Relays
Relay modules
Relay for micro:bit (micro:bit Relay board)
The MonkMakes Relay for micro:bit is a solid-state (no moving parts) relay that allows an output of a micro:bit to turn things on and off.
Single Channel 5V Relay Breakout Board (5v relay breakout)
The Relay breakout board is a convenient board to be used with 5V microcontrollers such as SK40C, SK28A, Arduino, SKds40A, SK18B. You can easily use 5V signal to control the relay.
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