서보 모터 2개 제어하려니.. PWM 채널 2개인게 편해서 검색..
그런데.. 저 핀 수는 어떤 기준이지?
12 PWM channel 0 A+/B+/Pi2 and compute module only 13 PWM channel 1 A+/B+/Pi2 and compute module only 18 PWM channel 0 All models 19 PWM channel 1 A+/B+/Pi2 and compute module only
40 PWM channel 0 Compute module only 41 PWM channel 1 Compute module only 45 PWM channel 1 Compute module only 52 PWM channel 0 Compute module only 53 PWM channel 1 Compute module only
[링크 : http://abyz.co.uk/rpi/pigpio/python.html#hardware_PWM] |
There are two hardware PWM channels on the BCM2385/6. PWM0, which can be set to use GPIOs 12, 18, 40, and 52. Only 12 (pin 32) and 18 (pin 12) are available on the B+/2B, and PWM1 which can be set to use GPIOs 13, 19, 41, 45 and 53. Only 13 is available on the B+/2B, on pin 35 (but I think PWM1 is used for something - is it the audio output?)
[링크 : https://www.raspberrypi.org/forums/viewtopic.php?f=91&t=105044] |
라즈베리 2B에는 GPIO13과 GPIO18번이 나와있으니.. 이걸 두개 설정해서
HW PWM으로 사용할 수 있을 것 같은데..

[링크 : http://elinux.org/RPi_BCM2835_GPIOs]

[링크 : http://elinux.org/RPi_Low-level_peripherals]
이렇게 맞붙여서 한번 해봐야지..

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