This wireless RF kit consists of a 2-button handheld transmitter and a high-sensitivity super-regenerative receiver module. Unlike "latched" or "momentary" switching modules, this receiver provides a raw data output (Vin-D0-D1-GND), making it the standard choice for projects requiring custom protocol decoding or unique ID identification via microcontrollers.

Specifications

• Operating Frequency: 433.92 MHz
• Modulation Type: ASK / OOK (On-Off Keying)
• Transmission Range: 20m – 100m (Greatly depends on antenna and obstacles)
• Receiver Sensitivity: -105dBm
• Operating Temperature: -10°C to +70°C

RF Transmitter (Handheld Remote)

• Buttons: 2 Independent Channels (A/B or 1/2)
• Power Supply: 12V (27A Alkaline Battery included)
• Encoding: Fixed Code (typically PT2262 or EV1527 compatible)
• Build: Compact keychain design with a sliding cover to prevent accidental triggers.
• LED Indicator: Bright LED lights up during transmission to confirm battery health and signal output.

RF Receiver Module (4-Pin Data)

• Voltage Supply (Vin): 5V DC (Stable 5V is recommended for maximum range)
• Current Consumption: 4mA (Quiescent)
• Data Pins (D0, D1): These pins output the raw digital bitstream. They are internally tied together on the PCB, providing the same demodulated signal for redundancy or easier routing.
• Pinout: Vin, D0, D1 (or D0), GND
• Antenna Terminal: Small "ANT" solder hole for a 17.3cm whip antenna (required for usable range).

Features

• Raw Data Output: The module passes the raw square-wave signal directly to your microcontroller. This allows you to identify unique digital codes from different remotes rather than just a simple high/low trigger.
• Microcontroller Compatible: Easily interfaces with 5V logic. For 3.3V devices (like ESP32 or Raspberry Pi), a simple voltage divider on the data pin is recommended.
• High Noise Tolerance: The super-regenerative circuit naturally filters out low-frequency interference, though the data pins will show "chatter" (high-speed random bits) when no transmitter is active.
• Compact Footprint: The receiver's small size allows it to be easily embedded into DIY home automation hubs or small IoT enclosures.

Usage Notes

1. Decoding Required: Because the data pins output raw radio noise when idle, you must use a software library (such as RC-Switch for Arduino) to recognize the specific pulse-width patterns of your transmitter.
2. Antenna Requirement: To achieve reliable range, you must solder a 17.3cm solid core wire to the ANT pad. For best results, keep the wire straight and away from metal objects.
3. Collision Avoidance: If two remotes transmit simultaneously, the signals will collide, and the receiver will output undecipherable noise.