A weblog focused on interesting circuits, ideas, schematics and other information about microelectronics and microcontrollers.
Open GPS Tracker
The Open GPS Tracker is a small device which plugs into a $20 prepaid mobile phone to make a GPS tracker. The Tracker responds to text message commands, detects motion, and sends you its exact position, ready for Google Maps or your mapping software. The Tracker firmware is open source and user-customizable.
Theis built on Tyco Electronics A1035D GPS module, Motorola C168i AT&T GoPhone prepaid mobile phone and Atmel ATTINY84-20PU AVR microcontroller.
Project requires no interface chips! All you need is a GPS module, a phone, an ATTINY84, a voltage regulator, a PNP transistor, and a few passive components. This is a commercial grade tracker and is currently a second-generation stable beta V0.16.