In most Arduino projects, relays are the first choice to drive some large current device. It requires a certain amount of current to drive the internal coil to pick-up contact. But for some MCU, like Intel Edison, Intel joule, lilypad, Raspberry Pi and other microcontroller with limited amount of current GPIO, it’s hard to drive one or more relays simultaneously.

The MOSFET power controller is a module which can drive a large current device with limited current GPIO. It works as a MOSFET relay or MOSFET driver. When you give it a digital high-level signal (3.3~10V), MOSFET turns on, vice versa.

Compare to the relay module, MOSFET power controller is compatible with Arduino Raspberry Pi, Lattepanda and other Microcontroller, supports 3.310V logic power control. The VIN port supports 536V; 0~20A power input, if the current is over 10A, we recommend an external heat sink. And MOSFET supports quick ON-OFF switch, the switching frequency arrives 1KHz. That is a good point for robot control.

The MOSFET power controller comes with a standard PH2.0-3P gravity interface. It makes the module compatible with the Arduino IO expansion shield. Plug and play, easy to use.


Board Overview


Num Name Description
1 VIN Power Input (DC:5~36V)
3 VOUT Power Output
4 PH2.0-3Pin Gravity Interface


This tutorial demonstrates the module usage. It could be finished in 10 minutes


Connection Diagram

MOSFET Power Controller Connection Diagram

Sample Code

This demo code is used to turn on/off lamp through our product.(We provide 3.3V for the mudule here.)

* @DFRobot
* @author Hudianjiang
* @version  V1.0
* @date  2016-8-30
const int LampControl=3;                   //define var
void setup() {
  pinMode(LampControl,OUTPUT);            // Set pinMode
void loop() {
  digitalWrite(LampControl,HIGH);//Light up lamp 2s
  digitalWrite(LampControl,LOW);//Turn off lamp 2s

Expected Results

The lamp will blink like led (Actually I'm not suggest you to do so, it will reduce the service life.)


For any questions, advice or cool ideas to share, please visit the DFRobot Forum.


DFshopping_car1.png Get Gravity: MOSFET Power Controller from DFRobot Store or DFRobot Distributor.

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