OpenLog is an open source data logger. Simple to use, simple to change.
Ever need a convenient way to log 4 channels remotely, and don't have a lot of time to mess around programming up your own? PICAXE to the rescue!
This complete module is built upon the same technology as the ET-301, but includes on-board voltage regulation, LED status indicator, battery backed RAM, and a built-in patch antenna!
With the GPS Shield you can add GPS functionality to your Arduino.
This is a multi-band antenna covering the cellular, GPS, and WiFi frequency bands.
The PMB-688 GPS module provides high performance with a SiRFstarIII chipset and integrated patch antenna.
The uM-FPU V3.1 math coprocessor is a full featured standalone math engine that is capable of crunching even the toughest of mathematical equations.
The uM-FPU v3.1 is a floating point math coprocessor for your microcontroller. Send the data via SPI or I2C, and get an accurate result back without loading down your main micro!
The Phidget RFID - Credit Card Tag is a 125 KHz Credit Card Sized RFID Tag.