The JZX812D data transmission module is a highly integrated spread spectrum half duplex wireless data transmission module, which uses the "LoRa" high-performance ultra-low power RF chip and high-speed microcontroller.

The JZX812D module provides 16 channels, with the first 8 channels in the 433MHz frequency band and the last 8 channels in the 490MHz frequency band. And it is equipped with professional setting software for users to make parameter changes. The module adopts a transparent transmission method, and users do not need to write setting and transmission programs to transmit data of any size. The module has a small size, wide voltage range, and is convenient to use.

Functional features:
*Working frequency 430-434MHz 489-492 MHz
*Transmission distance 5 kilometers (1200bps)
*Modulation method of LoRa
*Transparent transmission method
*Built in watchdog to ensure long-term reliable operation
*UART/TTL interface
*Convenient and flexible software programming
*A super large 255 byte data buffer
*Suitable for built-in installation




Application scope:
*Automatic meter reading and charging system for water, electricity, gas, and heating
*Intelligent wireless PDA terminal
*Wireless queuing device
*Anti theft alarm
*Smart card
*Medical and electronic instrument automation control
*Intelligent teaching equipment
*Intelligent control of household appliances and lighting
*Wireless suspended scale, electronic scale with wireless transmission

Technical indicators
Modulation method: LoRa
Working frequency: 433MHz/490MHz, customizable for users
Transmission power: 50mW (17dB)
Receiver sensitivity: -139dBm
Emission current:<120mA
Receiving current:<14mA
Sleep current:<1uA
Channel rate: 1200/2400/4800/9600/19200Bit/s Users can customize 300/600Bit/s
Serial port speed: 1200/2400/4800/9600/19200Bit/s, customizable for users
Interface type: TTL
Interface data format: 8E1/8N1/8O1 User customizable
Working power supply: DC 2.8~3.6V
Working temperature: -20 ℃~75 ℃
Working humidity: 10% to 90% relative humidity, no condensation
Dimensions: 27mm * 18mm * 2.5mm
Interworking model: JZX811 JZX812D JZX812 JZX813 JZX814 JZX815 JZX818