ESP32-C6-based Wi-Fi relay board features six 10A relays, supports Home Assistant, 3D printed enclosure

Seeed Studio’s XIAO 6-Channel Wi-Fi 5V DC Relay is a compact ESP32-C6 Wi-Fi relay board built around the XIAO ESP32C6 module which supports Wi-Fi 6, BLE 5.0, Zigbee, and Thread connectivity.

Designed for remote control and automation, the device comes with pre-installed ESPHome firmware and features six independent relay channels, each supporting 10A at 30V DC or 250V AC, making it ideal for simultaneously controlling multiple DC or AC devices. The board also has two grove ports for sensors and actuators, making it suitable for home automation, industrial control, energy management, smart agriculture, and other applications.

XIAO 6-Channel Wi-Fi 5V DC Relay Board Specifications

Main module – XIAO ESP32C6
- SoC – ESP32-C6
  - - CPU
    - Single-core 32-bit RISC-V clocked up to 160 MHz
    - Low-power RISC-V core @ up to 20 MHz
  - Memory – 512KB SRAM, 16KB low power SRAM
  - Storage – 320KB ROM, and 4MB flash
  - Wireless – 2.4 GHz WiFi 6, Bluetooth 5.0 LE/Mesh, 802.15.4 radio for Zigbee 3.0 and Thread. Matter compatible.
- Antenna – External u.FL antenna or ceramic antenna; selectable by software (GPIO 14)
- USB – USB Type-C port for power and programming
Relay
- Number of relays – 6x independent channels
- Relay ratings
  - DC load – 10A @ 30V DC (recommended)
  - AC load – 10A @ 250V AC
- Relay terminals – COM, NO, NC for each channel
Expansion I/Os
- 1x I²C (Grove) for sensors/expansion
- 1x UART (Grove) for serial communication
Dimensions – 97 × 92 × 31mm (3D-printed enclosure)

The ESP32-C6 Wi-Fi relay board comes with pre-installed ESPHome firmware for direct integration with Home Assistant. Additionally, it supports Wi-Fi-based remote control and automation without additional configuration. On top of that, you have the option of using Arduino IDE, ESP-IDF, or MicroPython for custom applications. Seeed Studio will usually provide documentation through a wiki, but there’s nothing yet for this product.

The Seeed Studio XIAO ESP32-C6 module supports an external antenna, but the enclosure does not provide an opening for it. That’s not a big issue though, because you can always drill a small hole in the enclosure to attach an external antenna if needed, allowing improved wireless performance without modifying the internal circuitry. The company also shared the case design on Thingiverse, so you could always modify it, and print it with an antenna hole if needed.

There are already plenty of ESP32 relays. We have previously written about the ESP32 IoT Relay Board, a credit card-sized quad relay board running Tasmota firmware. We have also covered Olimex/ ESP32-C6-EVB quad-relay board that supports Wi-Fi 6, BLE 5, and Zigbee. Another option with RS485 control RTC, CAN Bus, RS232, LoRa, and DIN rail mount, is the Waveshare ESP32-S3-Relay-6CH module that is also offered in an enclosure like the Seeed Studio relay board in this article.

The “XIAO 6-Channel Wi-Fi 5V DC Relay” is priced at$19.90 on Seeed Studio.

Debashis Das

Debashis Das is a technical content writer and embedded engineer with over five years of experience in the industry. With expertise in Embedded C, PCB Design, and SEO optimization, he effectively blends difficult technical topics with clear communication