{"id":8050826215604,"title":"8-Channel I2C IIC Relay Board XL9535, USB-C, Dual Power 3.3V\/5V, SPDT 10A EMR, DIN-Rail Ready, Multi-Board I2C Expansion Expandable, Compatible with Arduino ESP32 Raspberry Pi ESPHome \u0026 Home Assistant 8 CH EMR Type C","handle":"8-channel-i2c-iic-relay-board-xl9535-usb-c-dual-power-3-3v-5v-spdt-10a-emr-din-rail-ready-multi-board-i2c-expansion-expandable-compatible-with-arduino-esp32-raspberry-pi-esphome-home-assistant-8-ch-emr-type-c","description":"\u003ch3\u003e8-Channel I2C IIC Relay Board XL9535, USB-C, Dual Power 3.3V\/5V, SPDT 10A EMR, DIN-Rail Ready, Multi-Board I2C Expansion Expandable, Compatible with Arduino ESP32 Raspberry Pi ESPHome \u0026amp; Home Assistant\u003c\/h3\u003e\r\n\u003cp id=\"b\"\u003eUnlock professional-grade automation with this 8-Channel I2C Relay Board,\r\npowered by the XL9535 I²C GPIO expander and high-quality SPDT electromagnetic\r\nrelays. Designed for smart home panels, industrial machines, greenhouse\r\nsystems and IoT test benches, this board delivers stable performance, clean\r\nI²C control and flexible power options. Each relay supports 10A @ 250VAC or\r\n30VDC, making it perfect for switching pumps, motors, solenoids, fans, valves,\r\nand lighting. Only SDA, SCL and power are needed for control, leaving your\r\nMCU’s GPIO pins free for other tasks. Designed for Modern 3.3V \u0026amp; 5V\r\nMicrocontrollers To ensure reliable I²C communication, the logic side must\r\nmatch your MCU voltage: 5V Mode (Single Power) – Use one 5V supply for both\r\nthe XL9535 and the relays. Ideal for Arduino UNO\/MEGA. Dual Power Mode (3.3V +\r\n5V) – For ESP32, ESP8266 and Raspberry Pi: supply 3.3V to the XL9535 logic and\r\n5V to the relay coils. This keeps I²C safe while maintaining strong relay\r\noperation. Improved Stability Through Power Isolation Relays generate\r\nelectrical noise when switching. By separating logic power (VIN\/GND1) from\r\nrelay power (5V\/GND2), the board reduces voltage dips, prevents MCU resets and\r\nensures glitch-free I²C communication—especially important in IoT and\r\nautomation environments. I2C Addressing \u0026amp; Multi-Board Expansion The onboard\r\nDIP switches allow selecting any address between 0x20 and 0x27, providing 8\r\nunique I²C addresses. This lets you connect up to 8 relay boards on a single\r\nI²C bus, giving you control of up to 64 relays using only SDA and SCL.\r\nInstallation-Ready Hardware The compact 150 × 72 mm PCB fits neatly into DIN-\r\nrail enclosures. A vertical USB-C connector provides convenient power during\r\nbench testing or permanent installation. High-quality screw terminals and\r\nclearly marked pins make wiring simple and reliable. Perfect For: Home\r\nAssistant \/ ESPHome automation Smart agriculture \u0026amp; greenhouse control\r\nIndustrial automation \u0026amp; machine IO IoT switchboards \u0026amp; test benches Example\r\ncode for Arduino \u0026amp; Raspberry Pi is available on GitHub of IOTMUG, with\r\nadditional support provided via Amazon messages.\u003c\/p\u003e \r\n\r\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\r\n \u003cul class=\"a\"\u003e\r\n \u003cli\u003e8 I2C-Controlled EMR Relays (10A Rated) Features eight SPDT mechanical relays driven by the XL9535 GPIO expander. Each channel switches up to 10A @ 250VAC or 30VDCideal for lighting, pumps, motors and AC\/DC loads.\u003c\/li\u003e\r\n \u003cli\u003eDual Power Mode for 3.3V \u0026amp; 5V MCUs Use single-5V mode for Arduino, or dual-power mode for ESP32\/ESP8266\/Raspberry Pi (3.3V for logic, 5V for coils). Ensures safe I2C voltage levels and strong relay performance. Type C \/ USB-C Port available to power to board for your convenience\u003c\/li\u003e\r\n \u003cli\u003eNoise-Reduced Stable Operation Separate logic and relay power rails (VIN\/GND1 vs. 5V\/GND2) prevent voltage dips, MCU resets, and I2C communication errorscritical in smart home and industrial systems.