• LPC812 + RFM69HW (EtnaNode MK2)
  • DS18b20
  • 1/4 Wave antenna
• 5.5V 250mA Solar Panel 110mm x 70mm
• Xadow GSM+BLE Module (with inbuilt LiPo charging)
• 500mAh LiPo

• Get latest firmware onto Xadow
• Work out method of comms with Xadow - options include i2c (though this involves setting it up both on Xadow but also on LPC812) or some how tapping in to the header and pulling out the UART
• Get simple passing of data from LPC812 to Xadow and then GSM messaging that home
• Next is getting data via GPRS (there is an HTTPS function)
• Then add extra features (charging data etc)

function send_gsm_message()
    gsm.text(phone_number, "Hi I'm Alive")
end

id = timer.create(10000,send_gsm_message)

• https://github.com/Seeed-Studio/CodeLite_for_RePhone/wiki/building-RePhone-applications-on-Mac-OS-X
• https://github.com/Seeed-Studio/Lua_for_RePhone