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ESP8266-485

Overview

This ESP8266 to 485 converter facilitates the connection of 485 devices to ESPHome. It supports a maximum power input of 16V. The PCB has been slightly modified, but the schematic remains unchanged. The reason
for using a 485 module instead of a 485 chip is that the 485 module is cheaper and more cost-effective
. It includes one button, one I/O, and one LED, which can be programmed according to your needs. A download interface is provided for easy program burning.
The attached YAML configuration file is for an air quality sensor; you can modify the device address and register address to suit your requirements.

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-27 20:36:37

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