Expansion Board 3.1 for WiPy IoT Development Platform [Discontinued] _RaspberryPi A coin cell is required

A coin cell is required to use the battery-backup capabilities

A 9V US-prong power adapter is included

1x 220-ohm Resistor

which works well in most applications but may be noticeable if the LEDs are moved quickly

You get full reign of the processor and timing

Expansion Board 3.1 for WiPy IoT Development Platform [Discontinued] _RaspberryPi A coin cell is requiredThis WiPy 3. 0 compatible Expansion Board v3. 1 brings additional functionality to your IoT project. Simply insert the WiPy 3. 0 into the headers and enjoy all the extra features! This is compatible with WiPy 2. 0, WiPy 3. 0, LoPy, LoPy4, SiPy, FiPy and GPy! Specifications: USB and LiPo battery powered Custom PIC USB to serial converter with automatic bootloader mode LiPo battery charger (BQ20), with options for two different charging currents (100mA