A lot of projects use pro mini because it is excellent arduino board. So I decided to design improved pro mini board for mysensors projects.
- 100% pin to pin compatible with original arduino pro mini board
- External JDEC EPROM\Flash memory chip on board
- Onboard Atmel ATSHA204A CryptoAuthentication chip
- Battery voltage sensor (via divider)
- Ultra LDO onboard (it is easy to cut it).
- Temperature and humidity sensor Si7021 (optional, to reduce board price)
- All components are on the top side, so board is suitable for smd mounting.
- Easy in production 6mil width\clearance board
It is too late to produce this board today, but I've added contest tag just in case :)