This is the RFduino Single AAA Battery Shield, a long add-on board for the RFduino DIP module that supplies 3.3V to your whole project. This shield can easily attach anywhere on your RFduino stack and will still be able to provide reliable power throughout each board.
The Single AAA Battery Shield is also equipped with a power switch and a step-up switching regulator which allows the 1.5V battery to be drained down to low voltages while still providing a stable 3.3V to your RFduino.
Note: AAA batteries are NOT included with this shield but can be found in the Recommended Products section below.
- Output Voltage: 3.3V
- Output Current: 40mA