\u003c\/li\u003e\r\n \u003cli\u003eMulti-Board I2C Expansion (Up to 64 Relays) DIP switches allow selecting 8 unique I2C addresses (0x200x27). Daisy-chain up to 8 boards on one SDA\/SCL bus, enabling 64 individually addressable relay channels.\u003c\/li\u003e\r\n \u003cli\u003eDIN-Rail Friendly \u0026amp; Maker Ready Includes USB-C power input, high-quality screw terminals, clear labeling and a compact 15072mm design. Fully compatible with Arduino, ESP32, ESP8266, Raspberry Pi, Home Assistant and ESPHome. Example code available on GitHub.\u003c\/li\u003e\r\n \u003cli\u003eOn board:Includes easy-to-use connectors and detailed instructions, making installation and setup quick and hassle-free for electronics enthusiasts of all levels\u003c\/li\u003e\r\n \u003c\/ul\u003e","published_at":"2026-05-04T17:38:58+10:00","created_at":"2026-05-04T17:38:54+10:00","vendor":"IotMug","type":"Light Switches","tags":["industrial_April2026"],"price":16000,"price_min":16000,"price_max":16000,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":44214931849396,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"B0FBCB66D9","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"8-Channel I2C IIC Relay Board XL9535, USB-C, Dual Power 3.3V\/5V, SPDT 10A EMR, DIN-Rail Ready, Multi-Board I2C Expansion Expandable, Compatible with Arduino ESP32 Raspberry Pi ESPHome \u0026 Home Assistant 8 CH EMR Type C","public_title":null,"options":["Default Title"],"price":16000,"weight":168,"compare_at_price":null,"inventory_management":"shopify","barcode":"I2cTypCRelay","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/auspowers.com\/cdn\/shop\/files\/B0FBCB66D9.jpg?v=1777993055","\/\/auspowers.com\/cdn\/shop\/files\/81fDgGEZXhL.jpg?v=1777880337","\/\/auspowers.com\/cdn\/shop\/files\/81wz8IYCQQL.jpg?v=1777880337","\/\/auspowers.com\/cdn\/shop\/files\/71m-L7KsgZL.jpg?v=1777880337","\/\/auspowers.com\/cdn\/shop\/files\/81LaloSNSoL.jpg?v=1777880337","\/\/auspowers.com\/cdn\/shop\/files\/81KMfv-H1AL.jpg?v=1777880337","\/\/auspowers.com\/cdn\/shop\/files\/818rOFLjOJL.jpg?v=1777880337","\/\/auspowers.com\/cdn\/shop\/files\/71NZIedPMmL.jpg?v=1777880337","\/\/auspowers.com\/cdn\/shop\/files\/81caXgSeA0L.jpg?v=1777880337"],"featured_image":"\/\/auspowers.com\/cdn\/shop\/files\/B0FBCB66D9.jpg?v=1777993055","options":["Title"],"media":[{"alt":"[Australia - 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AusPower] - 8-Channel I2C IIC Relay Board XL9535, USB-C, Dual Power 3.3V\/5V, SPDT 10A EMR, DIN-Rail Ready, Multi-Board I2C Expansion Expandable, Compatible with Arduino ESP32 Raspberry Pi ESPHome \u0026 Home Assistant 8 CH EMR Type C ","id":32911480258740,"position":9,"preview_image":{"aspect_ratio":0.513,"height":2560,"width":1313,"src":"\/\/auspowers.com\/cdn\/shop\/files\/81caXgSeA0L.jpg?v=1777880337"},"aspect_ratio":0.513,"height":2560,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/81caXgSeA0L.jpg?v=1777880337","width":1313}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003e8-Channel I2C IIC Relay Board XL9535, USB-C, Dual Power 3.3V\/5V, SPDT 10A EMR, DIN-Rail Ready, Multi-Board I2C Expansion Expandable, Compatible with Arduino ESP32 Raspberry Pi ESPHome \u0026amp; Home Assistant\u003c\/h3\u003e\r\n\u003cp id=\"b\"\u003eUnlock professional-grade automation with this 8-Channel I2C Relay Board,\r\npowered by the XL9535 I²C GPIO expander and high-quality SPDT electromagnetic\r\nrelays. Designed for smart home panels, industrial machines, greenhouse\r\nsystems