Adafruit 12-Channel Capacitive Touch Shield for Arduino - MPR121 Jumper Wire 8Pin Dual-Female - 200mm 1 × pH Meter Pro

1 × pH Meter Pro Analog Sensor

The typical range in open space is between 50 and 100 meters

Coolant enable

Useful spec: Power

We have example C++ code for Arduino

Adafruit 12-Channel Capacitive Touch Shield for Arduino - MPR121 Jumper Wire 8Pin Dual-Female - 200mm 1 × pH Meter ProAdafruit 12 x Capacitive Touch Shield for Arduino MPR121 is an official Adafruit product available from Circuitrocks, an official distributor of Adafruit. A touch input shield that lets Arduino projects react to human touch using up to 12 capacitive touch electrodes. Why choose this Adafruit board or module? 12 touch channels on one shield Great for interactive art and musical interfaces Easy to clip onto conductive objects What you can build Fruit