Melody: Created page with "==Product Name== LC RS485 Lora wireless serial communication module 433M long-distance RF transparent communication SX1278 chip RS485 interface ultra-low power consumption =..."

2024-08-08T06:36:31Z

Created page with "==Product Name== LC RS485 Lora wireless serial communication module 433M long-distance RF transparent communication SX1278 chip RS485 interface ultra-low power consumption =..."

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==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==

<big>''' Front view '''</big> 

[[Image:LC-EM-1307-01.png|500px|]] 

<big>''' Side view '''</big> 

[[Image:LC-EM-1307-02.png|500px|]] 

<big>''' Reverse image '''</big> 

[[Image:LC-EM-1307-03.png|500px|]] 

==Introduction and Explanation==

Size: 22mm * 67mm/12g 

[[Image:LC-EM-1307-04.png|500px|]] 

'''Interface Introduction''' 

[[Image:LC-EM-1307-05.png|500px|]] 

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==

<big>'''1. Burning Program'''</big> 

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

[[Image:LC-EM-1307-06.png|500px|]] 

<big>'''2. Test Results'''</big> 

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 

[[Image:LC-EM-1307-07.png|300px|]] 

[[Image:LC-EM-1307-08.png|500px|]] 

[[Image:LC-EM-1307-09.png|300px|]] 

Test completed!

==User Manual Download==

For more product information, please refer to[https://pan.baidu.com/s/1qebvY1JHP90QSleaVtJcZQ?pwd=1tk7 Baidu Cloud Drive] Extraction code: 1tk7

LC-EM-1307 - Revision history

Melody: Created page with "==Product Name== LC RS485 Lora wireless serial communication module 433M long-distance RF transparent communication SX1278 chip RS485 interface ultra-low power consumption =..."