Using the MOSFET driver with Arduino involves wiring up the MOSFET driver to your Arduino-compatible microcontroller and running the provided example code.
Wiring
Wire as shown for a 5V board like an Uno. If you are using a 3V board, like an Adafruit Feather, wire the board's 3V pin to the MOSFET driver V+.
Here is an Adafruit Metro wired up to the MOSFET driver with a motor using the STEMMA JST PH cable:
Solenoids are basically electromagnets: they are made of a coil of copper wire with an armature (a slug of metal) in the middle. When the coil is energized, the slug is pulled into the...
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If the load that you are driving requires more than 5V, then it will not trigger with this circuit.
- Board 5V to driver V+ (red wire)
- Board GND to driver GND (black wire)
- Board pin 3 to driver In (white wire)
- Motor black wire to driver terminal block -
- Motor red wire to driver terminal block +
Here is an Adafruit Metro wired up using a solderless breadboard:
- Board 5V to driver V+ (red wire)
- Board GND to driver GND (black wire)
- Board pin 3 to driver In (white wire)
- Motor black wire to driver terminal block -
- Motor red wire to driver terminal block +
// SPDX-FileCopyrightText: 2022 Liz Clark for Adafruit Industries
//
// SPDX-License-Identifier: MIT
#define driverPin 3
void setup() {
while (!Serial);
delay(1000);
Serial.begin(115200);
Serial.println("Basic MOSFET Driver Test");
pinMode(driverPin, OUTPUT);
}
void loop() {
digitalWrite(driverPin, HIGH);
Serial.println("The MOSFET driver is triggered.");
delay(1000);
digitalWrite(driverPin, LOW);
Serial.println("The MOSFET driver is not triggered.");
delay(1000);
}
Upload the sketch to your board and open up the Serial Monitor (Tools -> Serial Monitor) at 115200 baud. You should see the load triggered on and off while its status is printed to the Serial Monitor.
Page last edited January 20, 2025
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