Lighting switches
Four-channel receiver output for remote lighting control.
Ling-R1 433.92 MHz ASK/OOK Wireless Receiver Module
200–1,000 · MOQ 200US$1.38per module
1,001–10,000US$1.20per module
10,000+ · Volume orderRequest quoteFor production quantities
Typical applications
For learnable, multi-channel remote-control receivers.
Ling-R1 automatically recognizes common ASK/OOK encodings such as 1527 and learns compatible RF remote controls.
Wireless doorbells
Learnable receiver for doorbell and call-button systems.
Rolling-shutter doors
Selectable output behavior for common control terminals.
Small appliances & alarms
Remote-control reception for appliances, toys and security alarms.
Operating modes
Select the output behavior before ordering.
The online selector only shows the stocked SKUs. The datasheet also defines additional mode variants; confirm their availability before ordering.
AvailabilityModelOutput behavior
OnlineM1
Toggle output: each remote-control press toggles the matching output state.
OnlineM3
Momentary output: high while the key is pressed, then returns low. Default version.
OnlineM5
D0 sends decoded data as fixed 9600 bps ASCII serial output.
OnlineM5N
No-pairing serial version; D0 sends decoded data as fixed 9600 bps ASCII output.
ReferenceM4
Interlock output: only one of D0–D3 is high at a time.
ReferenceM1N / M3N / M4N
No-pairing toggle, momentary and interlock output variants defined in the released datasheet.
Selection boundary: Switching versions use D0–D3. M5/M5N use D0 as the serial output. Confirm the required mode, transmitter, output logic and antenna before purchasing.
Frequency433.92 MHz
Voltage2.6–5.5 V
Current4.7 mA typical
Sensitivity−110 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 V3.2.
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 current4.7 mA typical
Receiver sensitivity−110 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 the receiver according to its 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 input. 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.
Ling-T3 family key mapping
- D0
- Key value 1 · common transmitter key K3
- D1
- Key value 2 · common transmitter key K2
- D2
- Key value 4 · common transmitter key K1
- D3
- Key value 8 · common transmitter key K0
Learning & control
Pair, clear and protect the output.
The LED indicates pairing activity and received learned signals. N variants do not require learned pairing.
- 1
Enter learning
After power-on, quickly double-press the pairing key. The status LED starts flashing.
- 2
Pair a remote
Press a key on the compatible transmitter. The LED lights for about one second after successful pairing.
- 3
Clear memory
Hold the pairing key for more than eight seconds after power-on, then release it to clear learned remotes.
- 4
Emergency stop
Briefly press the pairing key during operation; D0–D3 become low-level outputs.
Serial output
M5/M5N send decoded values on D0.
Serial versions use fixed 9600 bps ASCII plain text, not raw hexadecimal byte output. Adapt the parser to the MCU receive buffer and application state machine.
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 the transmitter, antenna, supply, enclosure, installation position, load interference and on-site co-channel conditions.
Power supply
Use a stable VCC supply; place a 0.1 μF decoupling capacitor close to the module and 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. Test while loads operate.
PCB layout
Keep ANT routing short as a 50 Ω RF trace. Separate RF, digital-output and load-drive areas to reduce coupling.
Antenna & mechanics
Keep copper, batteries, shields, metal enclosures and long harnesses away from the antenna. Retest in the 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-R1 Datasheet V3.2
Technical specifications, pins, operation, serial format and integration recommendations.
Which transmitters work with Ling-R1?
Use Ling-T1, Ling-T3, Ling-T3MAX or another compatible ASK/OOK transmitter.
Which variants are available online?
The online selector currently lists M1, M3, M5 and M5N. Refer to the datasheet and contact FNRF to confirm other model availability.
Does Ling-R1 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 variants do not require learned pairing.
Purchase options
Order modules or start with a development kit.
Receiver module
Ling-R1 · 433.92 MHz
M1, M3, M5 and M5N · Stock: 6,000 each
US$1.38200–1,000 · per module
US$1.201,001–10,000 · applied in cart
Online purchase quantity: 200–10,000 modules. Request a quote for quantities above 10,000.
Development kit
Start testing faster
US$69 / set
- 10 Ling-R1 modules
- 1 development assistant
- 1 ASK receiver demo
- 4 Ling-T3A transmitter modules
- Free shipping
SKU: SET-Ling-R1_433_V2.02 · Stock: 200 sets
Volume order
More than 10,000 modules?
Send the target quantity, delivery location and schedule for a quotation.
Request bulk quote →