Unlock Your micro:bit's Potential: Control 4 Devices with Ease! Take 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. Designed 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. How It Works: The 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: Relay 1: Controlled by Pin P4 Relay 2: Controlled by Pin P3 Relay 3: Controlled by Pin P7 Relay 4: Controlled by Pin P6 Key Features: Direct micro:bit Compatibility: Features an edge connector to plug your micro:bit in directly. 4-Channel Control: Independently control up to four different devices. Easy to Use: Operates on 5V DC power and uses a simple High-Level trigger. Safe & Reliable: Onboard relays can handle up to 3A at 120VAC or 3A at 24VDC. Beginner-Friendly: Fully supported by MakeCode's drag-and-drop block programming. Clear Indicators: 4 LEDs light up to show the status (On/Off) of each relay. Technical Specifications: Brand: Keyes Input Voltage (Board): DC 5V Trigger Mode: High Level (Active High) Channels: 4 Control Pins: P4, P3, P7, P6 Contact Capacity: 3A @ 120VAC / 3A @ 24VDC Dimensions: 80mm x 58mm x 15mm Weight: 51.7g What's in the Box: 1 x Keyes 4-Channel 5V Relay Expansion Board for micro:bit Note: The BBC micro:bit development board is not included.
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