Eletechsup Manuals & User Guides

Eletechsup is a specialized electronics manufacturer established in 2012, focusing on the design and production of remote I/O modules, digital and analog acquisition boards, and industrial communication devices. Their product lineup extensively covers Modbus RTU relay boards, RS485 sensors (temperature, humidity), and expansion modules for popular microcontrollers like ESP32, Arduino, and PLC systems.

Catering to both industrial automation professionals and smart home hobbyists, Eletechsup provides cost-effective solutions for system integration, telemetry, and remote control. Their components are widely used in environmental monitoring, factory automation, and custom IoT projects, offering reliable connectivity through standard protocols like Modbus RTU and UART.

• How do I communicate with Eletechsup relay modules?

  Most Eletechsup relay modules utilize the Modbus RTU protocol over an RS485 interface. You will typically need a USB-to-RS485 adapter and serial debugging software (like Modbus Poll) to send hexadecimal commands to the device addresses.

• What is the default baud rate for Eletechsup RS485 modules?

  The default communication settings are commonly 9600 bps, 8 data bits, no parity, and 1 stop bit, though high-speed modules may default to other rates. Always refer to the specific device datasheet for confirmation.

• Can Eletechsup boards be used with Arduino or ESP32?

  Yes, many Eletechsup products are designed as expansion boards specifically for Arduino and ESP32 platforms, or can be controlled by them via standard UART or RS485 connections.