Remote-control switches
Transmit and receive three switch-signal channels.
Ling-TR7mini-T 2.4 GHz Micro Remote-Control Transceiver Module
100–500 · MOQ 100US$1.78per module
501–2,000US$1.65per module
2,001+ · Volume orderRequest quoteFor production quantities
Typical applications
Compact paired control for small wireless products.
Use Ling-TR7mini-T where switch inputs and outputs need a compact 2.4 GHz wireless link with pairing.
Smart appliances
Add paired wireless control to compact products.
Industrial controls
Transfer simple status and control signals wirelessly.
Small wireless terminals
Use the ceramic antenna where PCB space is limited.
System operation
One module, selectable transmit or receive behavior.
WM selects transmit or receive operation; MC selects momentary or toggle output behavior in receive mode.
Interface boundary: D1–D3 are switch-signal interfaces, not UART. Do not connect VCC directly to 5 V.
Frequency2401–2528 MHz
ModulationGFSK
Supply2.2–3.6 V
TX current10.8 mA typical
RX current7.2 mA typical
Sensitivity−88 dBm typical
Pairing capacity32 IDs
Dimensions15.70 × 17.30 mm
Technical specifications
Selection data from Datasheet V1.2.
Use the released datasheet for final circuit, PCB, antenna-clearance and complete-product decisions.
Product type2.4 GHz micro remote-control transceiver module
Operating band2401–2528 MHz · 2483 MHz default
Operating voltage2.2–3.6 V · 3.0 V typical
ModulationGFSK
Reference distanceApprox. 50 m · open line of sight
Receiver sensitivity−88 dBm · typical
Transmitter current10.8 mA · POUT = 0 dBm
TX non-transmitting current6 µA · typical
Receiver current7.2 mA · 1 mA / 0.1 mA options on request
D1–D3 output current15 mA maximum
Pairing capacity32 transmitter IDs
AntennaIntegrated ceramic antenna
PackageSMD · 2.00 mm pad pitch
Dimensions15.70 × 17.30 mm
Pin assignment
Seven module connections
- VCC
- 2.2–3.6 V positive supply; 3.0 V typical.
- D1–D3
- Low-level inputs in transmit mode; high-level outputs in receive mode.
- KL
- Pairing control; quickly double-press to ground to enter pairing.
- MC
- Floating selects momentary; high selects toggle.
- WM
- Floating selects transmit; high selects receive.
- G
- Common ground with the external circuit.
Operating modes
Three defined states
- TransmitWM floating; D1–D3 are low-level trigger inputs.
- Receive momentaryWM high and MC floating; outputs follow the paired key action.
- Receive toggleWM high and MC high; outputs toggle and hold.
Pairings are retained after power-off. Hold the pairing key for more than six seconds to clear stored IDs.
Integration notes
Protect the radio link in the finished product.
Actual range depends on power stability, antenna clearance, enclosure, mounting and local 2.4 GHz interference.
Power supply
Place 0.1 µF decoupling near VCC/G and add 4.7–22 µF bulk capacitance as required.
Signal routing
Keep D1–D3, KL, MC and WM short and away from switching and motor wiring.
Antenna clearance
Keep copper, batteries, shields and metal structures away from the ceramic antenna.
Final validation
Retest range and success rate with the final enclosure, orientation, harness and loads.
Technical downloads
Released file for evaluation and design-in.
The datasheet contains complete specifications, pins, modes, pairing and engineering guidance.
Ling-TR7mini-T Datasheet V1.2
Product overview, electrical specifications, pin assignment, operating modes, dimensions and integration recommendations.
Is this a UART module?
No. D1–D3 are switch-signal inputs or outputs. The module does not expose a UART data interface.
How are transmit and receive selected?
Leave WM floating for transmit mode or drive it high for receive mode.
How many transmitters can one receiver remember?
One receiver stores up to 32 transmitter IDs and retains them after power-off.
Is 50 m guaranteed in the finished product?
No. It is an approximate open-line-of-sight reference. Verify range in the final assembly and installation.
Purchase options
Order modules or start with a development kit.
Remote-control module
Ling-TR7mini-T
SKU: Ling-TR7mini-T_V3.0_S3.2 · Stock: 348,503
US$1.78100–500 · per module
US$1.65501–2,000 · applied in cart
Online purchase quantity: 100–2,000 modules. Request a quote for 2,001 or more.
Development kit
Start testing faster
US$69 / set
- 10 Ling-TR7mini-T modules
- 1 wiring kit
- Shipping calculated at checkout
SKU: SET-Ling-TR7mini-T_V3.0_S3.2 · Stock: 200 sets
Volume order
2,001 modules or more?
Send the target quantity, delivery location and schedule for a quotation.
Request bulk quote →