Me Touch Sensor is a capacitive touch sensor based on TTP223-BA6. It will be triggered by finger touch. You can also connect the "TOUCH" pinhole to some metal construction and touch the metal to trigger the sensor. The sensitivity is fixed to a proper level. If you need to adjust it to fit some special case, you can try to change the value of R3 and C4. It needs 0.5s for the self-calibration after energized. During that, please don't touch the sensor.
Contactless touch trigger
16mm interval M4 mounting holes, compatible with Makeblock beams
2.54mm pin holes for connecting with Dupont wire
Easy wiring with 6P6C RJ25 interface
Arduino library for easy programming
Rated Voltage: 5V
Size: 24 x 48 x 16 mm (length x width x height)