LC-EM-1307

Product Name

LC RS485 Lora wireless serial communication module 433M long-distance RF transparent communication SX1278 chip RS485 interface ultra-low power consumption

About

The LC RS485 Lora wireless serial communication module uses high-performance STM32F103C8T6 as the MCU, with onboard SP485 chip and SX1278 communication chip,
transmitting at 433MHz frequency, combined with LoRa technology.It can achieve ultra long distance wireless transmission of 2km in open environments,
enabling continuous data exchange between the sending and receiving ends in half duplex mode.
The module supports RS485 interface communication and is suitable for various serial devices.At the same time,
it has the characteristics of ultra-low power consumption, strong anti-interference ability, long transmission distance, and stable communication.

View

Front view

Side view

Reverse image

Introduction and Explanation

Size: 22mm * 67mm/12g

Interface Introduction

1. Power supply terminal: 5V power supply

2. RS485 interface

3. UART ports: from left to right: 5V-3V3-TX-RX-GND

4. BOOT0: Use jumper caps to connect 3V3 for burning mode and GND for running mode

5. RX and TX communication indicator lights

6. Reset key

7. Power indicator light

8. Programmable LED lights

9. SP485EEN chip

10. Lora Communication Module: SX1278

11.MCU：STM32F103C8T6（LQFP48）

Functional Features

• Strong anti-interference ability, long transmission distance, ultra long wireless transmission distance of 2km in open environments

• 415MHz-450MHz adjustable transmission frequency

• Continuous exchange of data packets in half duplex mode

• Onboard SP485 chip and SX1278 communication chip

• Support RS485 communication interface

• Ultra low power consumption, stable communication

Instructions for use

1. Burning Program

Two modules are required for communication, with the receiving end burning RX receiving code and the sending end burning TX sending code

2. Test Results

After powering on the receiving module, the programmable LED light will turn on

Find a USB to RS485 module and connect it to the sending end module (A+connected to A+, B - connected to B -).
Connect the 485 module to the computer, open the serial debugger,
and send "LC-down". When the receiving end receives the data, the LED light will turn off;
Send 'LC_open' again, and the LED will light up again after the receiving end receives the data

Test completed!

User Manual Download

For more product information, please refer toBaidu Cloud Drive Extraction code: 1tk7