This LilyPad Coin Cell Battery Holder has a small slide switch installed on the board, in-line with the power so you can shut off your project and save batteries. 

Blink any color you need! Use the Tri-Color LED board as a simple indicator, or by pulsing the red, green, and blue channels, you can create any color. 

This is a simple to use Light Sensor that outputs an analog value from 0 to 5V.

The Si7021 is a low-cost, easy-to-use, highly accurate, digital humidity and temperature sensor. 

This analog panel meter measures DC voltage from 0-5 volts with 2.5% accuracy.

This is a fantastic find for SFE. A small, high-quality, quad-band, standard SMA terminated, cellular antenna.

Need range? The 2.4GHz Large Duck Antenna 5dBi with Reverse Polarized - SMA RF connector is perfect for you.

This will be a treat for your ears! The Hamburger Mini Speaker is a 3W economical speaker option for any project needing stand-alone sound.