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Mosfetti 4 Channel MOSFET Driver Board by Monk Makes
The Mosfetti by Monk Makes is a compact 4-channel MOSFET switch designed for maker projects. Each channel can drive up to 2 A of low-side switching at up to ...
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The Mosfetti by Monk Makes is a compact 4-channel MOSFET switch designed for maker projects. Each channel can drive up to 2 A of low-side switching at up to 16 V DC, making it perfect for controlling relays, solenoids, LED strips, pumps, and motors from a microcontroller.
Supplied as a PCB with surface-mount components pre-attached, plus header pins and screw terminals as a solder-it-yourself kit. Built-in flyback diodes on every channel protect against inductive load spikes, and a resettable polyfuse guards against overcurrent.
Key Features
- 4 Independent Channels – Low-side MOSFET switching, up to 2 A per channel
- Resettable Polyfuse – 2.5 A max total overcurrent protection
- Flyback Diodes – Built-in on each channel for inductive loads (motors, relays, solenoids, pumps)
- LED Indicators – Power LED plus individual channel status LEDs
- Up to 16 V DC – Suitable for a wide range of loads
- Kit Format – SMD components pre-soldered; header pins and screw terminals included for user assembly
Ideal For
- Driving LED strips, relays, and solenoids from Arduino or Raspberry Pi
- Model railroads and RC projects
- Irrigation pumps and automation
- Strobe lights and signalling
Jargon buster
Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- inductive load
- A device with a coil, such as a relay, solenoid, or motor, that stores energy in a magnetic field. Inductive loads can create voltage spikes when switched off, so they often need protection components like diodes.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- PCB
- A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
- SMD
- SMD means surface-mount device, a component style designed to be soldered directly onto the surface of a circuit board rather than through holes. SMD parts are compact and mounted flat on the board, which suits smaller and mass-produced designs.
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