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en:phmet [2016/03/13 13:10] (current)
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 +====== pHmeter with multiple probes ​ ======
 +
 +{{:​cs:​designs:​img_20160303_025351.jpg?​400|}}
 +===== Software =====
 +
 +
 +[[https://​github.com/​ODZ-UJF-AV-CR/​pHmeter|Source code]]
 +===== Connection =====
 +
 +==== 5V ==
 +
 +''​+5V → ODROID C1/​4''​
 +
 +''​GND → ODROID C1/​6''​
 +
 +==== I2C ====
 +
 +Jumper SLAVE OUT.
 +Jumper MASTER OUT.
 +Hub I2C GND and VDD to ADC GND and VDD.
 +
 +''​ODROID C1/3 → I2CHOB02B/​SDA''​
 +
 +''​ODROID C1/5 → I2CHOB02B/​SCL''​
 +
 +''​I2CHOB02B/​1/​SDA → I2CADC01A/​SDA''​
 +
 +''​I2CHOB02B/​1/​SCL → I2CADC01A/​SCL''​
 +
 +==== ADC ====
 +
 +Power +5V to I2CADC01A and OZDUAL02B.
 +
 +Jumper REF- GND.
 +
 +''​I2CADC01A/​Vref → OZDUAL02B/​-in''​
 +
 +''​I2CADC01A/​REF+ → OZDUAL02B/​Vref''​
 +
 +''​I2CADC01A/​IN+ → OZDUAL02B/​out''​
 +
 +''​I2CADC01A/​IN- → OZDUAL02B/​-in''​
 +
 +''​OZDUAL02B/​Vref → pH probe -''​
 +
 +''​OZDUAL02B/​+in → pH probe +''​
 +
 +==== OA ====
 +
 +{{:​cs:​designs:​img_20160301_214420.jpg?​400|}}
 +
 +{{:​cs:​designs:​img-925133830.pdf|schematic of ADC}}
  
en/phmet.txt · Last modified: 2016/03/13 13:10 (external edit)