{"product_id":"micro-bit-4-route-relay-expansion-module","title":"Keyes 4-Channel 5V Relay Shield for BBC micro:bit","description":"\u003cp\u003e\u003cb\u003eUnlock Your micro:bit's Potential: Control 4 Devices with Ease!\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eTake your BBC micro:bit projects to the next level with the Keyes 4-Channel 5V Relay Expansion Board. This powerful shield plugs directly onto your micro:bit, allowing you to use simple code to control real-world, high-power devices like lights, fans, motors, and small appliances. It's the perfect tool for STEM education, DIY home automation, and interactive art projects.\u003c\/p\u003e\n\u003cp\u003eDesigned for simplicity, this board is fully compatible with Microsoft MakeCode (PXT) graphical programming. Just provide 5V power to the board's VIN\/GND terminals, and you're ready to control four independent relays using digital signals from your micro:bit.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHow It Works:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe board is \"High Trigger,\" meaning a HIGH signal (a \"1\") from a micro:bit pin will activate the corresponding relay. The relays are pre-wired to specific pins, making setup a breeze:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRelay 1:\u003c\/b\u003e Controlled by Pin \u003cb\u003eP4\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRelay 2:\u003c\/b\u003e Controlled by Pin \u003cb\u003eP3\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRelay 3:\u003c\/b\u003e Controlled by Pin \u003cb\u003eP7\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRelay 4:\u003c\/b\u003e Controlled by Pin \u003cb\u003eP6\u003c\/b\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDirect micro:bit Compatibility:\u003c\/b\u003e Features an edge connector to plug your micro:bit in directly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e4-Channel Control:\u003c\/b\u003e Independently control up to four different devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEasy to Use:\u003c\/b\u003e Operates on 5V DC power and uses a simple High-Level trigger.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSafe \u0026amp; Reliable:\u003c\/b\u003e Onboard relays can handle up to 3A at 120VAC or 3A at 24VDC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBeginner-Friendly:\u003c\/b\u003e Fully supported by MakeCode's drag-and-drop block programming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClear Indicators:\u003c\/b\u003e 4 LEDs light up to show the status (On\/Off) of each relay.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cb\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBrand:\u003c\/b\u003e Keyes\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInput Voltage (Board):\u003c\/b\u003e DC 5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrigger Mode:\u003c\/b\u003e High Level (Active High)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eChannels:\u003c\/b\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eControl Pins:\u003c\/b\u003e P4, P3, P7, P6\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eContact Capacity:\u003c\/b\u003e 3A @ 120VAC \/ 3A @ 24VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDimensions:\u003c\/b\u003e 80mm x 58mm x 15mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWeight:\u003c\/b\u003e 51.7g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cb\u003eWhat's in the Box:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Keyes 4-Channel 5V Relay Expansion Board for micro:bit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ci\u003e\u003cb\u003eNote:\u003c\/b\u003e The BBC micro:bit development board is \u003cb\u003enot\u003c\/b\u003e included.\u003c\/i\u003e\u003c\/p\u003e","brand":"Keyes","offers":[{"title":"Default Title","offer_id":45228556386455,"sku":"21PS002288","price":270.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/keyes-microbit-relay-board-top-bottom-view.jpg?v=1762070809","url":"https:\/\/scccltd.com\/en-tw\/products\/micro-bit-4-route-relay-expansion-module","provider":"Sun Cheong Computer Company Limited","version":"1.0","type":"link"}