8-Channel I2C Relay Board with XL9535 | Type-C USB | Dual Power (3.3V & 5V) | EMR SPDT | Compatible with Arduino, ESP32, Raspberry Pi | DIN Rail Ready | IoT & Home Automation

8 I2C-Controlled Relay Channels (EMR Type): Built around the reliable XL9535 GPIO expander chip, providing precise control via I2C interface. Supports up to 10A per channel for AC/DC loads. Dual Power Support - 3.3V & 5V: Isolate logic (3.3V) and relay (5V) power for cleaner signals and stable operation. Ideal for both 3.3V (ESP32, Pi) and 5V (Arduino) microcontrollers. Compact, DIN Rail Friendly Design: Measuring 150mm x 72mm, this board includes a vertical USB-C port and marked DIP switches for I2C address configuration - perfect for industrial enclosures. Versatile Compatibility: Works Compatible with Arduino, ESP32, Raspberry Pi, and other I2C-enabled controllers. Great for smart homes, industrial automation, and IoT projects using Home Assistant or ESPHome. Robust & Reliable Build: Professionally designed PCB with high-isolation SPDT relays (10A@250VAC), rated for 100,000+ electrical and 10M+ mechanical operations. Comes in a protective box for secure delivery.