Meet XIAO 6-Channel Wi-Fi DC Relay and A Complete Guide to DC AC Relay Selection

By Carla Guo 1 month ago

In this blog, we’ll explore the key features of our latest addition to the Seeed Studio XIAO Gadgets: XIAO 6-Channel Wi-Fi 5V DC Relay. We’ll also dive into the fundamental differences between DC and AC relays, and provide a comprehensive comparison with other relay products in the Seeed Studio XIAO Ecosystem (including the XIAO 2-Channel Wi-Fi AC Relay and the Relay Add-On Module for XIAO). This guide will help you select the perfect relay solution for your specific application needs.

“I’m looking for a Wi-Fi relay that works with Home Assistant and runs on 12V.”

“I prefer local control only.”

“There are so many relays on Aliexpress and Amazon, but which ones work with HA?”

“I need multiple channels…”

These voices from the Home Assistant community reflect a common challenge: finding a reliable Wi-Fi relay that integrates seamlessly with Home Assistant. Today, we’re excited to introduce our new Seeed Studio XIAO Gadget: the XIAO 6-Channel Wi-Fi 5V DC Relay.

Note: Seeed Studio XIAO Gadgets are a series of encased, plug-and-play devices designed for specific applications, powered by Seeed Studio XIAO Development Boards and XIAO Add-ons (including sensors, connectivity modules, and actuators). Each XIAO Gadget comes with a protective enclosure and pre-loaded firmware to support its dedicated application right out of the box. Explore more: www.seeedstudio.com/xiao

Introducing XIAO 6-Channel Wi-Fi 5V DC Relay

Powered by the advanced XIAO ESP32-C6, this innovative device features six independently controlled relay channels for managing up to six DC devices simultaneously, with each channel handling up to 10A. Thanks to pre-installed ESPHome firmware, it integrates seamlessly with Home Assistant, while supporting Wi-Fi, BLE 5.0, Zigbee, and Thread connectivity. Two reseved Grove interface ports allow for easy expansion with additional Grove sensors and actuators, and full Arduino IDE support makes it perfect for both beginners and experienced makers. Whether you’re controlling LED strips, motors, or sensors, this relay module offers a professional-grade solution for bringing sophisticated automation to your living space.

The XIAO 6-Channel Wi-Fi 5V DC Relay is now available for orders on our official Bazaar store at $19.90, with upcoming launches on Amazon and AliExpress. Take your Home Assistant automation to the next level!

As we discuss DC relays extensively, you may be familiar with AC relays as another major category. This brings us to a fundamental question that many beginners often ask:

AC Relay vs. DC Relay: What's the Difference?

Understanding AC Relays are used to control household appliances running on alternating current (AC power). The typical applications include:
    • Home appliances (washing machines, air conditioners)
    • Lighting systems connected to mains power
    • Electric water heaters
  • Voltage Range: Usually 110V-240V AC
  • Safety Considerations: Requires professional installation due to high voltage
Meanwhile, the DC Relays are for controling devices running on direct current (DC power). The typical applications include:
    • LED strips
    • Security cameras
    • Low-voltage motors
    • Sensors and Arduino projects
  • Voltage Range: Usually 3V-30V DC
  • Safety Considerations: Safer to work with due to lower voltage

（Credit：https://www.power-sonic.com）

How to Choose Between AC and DC Relays?
Ask yourself these questions:
1.What are you controlling?
a.Household appliances → AC Relay
b.LED strips or electronics → DC Relay
2.What’s your power source?
a.Wall outlet → AC Relay
b.Battery or power adapter → DC Relay
3.What’s your comfort level with electrical work?
a.Limited experience → DC Relay (safer)
b.Professional installation available → AC Relay

Available Relay Solutions from Seeed Studio XIAO Ecosystem

By now we have 3 relay solutions from our Seeed Studio XIAO Ecosystem: 1-Channel Relay Add-On Module for XIAO, XIAO 2-Channel Wi-Fi AC Relay, XIAO 6-Channel Wi-Fi DC Relay.  Let’s go deeper to explore what are their difference and how you can select you best fit for your unique applications.
So, to summerize: choosing the right relay for your home automation project depends on your specific needs and budget. For beginners or small-scale projects controlling a single device, the cost-effective Relay Add-On Module for Seeed Studio XIAO provides excellent value. Those looking to automate household AC appliances like air conditioners, lights, or fans should consider the XIAO 2-Channel Wi-Fi AC Relay, which handles both 110V and 220V systems safely. For more complex setups involving multiple DC devices such as LED strips, motors, or sensors, the XIAO 6-Channel Wi-Fi DC Relay offers comprehensive control over 5V, 12V, and 24V circuits. Both Wi-Fi-enabled models – the 2-Channel AC and 6-Channel DC – come pre-flashed with ESPHome firmware, ensuring smooth integration with Home Assistant for seamless smart home control.
Are you ready to upgrade your automation setup? Order the right relay now and bring seamless automation to your smart home!

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Carla Guo

Loves painting, crafts, and all things blingbling

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