Pmod CDC1: Capacitative Input Buttons

The Pmod CDC1 is a capacitative sensor that uses the Analog Devices AD7156. By communicating with the chip via I²C, users can set the Pmod for an adaptive capacitance threshold that changes with the environment or set static thresholds that only trigger when a certain capacitance is reached. 

Features:

• Two capacitive input channels
• Fixed or adaptive threshold capability
• High sensitivity up to 3 fF
• Small PCB size for flexible designs 2.3“ × 0.8” (5.8 cm × 2.0 cm)
• 2×4-pin connector with I2C interface
• Follows Digilent Pmod Interface Specification