G NiceRF 433MHz SPI Interface LoRa1278 Wireless Transceiver RF Transmitter Receiver Module LoRa Module 433MHz

Product Overview

Description

LoRa1278 adopts Semtech RF transceiver chip SX1278, which adopts LoRa TM Spread Spectrum modulation frequency hopping technique. The features of long distance and high sensitivity (-139 dBm) make this module perform better than FSK and GFSK module. Multi-signal won't affect each other even in crowd frequency environment; it comes with strong anti-interference performance.

Specifications: 

Features:

* Frequency Range: 433 
         (Customizable 137-1020 MHZ)
* Sensitivity up to -139 dBm 
* Maximum output power: 20dBm
* 10.3mA@receiver mode
* Sleep current <200nA 
* Data transfer rate: @FSK,1.2-300kbps
* @Lora TM,0.018-37.5kbps
* Lora TM ,FSK,GFSK and OOK Modulation mode 
* 1.8-3.7 V Power supply
* 127 dB Dynamic Range RSSI
* Packet engine up to 256 bytes with CRC
* Operating Temperature Range: -40 ~ + 85 °C 
* Built-in temperature sensor and low battery indicator
* Excellent blocking immunity

Application:

* Remote control
* Remote meter reading
* Home security alarm and remote keyless entry          
* Industrial control
* Home automation remote sensing
* Individual data records                                             
* Toys control
* Sensor network
* Tire pressure monitoring
* Health monitoring
* Wireless PC peripherals
* Tag reading and writing

Schematic

Pin definition

Mechanism dimension

Accessories: 

 Antenna:The antenna is important in the communication. For this module, the match impedance is 50 Ohm. We have many kinds of antenna for customer to choose, please contact the corresponding sales engineer for help, or find the antenna in our website.

USB Bridge board:

The USB Bridge is useful for customers to configure the parameters and simply to do communication test with PC. There are 3 types of USB Bridge, which are SU108-TTL, SU108-232, SU108 - 485. SU108 -TTL is for TTL Interface, SU108-232 is for 232 Interface, SU108 - 485 is for 485 Interface.

Product show:

a) Why module can not communicate properly?
1) The power supply is connected incorrectly and the module is not working properly;
2) 2) Check whether the frequency band of each module and other RF parameters are consistent;
3) 3) Is the module d1) Power supply ripple is 2) The antenna types do not match, or not properly ins3) The surrounding environment is harsh, strong interference s4) Surrounding co-channel interferenc