arduino TTP226 8 Channel Digital Capacitive Switch Touch Sensor Module An onboard TTP226 capacitive touch sensor IC 8 keys. The module can set the output mode, the key output mode, the maximum output time and fast / low power selection. 1, onboard TTP226 8-key touch-sensitive capacitance IC 2, the onboard 8-channel level indicator 3, working voltage: 2.4V-5.5V 4, module, you can set the output mode, key, mode, maximum output time and fast/low power selection 5, PCB Board size: 47.5 (mm) x46 (mm) Shipping list: TTP226 x 8-way touch switch module one Package Included: 1 x arduino TTP226 8 Channel Digital Capacitive Switch Touch Sensor Module