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Carlos Neves pHduino


Photo: Carlos Neves

Shield URL: pHduino
Tags: sensor, aquarium, chemistry, hydroponic, ph
Maker: Carlos Neves

A pH meter shield for a combined glass electrode pH sensor.

PCB: Creative Commons 3.0.
Source code: GPLv2.

Open Source: Unknown
License: Unknown
Source: Unknown
AREF
GND
D13 / SCK
D12 / MISO
RESET D11 / MOSI ~
3.3V D10 / SS ~
5V D9 ~
GND D8
GND
VIN D7
D6 ~
A0D5 ~
A1D4
A2D3 ~
A3D2
A4D1 / TX
A5D0 / RX
Note:
A0: pH analog signal.
A1: voltage reference.
A2: temperature analog signal.
D2: control button.
D3: buzzer.
D6-D12: LCD.
D13: status LED.

Did I make a mistake? Tell me!