Ling-R1PRO 433.92 MHz ASK/OOK Remote-Control Receiver Module

200–1,000 · MOQ 200US$1.98per module

1,001–10,000US$1.78per module

10,001+ · Volume orderRequest quoteFor production quantities

Typical applications

For remote-control receivers exposed to motor and load interference.

Use Ling-R1PRO for learnable remote-control reception in lighting, smart-home, door, toy and alarm products. Validate the finished installation.

Lighting & smart home

Learnable four-channel outputs for remote-controlled switching.

Rolling-shutter doors

Selectable output behavior for motor and door-control systems.

Security & alarms

ASK/OOK reception with stored learned remote controls.

Production test

Decoded output supports remote-control product testing.

Operating modes

Specify the output behavior when ordering.

M1, M3, M5 and M5N are the first online models. The datasheet defines further M4 and no-pairing variants; confirm availability before ordering.

AvailabilityModelOutput behavior

OnlineM1

Toggle: each remote-control press changes the corresponding output state.

OnlineM3

Momentary: output is high while the key is pressed. Default version.

OnlineM5

D0 provides fixed 9600 bps ASCII decoded serial output.

OnlineM5N

No-pairing serial version; D0 provides fixed 9600 bps ASCII output.

ReferenceM4 / M1N / M3N / M4N

Interlock and no-pairing variants defined in Datasheet V2.5; confirm availability before ordering.

Selection boundary: M1/M3/M4 use D0–D3 switching outputs. M5/M5N use D0 as the serial output. Confirm the required mode, transmitter, output logic and antenna before purchase.

Frequency433.92 MHz

Voltage2.6–5.5 V

Current6.9 mA typical

Sensitivity−116 dBm typical

Serial rate9600 bps

I/O drive15 mA maximum

Temperature−30 to +80 °C

Dimensions22.23 × 11.43 × 2.50 mm

Technical specifications

Selection data from Datasheet V2.5.

Use the released datasheet for final circuit, antenna and complete-product decisions.

Operating frequency433.92 MHz

ModulationASK/OOK reception

Operating voltage2.6–5.5 V · 3.0 V typical

Operating current6.9 mA typical

Receiver sensitivity−116 dBm typical

Data interfaceSwitching outputs or serial, by ordered model

Serial output9600 bps · ASCII plain text · M5/M5N

Learnable remotesUp to 80 · retained without power

OutputsD0–D3 · 4 channels · 15 mA max per I/O

Operating temperature−30 to +80 °C

Antenna interface50 Ω · TT02 recommended

Dimensions22.23 × 11.43 × 2.50 mm

Pins & output mapping

Connect according to the ordered mode.

Use common ground with the host controller or external circuit. Do not exceed the specified I/O drive capability.

Pin functions

K/O: Pairing key; double-press to enter pairing mode.
D0–D3: Four switching outputs in M1/M3/M4. D0 is serial output in M5/M5N.
VCC / GND: 2.6–5.5 V supply and common ground.
ANT: 50 Ω antenna interface; TT02 antenna recommended.

Output-to-key mapping

D0: Key value 1 · common Ling-T3 key K3
D1: Key value 2 · common Ling-T3 key K2
D2: Key value 4 · common Ling-T3 key K1
D3: Key value 8 · common Ling-T3 key K0

Learning & control

Pair, clear and stop outputs from the module key.

N versions require no learned pairing. The LED lights for about one second after successful pairing.

1
Enter learning
After power-on, quickly double-press the pairing key. The LED starts flashing.
2
Pair a remote
Activate a key on the compatible transmitter or remote control.
3
Clear memory
Hold the pairing key for more than eight seconds after power-on, then release it.
4
Emergency stop
Briefly press the pairing key during operation; D0–D3 return low.

Serial output

M5/M5N provide decoded data on D0.

Serial variants use fixed 9600 bps ASCII plain-text decoded output, not raw hexadecimal byte data.

Fixed serial settings

Output pin: D0
Serial rate: 9600 bps
Format: ASCII plain text
Frame tail: CRLF · \r\n

Frame structure

Example: LC:DAB10893\r\n
Header: LC: fixed frame header
Data: Three valid data bytes represented by six hexadecimal characters
Checksum: One-byte sum checksum represented by two hexadecimal characters

Integration notes

Validate RF performance in the finished product.

Receiving distance and stability depend on transmitter power, antenna, supply, enclosure, installation position, motor or relay interference and the local co-channel environment.

Power supply

Use stable VCC supply and decoupling close to the module; add bulk capacitance as required by the load.

EMC & loads

Keep the module and antenna away from relay contacts, motors, switch-mode supplies, inductors and long harnesses.

PCB layout

Keep ANT routing short as a 50 Ω RF trace. Separate RF, digital-output and load-drive areas.

Antenna & mechanics

Keep copper, batteries, shields, metal enclosures and long harnesses away from the antenna; retest in final structure.

Compliance boundary: Where the completed product requires FCC, CE, SRRC, EMC or similar certification, rely on complete-product testing and formal reports.

Technical downloads

Datasheet for evaluation and design-in.

Ling-R1PRO Datasheet V2.5

Technical specifications, pins, operating modes, serial format and integration recommendations.

Download Datasheet ↓

Which transmitters work with Ling-R1PRO?

Use compatible ASK/OOK transmitters such as Ling-T1, Ling-T3, Ling-T3A or Ling-T3MAX. Verify the final system on site.

Which models are available online?

M1, M3, M5 and M5N are the first online models. Contact FNRF for the other variants defined in the datasheet.

Does Ling-R1PRO support UART?

M5 and M5N provide fixed 9600 bps ASCII plain-text decoded output on D0.

How many remote controls can it learn?

Up to 80 remote controls can be learned and retained without power. N versions do not require pairing.

Purchase options

Order modules or start with a development kit.

Receiver module