Eight Channel I2C Relay Module For Arduino Raspberry Pi ESP32 And Home Assistant With LED Indicators SPDT Contacts 10A Peak AC DC Voltage Control And IO Expander Built For Plug And Play Smart Home Projects

8-Channel I2C Relay Module for Arduino and Home Assistant
✔️ Single module, 8-channel I2C relay board with SPDT, 10A peak

This 8-channel I2C relay module lets you switch eight SPDT relays from a single I2C bus, ideal for plug-and-play smart home automations, Raspberry Pi, Arduino, ESP32 and Home Assistant integrations.

✅ Up to 8 boards can be connected to the I2C bus line. The module uses a PCF8574 or PCF8574A expander.
✅ Addresses selectable: 0x20-0x27 or 0x38-0x3F via DIP switch
✅ SPDT contacts: normally open, common, normally closed
✅ 10A peak per relay; 100-240V AC control, 50/60Hz
✅ Logic levels 3.3V/5.0V; SDA/SCL pull-ups to VDD
✅ Dielectric strength 1,500 VAC; mechanical life 10,000,000 cycles
✅ Electrical life 100,000 cycles at rated load
✅ Board dims 72 mm x 150 mm; DIN-rail compatible 100 mm
✅ LED indicators on each channel for quick status

💡 What is an 8-channel I2C relay module used for in smart home projects?

This handy device makes it easy to control mains loads from software and home automation platforms.

- Handy for automating lights, fans, pumps, and other devices - Supports multiple modules on one I2C bus with selectable addresses - SPDT outputs provide NO/NC options for flexible wiring - Works with Arduino, Raspberry Pi, ESP32, and Home Assistant integrations