WiFi ESP32 Module with 8 Relays & 8 Opto Inputs

WiFi ESP32 Module with 8 Relays & 8 Opto Inputs

SKU: ESP32SR88
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Product description

The ESP32SR88 is a WIFI connected I/O controller using the popular ESP32. It provides 8 relays capable switching up to 1A 30V and 8 digital inputs with optical isolation.

You can control the module remotely in one of the following ways:

  • A built in webpage,
  • HTML commands,
  • MQTT commands or
  • TCP/IP plain text commands


If you set port forwarding in your router, you will be able to control the module via the internet.

The ESP32LR88 is configured by connecting a USB cable to your PC and running a terminal program.

The relay module has an ESP-WROOM-32 which you may program with your own software.

Required power supply for the board is 12v dc, 1A.

More information is available on the website of Devantech.

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