Battery Backpack for PiWars Badge

This is a backpack for the 2019 PiWars badge created by 4tronix that allows it to be powered off 2xAAA batteries mounted behind it rather than via the USB port, making it much nicer to hang around your neck.

**Parts needed:**
- Badge (https://shop.4tronix.co.uk/collections/4duino/products/piwars19-badge)
- Edge Connector (https://shop.4tronix.co.uk/collections/4duino/products/breakout-for-piwars-2019-competitor-badge)
- AAA Battery Holder (https://www.proto-pic.co.uk/2xaaa-battery-cage-with-jst-connector-for-bbc-microbit.html)
- 5V Boost Regulator (https://www.proto-pic.co.uk/pololu-5v-step-up-voltage-regulator-u3v12f5.html)
- Power Switch (https://www.proto-pic.co.uk/spdt-mini-power-switch.html)
- Red and black wire
- Head Shrink
- 2x AAA batteries

Thanks go out to Gareth at 4tronix for kindly sharing the board outline of the PiWars badge! Without that this design would have been so much harder to do.

**Video:** https://www.youtube.com/watch?v=Cjwtb13ZBzw

**Edit:**