QIACHIP 433MHz RF Receiver Module (EV1527 Learning Code Decoder Board)
Introduce reliable, wireless logic control into your automation projects and custom hardware designs with the industrial-grade QIACHIP 433MHz RF Receiver Module. Built with advanced superheterodyne wireless decoding architecture, this compact board operates on the global standard 433.92 Megahertz radio frequency band, pulling raw data packets cleanly out of the air and translating them into crisp, digital high-level CMOS outputs.
Standard super-regenerative receivers suffer from severe frequency drifting and radio interference, resulting in dropped frames and poor range. Driven by a dedicated onboard decoding microcontroller, this high-sensitivity module filters out ambient noise and natively handles the EV1527 learning code protocol. It serves as the definitive choice for driving industrial relay shields, interfacing with microcontrollers, triggering automated barriers, and managing remote security networks.
Key Features
Advanced Superheterodyne Architecture: Engineered with high-frequency stability and exceptional noise suppression, delivering clean data tracking without requiring any manual adjustments.
Native EV1527 Decoding Engine: Features a built-in hardware decoder that automatically matches and logs unique 1527 wireless transmitter IDs, providing high security against signal overlap.
4 Independent Data Output Channels: Provides four standalone CMOS data pins (D0 to D3) that transition to a high level instantly when corresponding transmitter buttons are triggered.
Dedicated Transmission Valid (VT) Pin: Equipped with a visual tracking indicator pin that goes high whenever any valid encoded signal is actively being received, serving as a clean hardware interrupt.
Three Programmable Operating Modes: Supports flexible, user-selectable output styles (Momentary, Toggle, and Latching) directly configurable via a single onboard learning micro-switch.
Ultra-Compact 2.54mm Breadboard Layout: Designed with a slim, space-saving profile featuring standard 2.54mm header spacings for quick integration into development boards and test blocks.
Technical Specifications
Feature | Specification |
Operating RF Frequency | 433.92 Megahertz standard grid |
Supported Encoding Formats | EV1527 Learning Code / PT2262 Fixed Code |
Operating Input Voltage | DC 3.3V to 5.0V (Compatible with standard logic frames) |
Quiescent Standby Current | Less than or equal to 5 mA continuous draw |
Signal Receiving Sensitivity | Ultra-low -108 dBm threshold |
Output Type Profile | 4-Channel Digital High-Level Output (CMOS Level, 10 mA max per pin) |
Pin Configuration Interface | GND, +V, D0, D1, D2, D3, VT (7-Pin array layouts) |
Pinout Configuration Reference
GND: Power supply ground or system negative terminal block link.
+V: Direct-current positive input voltage supply (3.3V to 5V input).
D0 to D3: Channel 1 through Channel 4 digital data output pins (outputs high level upon button press).
VT (Valid Transmission): Common status tracking output (transitions high whenever any paired remote button is actively pressed).
Step-by-Step Operating Mode Programming Guide
Configuring your output behavior is easy using the receiver board's onboard tactile button:
Clear Stored Remote Memory: Press the onboard learning button 8 times continuously. The onboard status indicator light will flash seven times and switch off, indicating all existing paired remote IDs have been erased.
Set Momentary Mode (Inching): Press the learning button 1 time. Wait for the onboard status light to turn solid, then press any button on your remote control. The indicator will flash three times, assigning the output pins to stay high only while the button is held down.
Set Toggle Mode (Self-Locking): Press the learning button 2 times. Once the status light becomes steady, press your remote button. The indicator will flash three times, configuring the outputs to switch states (ON/OFF) with each distinct press.
Set Latched Mode (Interlocking): Press the learning button 3 times. When the status light turns on, press your remote button. This locks the channels mutually; activating one output pin automatically turns all other channels off.
Common Applications
Multi-Channel Relay Driving: Connect the digital outputs directly to the inputs of 1-channel, 2-channel, or 4-channel industrial relay boards to switch heavy household or factory mains lines wirelessly.
Microcontroller Data Interfacing: Route the D0-D3 and VT pins directly into Arduino, ESP32, or Raspberry Pi digital input banks to run custom background software scripts upon a button trigger.
Garage and Gate Automation Access: Integrate the module into motorized roller shutter panels, magnetic door locks, and automatic barriers for fluid key fob command processing.
Educational Prototyping Workbenches: An essential, highly reliable telemetry module for student engineering kits, wireless communication labs, and robotics control layouts.
🛠️ Pro-Engineering Antenna Tip: To achieve the maximum transmission range of up to 50 to 100 meters, a small external antenna wire should be attached to the dedicated solder pad labeled "ANT" on the edge of the module board. For an optimized 433 Megahertz radio wave capture, solder a simple piece of solid-core copper wire cut to a precise length of 17.3 centimeters straight up from the pad. Avoid wrapping or coiling this wire, as keeping it straight ensures optimal signal tracking.
Package Includes:
1 x QIACHIP 433MHz RF Receiver Module (EV1527 Decoding Board)