dfrobot ph meter

한동안 가지고 놀게 될(?) 부품

[링크 : https://www.dfrobot.com/wiki/index.php/PH_meter(SKU:_SEN0161)]

[링크 : https://www.dfrobot.com/wiki/index.php/Analog_pH_Meter_Pro_SKU:SEN0169]

[링크 : https://www.dfrobot.com/wiki/index.php/PH_meter_V1.1_SKU:SEN0161]

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Reads the value from the specified analog pin. The Arduino board contains a 6 channel (7 channels on MKR boards, 8 on the Mini and Nano, 16 on the Mega), 10-bit analog to digital converter. This means that it will map input voltages between 0 and 5 volts into integer values between 0 and 1023. This yields a resolution between readings of: 5 volts / 1024 units or, .0049 volts (4.9 mV) per unit. The input range and resolution can be changed using analogReference(). It takes about 100 microseconds (0.0001 s) to read an analog input, so the maximum reading rate is about 10,000 times a second.

[링크 : https://www.arduino.cc/reference/en/language/functions/analog-io/analogread/]

[링크 : https://www.arduino.cc/reference/en/language/functions/analog-io/analogreference/]

[링크 : https://forum.arduino.cc/index.php?topic=16585.0]

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회로도 및 부품 데이터시트

[링크 : http://image.dfrobot.com/image/data/SEN0161/pH%20meter%20V1.0%20SCH.pdf]

[링크 : http://ww1.microchip.com/downloads/en/DeviceDoc/20001358D.pdf]

[링크 : https://www.renesas.com/kr/en/www/doc/datasheet/ca3140-a.pdf]

[링크 : https://pdf1.alldatasheet.co.kr/datasheet-pdf/view/177131/TI/TL081BCDG4.html]