Introduction
The Scimagic-RC SMG-822 is a universal 2-channel 433MHz receiver designed to control various automated systems such as garage doors, gates, and other electrical appliances. It is compatible with a wide range of fixed, learning, and rolling code remote control transmitters, offering flexibility and ease of integration into existing setups. This manual provides detailed instructions for installation, programming, and general use.
Image: Scimagic-RC SMG-822 Universal 433MHz Receiver with example remote controls.
Specifications
| Feature | Detail |
|---|---|
| Power Supply | DC 12V-24V |
| Frequency | 433.92MHz (also compatible with 433MHz) |
| Channels | 2 |
| Code Compatibility | Fixed code (e.g., 2262, 2260, 2264, 5326, M1E, M5E), Learning code (e.g., 1527, 2240, 6P20B, 6P20D), Rolling code (e.g., HCS301, HCS300, HCS200, HCS201, HSC100, HCS1O1) |
| Working Temperature | -40℃ to +80℃ |
| Reception Range | 70-100m (with built-in aerial antenna) |
| Max Transmitters | Up to 100 codes per receiver |
| Dimensions (L x W x H) | 15cm x 14cm x 4cm (approximate package dimensions) |
Package Contents
- 1x Scimagic-RC SMG-822 Universal Receiver
- 1x English Instruction Manual
Setup and Wiring
Before installation, ensure the power supply is disconnected from your existing system. The receiver operates on a DC 12V-24V power supply.
Component Identification:
Image: Internal view of the receiver board with labeled components.
- ANT: Receiver Antenna
- CH1: Relay Output 1
- CH2: Relay Output 2
- V+: Positive Voltage Input (12V-24V DC)
- GND: Ground
- LEARN1 / S1: Learning button for Channel 1
- LEARN2 / S2: Learning button for Channel 2
Wiring Instructions:
Connect the receiver to your motor or controller as shown in the diagram below. Ensure correct polarity for the power supply (V+ and GND).
Image: Example wiring diagram for gate control system.
- Connect the V+ terminal of the receiver to the positive (+) terminal of your 12V-24V DC power source.
- Connect the GND terminal of the receiver to the negative (-) terminal of your 12V-24V DC power source.
- Connect the CH1 relay output to the control input of your device (e.g., gate motor, garage door opener) for the first channel.
- Connect the CH2 relay output to the control input of your device for the second channel, if applicable.
- Ensure the ANT (antenna) is positioned for optimal signal reception.
Disclaimer: Please ensure you choose the correct number of receivers and remote controls for your specific needs. Incorrect selection is not the responsibility of the manufacturer.
Operating Instructions
Programming Transmitters (Momentary Working Model):
This receiver supports learning codes from various transmitters. You can either replace an old remote or add new ones.
Image: Illustration of replacing old remotes or adding new ones.
- Learning a Transmitter's Code:
- Press the "LEARN1" (for Channel 1) or "LEARN2" (for Channel 2) button on the receiver board for approximately 1 second. The "learn_led" light on the board will illuminate.
- While the "learn_led" is lit, press the desired button on your remote control transmitter.
- Continue pressing the transmitter button until the "learn_led" flashes and then goes out. This indicates that the transmitter's code has been successfully stored.
- Repeat these steps for any other transmitters you wish to program.
- Erasing All Transmitter Codes:
- Press and hold either the "LEARN1" or "LEARN2" button on the receiver board.
- Keep holding the button until the "learn_led" light illuminates and then goes out. This action will erase all previously stored transmitter codes from the receiver.
Video: Demonstration of programming a remote control with the receiver.
Applications
The Scimagic-RC SMG-822 receiver is versatile and can be used in a variety of applications, including:
- Garage doors
- Electronic gates (e.g., courtyard doors, furniture doors)
- Vehicle central locking systems
- Automated curtains
- Lighting control
- Other electrical appliances and home automation systems
- Car sunroofs
- Heating systems
Image: Various applications for the universal receiver.
Maintenance
- Keep the receiver clean and free from dust and moisture.
- Periodically check all wiring connections to ensure they are secure.
- Ensure the antenna is unobstructed for optimal performance.
- Do not attempt to open the receiver casing unless necessary for wiring or programming, and always disconnect power first.
Troubleshooting
- Receiver not responding to remote:
- Check if the receiver is powered correctly (LEDs on the board should be lit).
- Ensure the remote control battery is not depleted.
- Verify that the remote control has been correctly programmed to the receiver. Try re-programming the remote.
- If multiple remotes are not working, try erasing all codes and re-programming them.
- Poor reception range:
- Ensure the receiver's antenna is fully extended and not obstructed by metal objects or walls.
- Relocate the receiver to a position with better line-of-sight to where the remote will be used.
- Device not activating/deactivating:
- Check the wiring connections between the receiver's relay outputs (CH1, CH2) and your device's control inputs.
- Ensure your device (motor, light, etc.) is functioning correctly independently of the receiver.
User Tips
- For optimal performance, ensure the receiver is installed in a location protected from direct weather exposure.
- When programming, keep the remote control close to the receiver to ensure a strong signal during the learning process.
- If you are replacing an old receiver, make sure to clear all old codes from the new receiver before programming your existing remotes.
Warranty and Support
This product comes with a 1-year warranty from the date of purchase, covering manufacturing defects. For technical support, troubleshooting assistance, or warranty claims, please contact your seller or the manufacturer directly.
Manufacturer Address: Gebu Building 1406, Songgang, Baoan Shenzhen, China.
For further documentation, a PDF user manual is available. Please refer to the seller's website or contact support for the direct link.
