XBee Explorer regulated φροντίζει για τη ρύθμιση 3.3V, signal conditioning, και των βασικών δεικτών δραστηριότητας (Power, RSSI και DIN / DOUT, δραστηριότητα LED). Μετατρέπει τα σειριακά σήματα των 5V σε 3.3V έτσι ώστε να μπορείτε να συνδέσετε ένα σύστημα 5V (μέχρι και 3.3V) σε οποιαδήποτε μονάδα XBee

 It may look like a regular ol' Arduino shield, but don't be fooled, the pyXY (pronounced 'pixie') is a full blown shield-compatible development board.

This is an evaluation board for the SM5100B GSM/GPRS module everything you need to get started with the cellular module is included on this board. With FTDI's FT232RL connected up to UART0 of the SM5100B you can send AT commands from a PC terminal straight to the module

This new version uses an SMD 5x2 header. This is a simple to use USB AVR programmer. It is low cost, easy to use, works great with AVRDude, and is tested extensively on a Windows desktop. Based on Dick Steefland'sUSBtiny and Limor Fried's USBtinyISP.

MOSFETs are awesome. They're like a switch that you flip electronically! This MOSFET Power Controller makes it easy to switch a battery supply on and off using your favorite microcontroller. The board also has sewable pads so you can use it in e-textile projects that need more juice.

This is a small buzzer for the LilyPad system. Use 2 I/O pins on the LilyPad main board and create different noises based on the different frequency of I/O toggling. Loud enough to hear inside a pocket but not obtrusively loud.

This is not your typical temperature sensor. The TMP006 Breakout can measure the temperature of an object without making contact with it.

The ATmega128RFA1 is a portmanteau of sorts – two separate components combined to form one device; half microcontroller, half RF transciever. 

The Copernicus II is a great GPS module from Trimble, but the SMD module prohibits immediate gratification.

If you've ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. The SparkFun bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time.

Here is a breakout board for the LS20126 GPS receiver.

A small, but mighty power supply. This board was designed to be as small and inconspicuous as possible.