Adafruit
Adafruit Power Relay FeatherWing
The Adafruit Power Relay FeatherWing lets you switch high-power loads — lamps, fans, solenoids, small appliances, and more — directly from any Feather microc...
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The Adafruit Power Relay FeatherWing lets you switch high-power loads — lamps, fans, solenoids, small appliances, and more — directly from any Feather microcontroller board. With a switching capacity of up to 10A at 120 VAC or 5A at 240 VAC (resistive loads), it can handle up to 1,200 watts.
The non-latching relay is controlled by a single GPIO pin, configurable via a solder jumper on the underside of the board. Simply stack it onto your Feather using headers and you have a compact, powerful switching solution for home automation, industrial control, or any project that needs to toggle mains-powered devices.
Key Features
- Non-Latching Relay – Single GPIO pin control; relay returns to off when power is removed
- High Switching Capacity – 10A at 120 VAC, 5A at 240 VAC (resistive loads); approximately half for inductive loads
- Up to 1,200 Watts – Handle computers, TVs, fans, lamps, and small appliances
- Configurable Control Pin – Solder jumper on the underside lets you select which GPIO drives the relay
- Feather Form Factor – Stacks onto any Adafruit Feather board
- Screw Terminal Output – Secure connections for the switched load
Ideal For
- Home automation — switching lights, fans, and appliances
- IoT-controlled power switching with WiFi or BLE Feathers
- Solenoid and motor control
- Timed power switching and scheduling projects
Package Contents
- 1× Adafruit Power Relay FeatherWing (fully assembled and tested)
- 1× Header set (requires soldering)
Jargon buster
Plain-language definitions for the technical terms used above.
- BLE
- BLE stands for Bluetooth Low Energy, a Bluetooth mode designed for low power use and broad compatibility with modern phones and computers. It connects well to battery-powered and mobile devices, including Apple hardware, though it behaves differently from Bluetooth Classic and its serial-style profiles.
- FeatherWing
- A FeatherWing is an add-on board made to plug into the Feather microcontroller board layout. Knowing a product is a FeatherWing helps you check whether it will physically and electrically fit your Feather-style mainboard.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- Headers
- Rows of connector contacts on a fixed pitch (commonly 2.54 mm) used to link a board to a breadboard, jumper wires, or another board. They come as male pin headers and female socket headers; when a module ships with pre-soldered headers it can be used straight away, whereas bare pads require soldering the pins yourself.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- 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.
- solder jumper
- A solder jumper is a small pair or group of pads on a circuit board that can be bridged or cut with solder to change a hardware setting. It matters because changing modes may require careful soldering rather than just changing software.
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