sparkfun/Beefcake_Relay_Control_Kit
The Beefcake Relay Control Kit contains all the parts you need to get your high-power load under control.
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The Beefcake Relay Control Kit contains all the parts you need to get your high-power load under control.
A wireless bootloader for Arduino and Electric Imp
The RedBoard is SparkFun's take on the Arduino Uno. It combines the simplicity of the Uno's Optiboot bootloader (which is used in the Pro series), with the stability of the FTDI and a mini-B USB connector.
Tactile LED button breakout board available from SparkFun Electronics