DC 5–30V 433MHz 1-Channel RF Wireless Relay Switch Module – Receiver Relay Board Only

DC 5–30V Input 433MHz 1-Channel RF Wireless Relay Switch Module – Receiver Only

Product Type: 433MHz Wireless Remote Control Switch
Application: DIY Smart Home Projects, Gate/LED/Appliance Control
Compatibility: EV1527 & Learning Code Transmitters

Receiver Module Specifications:

• Input Voltage: DC 5V – 30V

• Output Max Voltage & Current Ratings: 250VAC / 10 Amps ; 30VDC / 10 Amps

• Working Frequency: 433MHz

• Modulation Type: ASK (Amplitude Shift Keying)

• Reception Type: Superheterodyne Receiver

• Working Modes: Momentary, Toggle, Latching, Time Delay (5s, 10s, 15s)

• Standby Current: ≤ 5mA

• Receiving Sensitivity: > -97dBm

• Control Range: Up to 100 meters (open space; real-world range may vary) (remote control sold separately)

• Decoding Method: MCU Software Decoding

• Wiring Method: Screw Terminal Pillar

• Channel: 1CH (Single Channel Output)

Working Modes Explained:

• Momentary Mode:

  • Press and hold the remote button: Relay stays ON

  • Release the button: Relay turns OFF

• Toggle Mode:

  • Press once: Relay turns ON

  • Press again: Relay turns OFF

• Latching Mode:

  • Press button A: Relay turns ON

  • Press button B: Relay turns OFF

• Time Delay Mode:

  • Press the button: Relay activates

  • Release the button: Timer starts

  • Relay turns OFF automatically after 5s, 10s, or 15s

Programming Instructions:

Clear All Codes:

• Press the Learning Button on the receiver 8 times

• All paired remotes will be erased

• Reprogramming is required after reset

 Pairing Remote – Momentary Mode:

1. Press the Learning Button once

2. LED turns off – enters learning mode

3. Press the desired remote button

4. LED blinks then stays ON after 3 seconds – pairing successful

Pairing Remote – Toggle Mode:

1. Press the Learning Button twice

2. LED turns off – enters learning mode

3. Press the remote button you want to pair

4. LED blinks then stays ON – pairing successful

   Learning the Code: Latching Mode 

   Important: In Latching Mode, you must program two different buttons — one for ON and one for OFF. (for this mode you need a different 433mhz remote with 2 buttons other than the one included)

   1. Press the learning button on the receiver three times

   2. The LED indicator will flash briefly and turn off, indicating it's in latching learning mode

   3. Press the remote button A (this will act as the ON command) – the LED flashes 5 times

   4. Press the remote button B (this will act as the OFF command) – the LED flashes 5 times again

   5. After 3 seconds, the LED turns back on – learning completed successfully

   Example:

   • Button A = ON

   • Button B = OFF

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   ⏱️ Learning the Code: Time Delay Mode

   Time delay modes allow the relay to stay active for a set time after the remote is pressed.

   • 5-Second Delay: Press the learning button 4 times

   • 10-Second Delay: Press the learning button 5 times

   • 15-Second Delay: Press the learning button 6 times

   Steps:

   1. Press the learning button 4, 5, or 6 times depending on your desired delay time

   2. The LED will turn off – module enters delay learning mode

   3. Press the remote control button to pair

   4. The LED flashes and then turns off

   5. After 3 seconds, the LED turns on again – time delay learning successful

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   ⚡ Power-On Function Learning (Auto-On After Power Loss)

   This feature allows the relay to automatically turn ON when power is restored (ideal for lights, alarms, etc.).

   1. Press the learning button 8 times in succession

   2. The LED indicator will blink once, then stay lit

   3. Press the remote button you wish to assign

   4. The LED will flash 3 times – power-on function learning successful

   Note:

   • This is also known as the “power-on auto-start” or “power restore activation” mode.

   • If you want to switch to other operating modes later, you must clear all codes first by resetting the receiver.

 Key Features:

• Wide Voltage Support (DC 5V–30V) – Ideal for multiple power environments

• Stable RF Performance – Superheterodyne receiver ensures low interference and strong signal

• Versatile Control Options – 4 operational modes suit various use cases

• Compact, DIY-Friendly Design – Perfect for smart home projects and automation systems

• Remote Learning Code Compatibility – Supports learning code remotes like EV1527

 Package Includes:

• 1 × 433MHz RF Receiver Module (Remote sold separately)