M5Stack IoT Relay Switch C6 Single-Wire

SwitchC6 is a compact IoT switch that does not require a neutral conductor, making it ideal for seamless retrofits and new smart home projects. Thanks to the advanced ESP32-C6-MINI-1 chip with Wi-Fi 6 and mesh network, it offers a fast and stable wireless connection for controlling lighting and devices. With its built-in latching relay, support for 100–230 V AC, and two isolated GPIO pins for custom development, this switch is ideal for upgrading older electrical installations. At the same time, it can be seamlessly integrated into custom smart home solutions or used for prototyping connected devices. It comes with pre-installed ESP-NOW firmware and can be directly integrated into Home Assistant. This way, the SwitchC6 offers both an instantly deployable plug-and-play solution and the flexibility for developers in a single device. The back features a mounting clip that allows the device to be easily mounted on a DIN rail in the control cabinet. Via the ESP-NOW protocol, the SwitchC6 can also be wirelessly controlled with any ESP32-based controller. A built-in LED display informs about the switching status. As no neutral conductor is required, installation in existing light circuits is significantly simplified, making complex rewiring unnecessary.

Features:

No neutral conductor required: The SwitchC6 only requires a phase, making it perfect for retrofitting buildings without a neutral conductor.
Powerful ESP32-C6: Integrated ESP32-C6-MINI-1 SoC with Wi-Fi 6 and ESP-NOW mesh network for fast and reliable wireless connections.
Integrated latching relay: Bistable relay for controlling loads up to 2200 W (10 A) AC, ideal for lighting, fans, or small appliances.
Two isolated GPIO pins: Two protected IO pins for sensors or custom IoT extensions are available via the CA-IS3642HW isolator.
Developer-friendly: Delivered with pre-installed ESP-NOW firmware, open control protocol and SDK - ready for integration into Home Assistant or custom firmware.
DIN rail mounting: The integrated mounting clip allows easy installation on DIN rails in distribution boxes.
Wide lamp compatibility: Suitable for conventional incandescent lamps and lamps with phase-cut dimmers (SCR).

Application examples:

Retrofitting old light switches for smart lighting control.
Use in apartments without existing neutral conductor for smart switch solutions.
Integration as an embedded control module in custom smart home applications.
Implementation of IoT prototypes and educational projects in the smart home sector.
Remote control of lamps, fans, or other household appliances via Wi-Fi.