37L2 wifi cloud serial port module remotely burns programs to STC51/STM32/ESP8266 across other provinces 485-RTU remote group

cortex_M3

37L2 wifi cloud serial port module remotely burns programs to STC51/STM32/ESP8266 across other provinces 485-RTU remote group [Copy link]

37L2 module & STC-ISP remote programming STC MCU

37L2 module & prawn serial port tool remotely burn STM32F103

37L2 module & ESP8266_FlashLoader remotely burn ESP8266

Multiple 37L2 modules remote 485-RTU group transfer 100,000 (cumulative) bytes without loss test video

cortex_M3

Usage environment: Wi-Fi router or mobile phone hotspot connected to the external network;

Support baud rate: 1200~921600;

Supported data bits: 5, 6, 7, 8;

Supported check digits: none, even, odd, mark, space;

Support stop bits: 1, 1.5, 2;

Support data packet: 2K bytes;

The upper limit of device nodes per group: 100 million;

Support 485-ASCII and 485-RTU;

-------------------------------------------------- ------------------

Ready to use, no need to preset parameters on a computer;

Easy to operate, network configuration, group joining and settings are all completed in one step;

It is easy to add or remove devices from a group, which can be done with one click and takes effect immediately.

The baud rate, data bit, check bit, and stop bit of any node are allowed to be different, which facilitates the coordinated group communication of various devices.

No need to download or install software, no need to log in or register, no need for documentation, just open WeChat and you can use it;

During normal module communication, data can be viewed on a mobile phone (similar to a serial port tool);

-------------------------------------------------- ----------------

cortex_M3

The small board is the 37L2 module, and the green board is the evaluation board

cortex_M3

Easy remote programming without changing the host computer ISP and MCU bootloader

cortex_M3

The method of joining or removing from 37L2 group is simple and effective immediately.

Each user has his own independent group. Adding two modules to the group can realize three functions: serial port server/remote burning/remote debugging;

By adding multiple modules to the group, remote 485-RTU multi-node communication can be achieved;

cortex_M3

Small board connection diagram, core chip RDA5981/RTL8710/ESP8266 universal

cortex_M3

Yesterday at noon, I sorted out and summarized the questions raised by netizens for easy reading

cortex_M3

cortex_M3 posted on 2022-5-31 10:35 Yesterday at noon, I sorted out and summarized the questions raised by netizens for easy reading

These are all questions and answers related to the 37L2 module . They are constantly being added and updated. Follow Ligongyun or scan the QR code on the back of the evaluation board to view them.