LoRa1278 Wireless Transparent Transmission Module with UART Serial Communication

Price: 4.5 USD
Trade Term: FOB,EXW
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Basic Info.
  • Brand Name: DreamLNK 
  • Frequency: 433/868/915Mhz 
  • Voltage: 2.1 ~ 3.6V 
  • Distance: 3000m 
  • Size: 32*18*2mm 
  • Sensitivity: -132dBm (810bps) 
  • Technology: LoRa spread spectrum modulation 
  • Transmit power: 100mW (3.3V) 
  • Sleep current: 2.5uA (3.3V) 
  • Model No.: DL-RTS1278M 
  • Place of Origin: Guangdong  
  • Min.Order: 200 Piece/Pieces
Supply Capacity
  • Production Capacity: 100000pcs/Month
  • Packing:Carton Box
  • Delivery Date: 15 days

This DL-RTS1278M RF module is a high-performance wireless serial port LoRa module developed by DreamLnk for wireless meter reading and industrial remote control, it was embedded with high-speed low-power MCU and high-performance spread-spectrum RF chip SX1278, with LoRa spread-spectrum technology, while using efficient cyclic interleaving error correction coding, anti-interference and sensitivity are at the most advanced level in the industry.


It provides multiple channel selections, and can online modify the serial port rate, transceiver frequency, transmit power, RF rate and other parameters. The default frequency is 434.125MHz. The working voltage of DL-RTS1278M is 2.1-3.6V, and only consumes 13mA in the receiving state. DL-RTS1278M has four working modes, which can be arbitrarily switched between the modes. In the 1SEC cycle polling wake-up power saving mode (Polling mode), the reception consumes only tens of microamps. One 3.6V/3.6AH Lithium battery can work for several years and is very suitable for battery-powered systems.


This RF module is a new generation of multi-channel embedded wireless data transmission module, which can set multiple channels, stepping to 1KHz, transmitting power up to 100mW, with product size of 32.1mm x 18.3mm x 6.0mm, very convenient for customers to embed in the system. DL-RTS1278M has low power consumption and is very suitable for battery-powered systems.


DL-RTS1278M RF module adopts spread spectrum modulation and efficient error correction coding, its coding gain is nearly 10dBm higher than traditional modulation methods (such as FSK, GFSK and PSK), and its anti-interference and sensitivity are at the most advanced level in the industry. At the same time, the code also includes reliable error detection capabilities, which can automatically filter out errors and false information, and truly realize a transparent connection, which is nearly double the distance of the traditional module under the same transmission power. Therefore, DL-RTS1278M is suitable for extremely harsh environments and occasions with strict requirements on distance.


● 3000 meters transmission distance (0.81Kbps)

● Working frequency 433MHz, 470MHz, 868MHz, 915MHz optional

● -132dBm = 810bps ultra-high sensitivity

● Maximum 100mW transmit power

● LoRa spread spectrum modulation

● Zero waiting to wake up, with wake-on-radio (WOR) function

● Efficient cyclic interleaving error correction coding

● Four working modes, standby current 2.5uA

● Built-in watchdog, ensure long-term reliable operation



● Wireless automatic meter reading

● Extremely long-distance data communication

● Wireless sensor network

● Industrial automation data collection

● Field data remote control and telemetry

● Various transmitters, flow meters and smart meters

● Building automation and security

● Monitoring and control of mining and petroleum equipment

● Environment, energy saving, temperature monitoring

● Intelligent transportation, intelligent power

● Consumer Electronics

● Intelligent robot

● Street light control


Technical parameters





Module   size

18.3 * 32.3mm (exclude Antenna)  


Place   of origin

All imported components,   origin: Japan, the United States, Germany


Production   Process

SMT lead-free process, AOI   automatic testing, in line with environmental certification standards



1*7*2.54mm, can use universal   board and DuPont cable


Working   frequency

The default is 434.125MHz,   other frequencies can be customized 470-510MHz, 855-885MHz, 900-930MHz


Frequency   step

1KHz setting step



LoRa spread spectrum modulation


Transmit   power

100mW = 3.3V (0-7, 8 levels   adjustable, each level increases by 3dBm, maximum 100mW


Receiving   sensitivity

-132dBm=0.81Kbps, -118.5dBm=18.23K bps


Air transmission rate (occupied   bandwidth)

0.81K/(BW125K) , 1.46K/(BW125K) , 2.6K/(BW125K) ,



Interface   rate

1200 – 115200bps


Interface   verification method



Interface   buffer space

Double 256Bytes


Power   supply



Transmitting   current (typical value)

100mA = 100mW


Continuous   receiving current

13mA = 4.56Kbps, 15mA = 18.23Kbps, in Receiving rate (typical value)


Sleep   current

2.5uA = 3.3V (typical value), Max   4.0uA


Transmission   distance

3000M = 0.81Kbps; 2000M = 9.11K   bps (in an open air)


Antenna   port impedance



Operating   temperature

-40 ~ +85℃


Working   humidity

10% ~ 90% (Relative humidity,   non-condensing)


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Mr. James Wu
Tel: 86-755-29369047
Mobile: 13760215716
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Room 603, Unit C, Zone A, Huameiju Business Center, Xinhu Rd., Bao'an, Shenzhen, Guangdong, China (Mainland)
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