PCB designs

You will find the eagle files and the BOM on GitHub.

There are two versions of the BI1 board:

BI1Rev4: Early version of the board – the vibration motor and the LiPo must be soldered (no connectors).

BI1R7: latest version, vibration motor and LiPo are connected to the board with JST SH jumper.

Schematic

Top side

Bottom Side