Capacitive Touch Num Pad Shield
This Capacitive Touch Num Pad Shield has 9 build-on capacitive touch sensor and 3 reserve electrodes. The total touch sensitive buttons is 12. The IC used is MPR121 which is communicates thru Inter-Integrated Circuit or I2C, making this easy to incorporate to your Arduino based projects. The on-board logic level converter makes it easy to work with either 3.3V or 5V Arduino boards. An LED is also built-in to show the power status. This shield uses less pins, making room to use other digital pins.
Initially the header pins are not soldered, making it more customizable for your projects.
- Build-in 9 keypad, 3 reserved pins for extended usage
- Built-in power status LED
- 12C Communications