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UART Wireless Transparent Transmission Module 100mW

High performance FSK wireless transparent transmission module, it is a 100mW RF Transparent Transmission Module with UART Protocol and System-on-Chip system, can work in 433/470/868/915MHz ISM band
  • DL-TRP
  • 433/868/915Mhz
  • FSK
  • 1-20dbm
  • 2.1V-3.6V
  • - 117dbm
  • 2100m
  • 32*18.5*2mm

100mW UART Wireless Transparent Transmission Module 

DL-TRP Series RF Modules are high performance FSK wireless transparent transceiver modules with low-cost. They can work in 433 / 470 / 868 / 915MHz ISM band, compact in size, but large power, high sensitivity, long transmission distance, and high communication rate; they can automatically complete communication protocol conversion and data receive control within the module. The module provides UART serial data interface, which enables wireless data transmission by providing only serial data. Users can also flexibly configure the serial rate, operating frequency, transmission power, communication rate, modulation frequency offset, receiving bandwidth and other parameters of the module according to their own needs. DL-TRP series modules can be widely used in all kinds of wireless data transmission fields, and are ideal for designing wireless data transmission products.


● Low cost, high performance, and high reliability;

● FSK modulation, half duplex communication, strong anti-interference ability

● 433 / 470 / 868 / 915MHz ISM frequency band, no need to apply for frequency point

● The maximum output power is 100mW (20dBm), and the output power can be adjusted nonlinearly in the range of 1-20dbm;

● Receiving sensitivity: - 117dbm;

● Transmission working current: 100mA@20dBm, 40mA@14dBm

● Receiving working current: 25mA

● Power consumption in standby mode: 1uA

● Standard TTL level UART serial interface, can be extended to RS232 interface or other interfaces

● The working frequency can be set, frequency division multiplexing for multiple modules available, without mutual interference

● The modulation frequency offset and receiving bandwidth are optional, which can be configured by yourself through software

● Communication protocol conversion and RF transceiver switching are completed automatically, and users do not need to intervene, which is simple and easy to use

● The communication rate is 1.2kbps-115.2kbps, which can be configured by software

● Provide enable control signal, and the duty cycle is controlled by yourself to meet different requirements

● RSSI function, LED indication function

● Long transmission distance: more than 1km in open area (without interference)

● Compact size: 16*20*2mm, SMD package, easy to install

● No debugging needed when production

Download Center

DL-TRP Specification V1.0 do

Technical Parameter

Limit value

Parameters Min. Max. Unit
Working Voltage (VCC) -0.3 +3.6
storage temperature -40 +150
Working temperature  -40 +85
Reflow temperature 


Parameters Condition
Min.  Typi.
Max. Unit
Power voltage
2.4 3.3 3.6 V
Working current
RX <15mA  25 85
Sleep current

434 454 MHz
IO Port voltage
Vss-0.3 470 490
Working temperature
-30  868 889


DC characteristics

RF characteristics (Unless otherwise stated, the temperature is 25 ℃, and VCC is 3.3V)

Item Characteristics

Standard parameter value

Min. Typi. Max.

1 Application frequency range  240,434.125,930 MHz
2 Receive sensitivity -121 dBm
3 Transmit power +1,-,20 dBm
4 Air transmission rate  1K,-,40k Bps
5 Modulation mode GFSKGFSKGFSK

20K frequency deviation

6 Interface rate 1.2,-,20 Kbps
7 Harmonic power -45,-,-35  dBm
8 Communication distance 1500,-,2000 M
9 Sleep power consumption 4 uA
10 Crystal accuracy  10 PPM



Pin number Pin name Pin direction Remark
1 GND Public Ground
2 VCC 2.1V-3.6V

nput (With weak pull-up), parameter setting A, pull-up resistor 47K

4 RXD Input (with weak pull-up) pull-up resistor 47K
5 TXD Output Output
6 AUX Output Output
7 SET_B Input (very weak pull-up) 10M
8-10 GND Ground or floating, fixed position
9 ANT Antenna output pin



Typical application

Wireless Data Acquisition, Wireless Data Communication, Wireless Data Monitoring and Transmission, Wireless Voice/Audio Transmission, Wireless Sensoring; Wireless Remote Control System; Wireless Game Controller, Remote Control Toys; Wireless Keyboard, Wireless Mouse; Wireless remote control for electronic consumer products; Wireless Alarm & Security Control System; Wireless Sensor Networking, Automatic Data Collection; Industrial Remote Control, Intelligent Control System, Smart Home, Home Automation, Home Appliance Control, Building and Residential (smart home) Control, Smart City, Logistics Tracking, Warehouse Patrols, RFID (radio frequency identification); Telemetry, Automatic (Water, Electricity, Gas) Meter Reading system; Remote LED, Remote Curtain; Remote control that supports radio frequency (RF) technology

Product Tags

RF Transmit module, FSK RF module, RF modules, Wireless data transmission, RF Transmitter, RF Receiver, RF Transmit module, RF Receive module, Wireless Transceiver Module, FSK Module, FSK Transceiver Module, Bluetooth Module, UART Serial Module, UART Transceiver module