Elecrow
4 Channels RF Remote Control Module DC 5V
This Elecrow 4-channel RF remote control module pairs a 433MHz wireless receiver board with a 5-button RF remote controller. Each of the four latching relays...
This Elecrow 4-channel RF remote control module pairs a 433MHz wireless receiver board with a 5-button RF remote controller. Each of the four latching relays provides passive (dry contact) output, allowing you to switch mains-powered appliances or DC loads up to 10A without additional circuitry. The module can also be controlled directly by a microcontroller via its standard interface.
The self-locking (latching) mode means each relay toggles on and off with successive button presses. LED indicators (D1–D4) show the status of each relay channel, plus a power LED (D5). The included remote provides a range of 15–30 metres.
Key Features
- 4 Latching Relay Channels – Self-locking mode with passive (dry contact) output
- 433MHz RF Wireless – 15–30 metre remote control range
- High-Current Relays – Rated up to 10A at 250VAC or 10A at 30VDC
- Microcontroller Compatible – Standard interface for direct MCU control
- LED Status Indicators – D1–D4 for relay status, D5 for power
- 5-Button Remote Included – Individual channel control plus all-off
Specifications
- Working Voltage – 5–5.5V DC
- Working Current – ~220mA
- Quiescent Current – ~6mA
- Max Load – 10A at 250VAC / 10A at 30VDC
- RF Frequency – 433MHz
- Remote Range – 15–30 metres
- Relay Mode – Self-locking (latching)
- Module Dimensions – 65 × 50 × 20mm
Package Contents
- 1× 4-Channel RF Receiver Module
- 1× 5-Button RF Wireless Remote Controller
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- RF
- RF means radio frequency, referring to signals used for wireless communication and other high-frequency electronics. A low-noise, stable power supply is important for RF circuits because power noise can affect signal quality and measurements.
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