SparkFun MOSFET Power Controller

MOSFETs are fantastic. They are like a switch that you can toggle electronically! This MOSFET power controller makes it easy to turn a battery supply on and off with your preferred microcontroller. The board also features sewable pads, allowing you to use it in e-textile projects that require more power.

The MOSFET power controller was created because microcontrollers like the Arduino or LilyPad Arduino can only supply a limited amount of current. However, sometimes you want to control something that requires a lot of power, like a fan or a heater (or a really bright LED). Simply connect a battery to the JST connector on the MOSFET power controller, attach the device that needs power to the output, and then connect one of the digital outputs from your microcontroller to the input pads. Now, when you set this pin on your controller to HIGH, the battery will be connected!

The N-channel MOSFET used in this design is rated for up to 30V and 6.5A, although the board is actually intended to be used at lower power levels. If you connect anything other than a 3.7V Li-Po battery, you do so at your own risk!

Features:

* Control high-current loads
* JST connector makes battery swapping a breeze
* It's sewable! (Also has standard headers with a 0.1" pitch).