We need a hardware and firmware design for a cheap and tiny GPS locator for a pilot project. It won't be any different from the ones in the market. What we want to do is simple. Detect the motion, send an SMS through GSM and send the GPS coordinates through GPRS.
Sleep/Awake with a call or message.
-Cost under 20 euro .
-The size can vary but it should fit in the palm easily and attachable to a keychain but as small as possible.
-Long Battery life, at least a month with one charge (it will mostly stay in standby mode)
-Rechargeable battery through cable is a must.
-Built-in motion sensor.
If you come up with an appropriate cost and size, let us know.
Thanks for your cooperation.