This is a great option for adding remote control capability to your Arduino, ESP32 or other microcontroller and electronics projects. Included is the remote control, batteries, and receiver. Simply provide 3.3-5V and Gnd to the V+ and Gnd pins on the receiver. Each of the normally low D0-D3 pins on the receiver will become active when the corresponding button on the remote is pressed. Thousands of remotes can be paired to a single receiver board by simply following the simple pairing instruction and using the "learn" button on the receiver. The remote can be paired with the receiver in "momentary", "toggle" or "interlocked" modes. You can attach a 1/4 wavelength (6.8in) or 3/4 wavelength (20.4in) wire to the antenna terminal to maximize effective range (manufacturer claims range of 100 meters). This receiver and transmitter pair uses "super heterodyne" technology. This makes the performance much better than the brown wood grain styled remotes that you often see for maker type projects (I've used them both and these are much better!)

Qiachip RX480E-4 Specifications:

[Receiver module ] Product Model: RX480E-4
Working Voltage : DC3.3~5V
Quiescent Current : ≤5mA
​Output current : 10 mA
Working Frequency: 433MHz( Others can be customized )
Receive Sensitivity: -108dB
Frequency band: ±0.2MHz
Working Temperature : -25~75

Pairing Instructions:
  1. Delete existing data: Press learning button 8 times. Response: LED flashes 7 times.
  2. Learning remote code: press learning key once, twice or three times (see below).
    LED turns on: learning mode is active. Press any button of the remote control.
    LED indicator flashes three times: learning successfully completed.
  3. Test: after the above operation , the receiver board can be controlled by the remote control.
Functions:
  • Press once: Inching mode (Momentary Mode)
  • Press twice: self-Lock Mode (Toggle-Mode of the 4 Channels)
  • Press three times: interlocked mode (selected channel active and be cleared, if another channel becomes active)

GND : ground or negative pole

+V : DC3.3~5V input
D0: Data output
D1: Data output
D2: Data output
D3: Data output
VT: Output 


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