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QIACHIP RX480E Instruction Manual DC 3V-5V 433MHz RF Decoding Wireless Receiver Module

QIACHIP RX480E-4C Product Diagram.webp

Version: V1.0

Last Updated: 2026-2-27

Model: RX480E

Product Size

QIACHIP RX480E-4C Size Figure.webp

  • Receiver Length (L) x Width (W) x Height (H): 28mm x 12mm x 1mm
  • Receiver Pin header pitch: 2.5 mm

Component Description

QIACHIP RX480E-4C Component Description Figure.webp

  • 1: Antenna
  • 2: Indicator light
  • 3: Learning button
  • 4: VT (External Key Input Pin)
  • 5: D3 (High-level signal output corresponding to remote control key 8)
  • 6: D2 (High-level signal output corresponding to remote control key 4)
  • 7: D1 (High-level signal output corresponding to remote control key 2)
  • 8: D0 (High-level signal output corresponding to remote control key 1)
  • 9: V+ (Positive Power Input Pin)
  • 10: GND- (Power Ground Pin)

Function description and setting method

(1) Momentary mode; (2) Toggle mode; (3) Latching mode; (4) Reset function; (5) Power-On Auto-Engagement.

  • When you use the third working mode, a remote control with at least two buttons is required.
  • Once the receiving module and transmitter are paired and a working mode is set, the receiving module will keep this mode even after power off and power on again.
  • The following working modes require the use of QIACHIP brand remote controls (transmitters) and controllers (receiving modules/wireless remote control switches). Compatibility with other brands is not guaranteed.

(1) Momentary mode

In this mode:

  • Press and hold the corresponding button on the remote control, and the corresponding pin on the receiver module will output a high-level signal "1".
  • Release the corresponding button on the remote control, and the output signal on the corresponding pin of the receiver module will change to "0".

How to set momentary mode

Step 1

Click the learning button on the receiver module once. The LED indicator on the receiver module will flash and then stay on, indicating that the receiver has entered pairing mode.

Step 2

Press the button on the transmitter to be paired. The LED indicator on the receiver module will flash and then turn off, indicating that the momentary mode has been successfully set.

(2) Toggle mode

In this mode:

  • Press the corresponding button on the remote control once, and the corresponding pin on the receiver module will continuously output a high-level signal "1".
  • Press the same button on the same remote control once again, and the output signal on the corresponding pin of the receiver module will change to "0".

How to set toggle mode

Step 1

Click the learning button on the receiver module twice. The LED indicator on the receiver module will flash and then stay on, indicating that the receiver has entered pairing mode.

Step 2

Press any button on the transmitter to be paired. The LED indicator on the receiver module will flash continuously and then turn off, indicating that the toggle mode has been successfully set.

(3) Latching mode

In this mode:

  • Press the "A" button on the remote control once, and pin D3 of the receiver module will continuously output a high-level signal "1".
  • Press the "B" button on the remote control once, and the output signal of pin D3 of the receiver module will change to "0", then pin D2 of the receiver module will continuously output a high-level signal "1".

How to set latching mode

Step 1

Click the learning button on the receiver module three times. The LED indicator on the receiver module will flash and then stay on, indicating that the receiver has entered pairing mode.

Step 2

Press any button on the transmitter to be paired. The LED indicator on the receiver module will flash and then remain on.

Step 3

Press another button on the same transmitter. The LED indicator on the receiver module will flash continuously and then turn off, indicating that the latched mode has been successfully set.

(4) Reset function

When the RX480E-4C receiver module is reset, all paired transmitters will be unpaired and will no longer be able to control the receiver module.

How to reset

Step 1

Click the learning button on the receiver module 8 times. The indicator light will flash and then will turn off. The reset will be complete.

Antenna Size

General Application Type

For general applications, you can directly use the market-standard specifications for the antenna. Details of the 433MHz antenna are as follows:

QIACHIP RX480E-4C Antenna Size Figure 1.webp

  • Wire length at the soldering end: 10mm
  • Total straight length of the antenna wire: 170mm
  • Number of winding turns: 9 turns

Special Enhanced Type

If a longer communication distance is required and the general application type antenna cannot meet the demand, an enhanced type antenna can be used to improve the receiving distance. Details of the 433MHz antenna are as follows:

QIACHIP RX480E-4C Antenna Size Figure 2.webp

  • Antenna core diameter (including outer sheath): 1.0 mm
  • Antenna core diameter (excluding outer sheath): 0.35 mm
  • Wire length at the soldering end: 12 mm
  • Antenna winding diameter (excluding outer sheath): 3.0 mm
  • Number of winding turns: 26 turns
  • Winding length: 36 mm

Electrical characteristics

Parameter Value
Input voltage DC 3.0V-5.0V
RF frequency 433.92MHz
Power Consumption 5mA
Receiver sensitivity -108dBm
Working temperature -42~85℃
Size 28x12x1mm

NOTE

  1. This product is a CMOS device. Please take anti-static precautions during storage, transportation and operation.
  2. Ensure proper grounding when using the device.
  3. RF devices are voltage-sensitive. If the power supply is unstable or has significant ripple, add filtering at the power input terminal to ensure the supply voltage does not exceed the product's maximum operating voltage.