Seeed XIAO 6-Channel Wi-Fi 5V DC Relay (ESP32-C6)

The Seeed XIAO 6-Channel Wi-Fi 5V DC Relay is a compact smart relay board designed to control six independent devices (10A 30VDC max recommended).

Powered by the XIAO ESP32-C6 (pre-soldered to the module), it supports Wi-Fi, Bluetooth, and Zigbee, allowing flexible integration into a wide range of smart home systems. It is fully compatible with Home Assistant (via pre-installed ESPHome firmware) and requires no additional hub.

You can manage each relay channel independently, monitor status in real time, and configure local or cloud-based control—ideal for low-voltage automation such as lighting, fans, and pumps. Two Grove interface ports are also onboard for adding additional sensors or actuators.

The module comes in a 3D printed enclosure (PLA), which is also available on Thingiverse if you would like to print your own in a different colour filament or make customisations.

Note: A USB-C cable is required but not included.

Features

• Based on XIAO ESP32-C6 (pre-soldered to module)
• 6 independent 5V DC relay channels
• Built-in Wi-Fi connectivity
• Home Assistant support via pre-installed ESPHome firmware
• Two Grove interface ports
• Remote and local control support
• Real-time relay status monitoring
• Fully supports Arduino IDE
• Ideal for DIY home automation projects

Specifications

Processor	XIAO ESP32-C6
Input voltage (USB-C)	DC 5V (For XIAO)
Interfaces	2.4GHz Wi-Fi 6, 1x IIC (Grove), 1x UART (Grove), USB (Type-C)
Outputs	6 Relay Channels, each with COM, NC, NO 10A 30VDC (recommended) 10A 250VAC
Dimensions	97mm × 92mm × 31mm
Enclosure	3D Printed Colour: Black Material: PLA

Resources

• Getting Started with the 6-Channel Wi-Fi Relay Module in Home Assistant
  
• Thingiverse case file
• Product number: Seeed 114993588

Pinout

GPIO Mapping

XIAO GPIO	Relay Channel
GPIO2	Relay 1
GPIO21	Relay 2
GPIO1	Relay 3
GPIO0	Relay 4
GPIO19	Relay 5
GPIO18	Relay 6

Package Contents

• 1 x XIAO 6-Channel Wi-Fi 5V DC Relay

USB-C cable not included