Ling-T1mini | 433.92 MHz ASK Remote Control Transmitter Module

Ling-T1mini transmitter module photographed against a centimeter scale

500–1,000 · MOQ 500US$0.68per module

1,001–10,000US$0.60per module

10,000+ · Volume orderRequest quoteFor production quantities

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Typical applications

For compact, battery-powered remote-control terminals.

Ling-T1mini combines a 433.92 MHz ASK transmitter and FB1527 encoder in a miniature module.

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Wireless remotes

Handheld keys and compact control transmitters.

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Doorbells & switches

Low-rate trigger transmission for home devices.

Alarm triggers

Battery-powered security and call-button terminals.

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Small appliances

Lights, fans and simple wireless control products.

How it works

Button input to encoded one-way RF transmission.

K0 and K2 trigger individual key values; K1 combines with either input to form two additional key values.

K0, K1, K2 inputsInternal pull-up · low-level triggerFB1527

→433.92 MHz
ASK/OOK · 2–10 kbps

Compatible receiver1527-type decodingRF link

Button actionTransmitted key valueReceiver output / note

K0 low4R1mini D0; switch or serial mode

K2 low1R1mini D1; switch or serial mode

K0 + K1 low8Serial-key output; no separate R1mini switch output

K1 + K2 low2Serial-key output; no separate R1mini switch output

Application boundary: Ling-T1mini is a one-way ASK remote-control transmitter, not a UART module or bidirectional data link. The approximately 80 m reference range is for open-field line-of-sight conditions; validate the final receiver, antenna, power supply and enclosure. Use Ling-R1mini for two-channel switching or serial key output; use Ling-R1 or Ling-R1pro when four independent switch outputs are required. Other receivers must be checked for frequency, pulse width, bit order, repeat frames and key-value mapping.

Frequency433.92 MHz

Operating voltage2.2–3.6 V

ModulationASK/OOK

EncodingFB1527

Transmit power10 dBm typical

Transmit current10 mA typical

Standby currentBelow 1 µA

Operating temperature−20 to +70 °C

Application boundaries

Match the antenna and power path to the final product.

Actual transmission performance depends on receiver sensitivity, antenna, battery internal resistance, enclosure, orientation and interference.

Good starting fit

✓ Four defined key values via K0, K2 and combinations with K1.

✓ FB1527-compatible remote-control receivers.

✓ Matched 433.92 MHz antenna on the 50 Ω A pin.

✓ Low-power battery-operated trigger products.

Check carefully

! Do not exceed the 2.2–3.6 V operating range.

! Keep antenna clearance from batteries, metal and noise sources.

! Validate button timing for combination-key recognition.

! Verify range and reliability in the final enclosure.

Technical specifications

Confirmed selection data for Ling-T1mini.

The released Ling-T1mini Datasheet V1.1 is the authority for final circuit and antenna decisions.

Operating frequency433.92 MHz

Operating voltage2.2–3.6 V · 3.0 V typical

ModulationASK/OOK

Transmission rate2–10 kbps · FB1527 encoded data

EncodingFB1527 random address code

Supported key values4

Transmit power10 dBm typical at 3.0 V

Transmit current10 mA typical at 3.0 V

Standby currentBelow 1 µA

Reference rangeApproximately 80 m open field, line of sight

Operating temperature−20 to +70 °C

Antenna interface50 Ω · matched 433.92 MHz antenna

Dimensions15.78 × 13.86 × 3.00 mm

Ling-T1mini transmitter module front view

Pin assignment

Seven module connections

VCC: Power positive; 2.2–3.6 V supply.
K2: Ground-triggered button input; key value 1 alone.
K1: Combination-key input; use with K0 or K2.
K0: Ground-triggered button input; key value 4 alone.
GND, G: Power ground; connect both to system ground.
A: 50 Ω antenna interface for a matched 433.92 MHz antenna.

Evaluation

Validate the remote-control transmitter

1 · SupplyConnect a 3.0 V supply and local 0.1 µF decoupling.
2 · Key inputsTrigger K0, K2 and the defined combinations to ground.
3 · RF pathConnect a matched 433.92 MHz antenna to A.
4 · Final productTest battery voltage, enclosure, orientation and range.

Technical downloads

File for evaluation and design-in.

Ling-T1mini Datasheet V1.1

Download Datasheet ↓

Is Ling-T1mini a UART transmitter?

No. It is a one-way ASK remote-control transmitter with FB1527 encoding.

How are button inputs triggered?

K0 and K2 are low-level, ground-triggered inputs. K1 is used together with K0 or K2 for the two combination key values.

Can I connect the antenna directly to pin A?

Use a matched 433.92 MHz antenna and keep the RF connection short. Verify performance in the final product.

Which receivers are compatible?

Use Ling-R1mini, Ling-R1, Ling-R1pro, or another receiver compatible with 1527-type encoding.

Purchase options

Order modules or start with a development kit.

Transmitter module