  Channels: 2  I/O Voltage: 3.3V  USB Class: Vendor  Virtual Com Port: Yes  Operating Temperature: -40°C to +85°C
Standard Price (Easy checkout)
Order Quantity Price per Unit
1 - 9 : USD5.10
10 - 49 : USD4.90
50 - 99 : USD4.80
100 - 249 : USD4.70
250 - 499 : USD4.50
500 - 999 : USD4.25

Key Hardware Features
Single chip USB to dual serial / parallel ports with a variety of configurations.
Entire USB protocol handled on the chip. No USB specific firmware programming required.
USB 2.0 High Speed (480Mbits/second) and Full Speed (12Mbits/second) compatible.
Dual Multi-Protocol Synchronous Serial Engine (MPSSE) to simplify synchronous serial protocol (USB to JTAG, I2C, SPI or bit-bang) design.
Dual independent UART or FIFO ports configurable using MPSSEs.
Independent Baud rate generators.
RS232/RS422/RS485 UART Transfer Data Rate up to 12Mbaud. (RS232 Data Rate limited by external level shifter).
USB to parallel FIFO transfer data rate up to 10Mbyte/sec.
Single channel synchronous FIFO mode for transfers up to 40 Mbytes/sec.
CPU-style FIFO interface mode simplifies CPU interface design.
MCU host bus emulation mode configuration option.
Fast Opto-Isolated serial interface option.
FTDI’s royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers eliminate the requirement for USB driver development in most cases.
Adjustable receive buffer timeout.
Option for transmit and receive LED drive signals on each channel.
Enhanced bit-bang Mode interface option with RD# and WR# strobes.
FT245B-style FIFO interface option with bidirectional data bus and simple 4 wire handshake interface.
Highly integrated design includes +1.8V LDO regulator for VCORE, integrated POR function and on chip clock multiplier PLL (12MHz – 480MHz).
Asynchronous serial UART interface option with full hardware handshaking and modem interface signals.
Fully assisted hardware or X-On / X-Off software handshaking.
UART Interface supports 7/8 bit data, 1/2 stop bits, and Odd/Even/Mark/Space/No Parity.
Auto-transmit enable control for RS485 serial applications using TXDEN pin.
Operational configuration mode and USB Description strings configurable in external EEPROM over the USB interface.
Configurable I/O drive strength (4,8,12 or 16mA) and slew rate.
Low operating and USB suspend current.
Supports bus powered, self powered and high-power bus powered USB configurations.
UHCI/OHCI/EHCI host controller compatible.
USB Bulk data transfer mode (512 byte packets in Hi-Speed mode).
+1.8V (chip core) and +3.3V I/O interfacing (+5V Tolerant).
Extended -40°C to 85°C industrial operating temperature range.
Compact 64-LD Lead Free LQFP/LQFN package and 56-LD VQFN packages.
+3.3V single supply operating voltage range.

[링크 : https://ftdichip.com/products/ft2232hq/]

 

[링크 : https://ftdichip.com/software-examples/mpsse-projects/ftcjtag-examples/]

[링크 : https://ftdichip.com/software-examples/mpsse-projects/]

 

 

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