- Revision 2 - 06/06/2014
- Schematic
- Add Dangerous Prototypes DP7043 pcb footprint and mounting holes
- Add lipo battery charger and charge status led
- Add mini-b usb connector for charging or usb power
- Add capacitors for hardware debouncing for 2 pos dip switch
- Change all 0603 size components to 0805 size
- Change C12 size to 0805 (same as C9)
- Change 0402 size for I2C IO expander address jumpers to 0603 size
- Change I2C pull-ups to 10k
- Change BL bootloader switch to a pin header jumper
- Change test points to single pin headers
- Layout
- Change to longer pads on io expander
- Change to longer pads on voltage regulator
- Change test point pin headers to 0.1" pitch apart
- Move passives away from I2C IO expander for easier soldering
- Move passives away from voltage regulator for easier soldering
- Label the UART header pins
- BOM
- Change power switch from mom-on-mom to on-on-on
- Change spi flash size from 8mbit to 16mbit (same price)
- Change to taller 2-pos DIP switch
- Schematic
- Revision 1 - 09/16/2013
- Initial release