My 2¢ on the hardware
- Atmega8L running at 3.3V / 8MHz
- 3.3V I2C interface to the 2.4 GHz Spectra
- RN-XV WiFly module
- All powered by 2 AA Batteries (e.g. NiHM/2Ah) using a MCP1640 SMPS
- 2 x Led and a push-button for setting SSID and/or IP address (simple interface)
See the schematic. Please comment, this its far from finished!