433Mhz Wireless Remote Control Switch Mini Receiver Built-In Learning

Product description [Receiver module ] Product Model: RX480E

Working Voltage: DC3.3~5V

Quiescent Current : ≤5mA

Output current : 10 mA

Working Frequency: 433MHz

Receive Sensitivity: -108dB

Working Temperature : -25~75

Working mode: Momentary Mode , self-locking (Toggle-Mode of the 4 Channels) , interlocking

GND : ground or negative pole

+V : DC3.3~5V input

D0, D1, D2, D3: Data output

VT: Output

Important Notes

Please refer to this online description for correct operation guidance.

About the LED Indicator on Receiver Module

This LED is only for pairing & signal receiving prompt, NOT a constant working‑status indicator.

-It will flash/respond when you press buttons on the remote for code‑learning pairing.

-It will briefly blink when the receiver catches a signal from the remote controller.

-It will NOT stay steadily lit when output pins are active (toggle / latching output ON). Steady light does NOT equal output‑ON status. Do NOT judge output status only by this LED light.

Pin Mapping

This remote uses 8421 encoding order for buttons A‑B‑C‑D, while receiver output pins D0‑D1‑D2‑D3 follow 1248 logic.

That causes reversed button‑to‑pin mapping as below:

Remote Button A → Receiver Pin D3

Remote Button B → Receiver Pin D2

Remote Button C → Receiver Pin D1

Remote Button D → Receiver Pin D0

How to match the transmitter and receiver

Step 1. Delete existing data: Press learning button(on the receiver) 8 times.

Response: LED flashes 7 times.

Step 2. Learning remote code: press learning button(on the receiver) once, twice or three times .(choose one mode)

• Press once: Inching mode (Momentary Mode)
• Press twice: self-Lock Mode (Toggle-Mode of the 4 Channels)
• Press three times: interlock mode (selected channel active and be cleared， if another channel becomes active)

Response: LED turns on: learning mode is active.

Step 3.Press any button of the remote control.

Response: LED indicator flashes three times: learning successfully completed.

Step 4. Test: after the above operation , the receiver board can be controlled by the remote control. More transmitters with different IDs can be learned and stored additionally, starting with step 2. A mixture of different modes is possible.

Extended Mode (Mixed Mode)

2CH Momentary + 2CH Toggle: Press receiver’s pairing button 4 times, wait for LED flash to finish, then press any transmitter button to pair.

2CH Momentary + 2CH Interlock: Press receiver’s pairing button 5 times, wait for LED flash to finish, then press any transmitter button to pair.

2CH Toggle + 2CH Interlock: Press receiver’s pairing button 6 times, wait for LED flash to finish, then press any transmitter button to pair.

Frequently Asked Questions

Q: When the wireless relay is powered down, does it need to be paired and reprogrammed again?

A: No, it does not.

Q: I have only successfully paired/programmed one remote control, how can I make the second and third remote controls work as well?

A: You only need to pair the second and third remote controls with the wireless relay one after another.Please do not reset the relay during this process; otherwise, all previously paired/programmed remotes will become ineffective.

Q: How do I change the mode?

A:If you want to change the mode of a programmed/paired remote, you must reset the wireless relay and then select a new mode to pair (use with caution, as resetting will make all remotes paired with this relay ineffective).

Q:If there was a way to make different buttons have different modes. for example, A is toggle mode, and B is momentary mode.

A:Channels 1 and 2 can only be set to the same mode, and channels 3 and 4 must also be the same mode. You cannot have Channel 1 in Momentary Mode and Channel 2 in Toggle Mode. For Example,In “2-Channel Momentary + 2-Channel Toggle” mode, only output channels 1 and 2 are in Momentary Mode, while output channels 3 and 4 are in Toggle Mode.

Q: Is it normal that Button A controls D3, D controls D0?

A: Yes, it is the original hardware design and not a faulty product.

Mapping table:

A → D3;B → D2;C → D1;D → D0

This model uses 8421 encoding for remote buttons and 1248 logic for D0-D3 pins, all items have the same mapping. Confirm the real output by measuring pin level.

Q:\" VT \" On the receiver what is used for ?

A:The VT pin has 2 functions：

1, Using VT to control the LED as an Indicator, when any pin D0-D3 signal output, VT have a signal output at the same time.

2, Using VT and +V can replace the button function on the receiver.

(Note：The VT terminal is active when a signal is received, i.e. if any of the 4 channels is \"turned on\" the VT line is \"turned on\".）

The picture shows as follows:

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• Wide Application Environment: Remote control switch, receiver module, motorcycles, automobile anti-theft products, home security products, electric doors, remote control socket, remote control LED, garage door remote control, remote control door opener, remote control curtains, alarm host, remote control MP3
• Compact Design Features: Superheterodyne technology with small size for easy installation and integration into various applications
• Working Voltage Specification: Receiver operates on DC 3.3-5V power supply for versatile compatibility with different power sources
• Multiple Working Modes Available: Supports Momentary Mode, Toggle Mode, and interlocked mode for flexible operation based on your specific needs
• Package Contents Included: 1 x 4-button Transmitter, 1 x Receiver module, 1 x Antenna for complete wireless remote control setup
• Long Distance Range: 433MHz wireless frequency provides up to 656 FT long-distance remote control capability for extended coverage
• Built-in Learning Code Technology: Features 1527 decoding with 4 channel output for reliable signal transmission and reception