GPS, Compass & Magnetic

The Locosys LS20031 GPS receiver integrates a MediaTek MT3339 66-channel GPS chip with a ceramic antenna to create a complete GPS module that can track up to 66 GPS satellites at a time. Supports a 10Hz update rate, TTL serial and includes a battery for rapid satellite acquisition and more than 6 different NMEA ASCII sentences. More details...

The very popular CMPS03 is a great little compass module designed for specifically for robotics use. It detects the earths magnetic field and outputs a direction reading with an accuracy of 3-4 degrees via either an I2C interface or a PWM signal. More details...

The CMPS09 module is a tilt compensated compass. Employing a 3-axis magnetometer and a 3-axis accelerometer and a powerful 16-bit processor, the CMPS09 has been designed to remove the errors caused by tilting of the PCB. Powered from 3.3-5V @25mA the compass outputs the bearing reading via serial, I2C or PWM interface. More details...

With the addition of a breakout board the surface mount Honeywell HMC6352 IC becomes a compass module ready to plug into any project. Using an I2C interface the module is able to communicate with most microcontrollers. More details...