and IoT test benches, this board delivers stable performance, clean\r\nI²C control and flexible power options. Each relay supports 10A @ 250VAC or\r\n30VDC, making it perfect for switching pumps, motors, solenoids, fans, valves,\r\nand lighting. Only SDA, SCL and power are needed for control, leaving your\r\nMCU’s GPIO pins free for other tasks. Designed for Modern 3.3V \u0026amp; 5V\r\nMicrocontrollers To ensure reliable I²C communication, the logic side must\r\nmatch your MCU voltage: 5V Mode (Single Power) – Use one 5V supply for both\r\nthe XL9535 and the relays. Ideal for Arduino UNO\/MEGA. Dual Power Mode (3.3V +\r\n5V) – For ESP32, ESP8266 and Raspberry Pi: supply 3.3V to the XL9535 logic and\r\n5V to the relay coils. This keeps I²C safe while maintaining strong relay\r\noperation. Improved Stability Through Power Isolation Relays generate\r\nelectrical noise when switching. By separating logic power (VIN\/GND1) from\r\nrelay power (5V\/GND2), the board reduces voltage dips, prevents MCU resets and\r\nensures glitch-free I²C communication—especially important in IoT and\r\nautomation environments. I2C Addressing \u0026amp; Multi-Board Expansion The onboard\r\nDIP switches allow selecting any address between 0x20 and 0x27, providing 8\r\nunique I²C addresses. This lets you connect up to 8 relay boards on a single\r\nI²C bus, giving you control of up to 64 relays using only SDA and SCL.\r\nInstallation-Ready Hardware The compact 150 × 72 mm PCB fits neatly into DIN-\r\nrail enclosures. A vertical USB-C connector provides convenient power during\r\nbench testing or permanent installation. High-quality screw terminals and\r\nclearly marked pins make wiring simple and reliable. Perfect For: Home\r\nAssistant \/ ESPHome automation Smart agriculture \u0026amp; greenhouse control\r\nIndustrial automation \u0026amp; machine IO IoT switchboards \u0026amp; test benches Example\r\ncode for Arduino \u0026amp; Raspberry Pi is available on GitHub of IOTMUG, with\r\nadditional support provided via Amazon messages.\u003c\/p\u003e \r\n\r\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\r\n \u003cul class=\"a\"\u003e\r\n \u003cli\u003e8 I2C-Controlled EMR Relays (10A Rated) Features eight SPDT mechanical relays driven by the XL9535 GPIO expander. Each channel switches up to 10A @ 250VAC or 30VDCideal for lighting, pumps, motors and AC\/DC loads.\u003c\/li\u003e\r\n \u003cli\u003eDual Power Mode for 3.3V \u0026amp; 5V MCUs Use single-5V mode for Arduino, or dual-power mode for ESP32\/ESP8266\/Raspberry Pi (3.3V for logic, 5V for coils). Ensures safe I2C voltage levels and strong relay performance. Type C \/ USB-C Port available to power to board for your convenience\u003c\/li\u003e\r\n \u003cli\u003eNoise-Reduced Stable Operation Separate logic and relay power rails (VIN\/GND1 vs. 5V\/GND2) prevent voltage dips, MCU resets, and I2C communication errorscritical in smart home and industrial systems.\u003c\/li\u003e\r\n \u003cli\u003eMulti-Board I2C Expansion (Up to 64 Relays) DIP switches allow selecting 8 unique I2C addresses (0x200x27). Daisy-chain up to 8 boards on one SDA\/SCL bus, enabling 64 individually addressable relay channels.\u003c\/li\u003e\r\n \u003cli\u003eDIN-Rail Friendly \u0026amp; Maker Ready Includes USB-C power input, high-quality screw terminals, clear labeling and a compact 15072mm design. Fully compatible with Arduino, ESP32, ESP8266, Raspberry Pi, Home Assistant and ESPHome. Example code available on GitHub.\u003c\/li\u003e\r\n \u003cli\u003eOn board:Includes easy-to-use connectors and detailed instructions, making installation and setup quick and hassle-free for electronics enthusiasts of all levels\u003c\/li\u003e\r\n \u003c\/ul\u003e"}