M5Stack 2-Channel SPST Relay Unit – Reliable Switching Control for Your Projects
The M5Stack 2-Channel SPST Relay Unit is a compact switching module that provides two independent SPST relays (Single-Pole Single-Throw) for controlling electrical loads up to 250 V. Ideal for home automation, IoT prototyping, and industrial control applications.
Control two separate devices simultaneously – perfect for lights, pumps, or valves.
Switch loads up to 250 V safely and reliably – designed for higher currents.
Plug-and-play integration into M5Stack projects via the standardized connector – no soldering required.
Unlike simple transistor switches, the SPST relay provides galvanic isolation and can switch higher voltages and currents. The two channels are independently controllable, allowing flexible switching sequences.
Ideal for...
This module is aimed at developers, makers, and engineers who want to integrate reliable switching into their M5Stack-based projects – from home automation to prototyping and education.
How to use the M5Stack Relay Unit
Simply connect the module to a compatible M5Stack controller (Core, Core2, Stick, etc.). Program the relays via UIFlow or Arduino IDE. The connections are clearly labeled – connect the load to the screw terminals and control it via digital outputs.
M5Stack is a leading provider of modular, programmable development kits and IoT components. Their products are known for ease of use, compatibility, and a wide range of expansion modules. M5Stack solutions are widely used in the maker community and in education.
SPST stands for Single-Pole Single-Throw. It is a simple switch that opens or closes one circuit. The module contains two independent SPST relays.
The relay is rated for a maximum switching voltage of 250 V. For current ratings, please refer to the datasheet – typically up to 10 A.
The relay unit connects directly to a compatible M5Stack controller (e.g., Core, Core2, Stick) via the standardized M5Stack connector. Communication is via digital GPIO pins.
The package includes the M5Stack 2-Channel SPST Relay Unit and a short connection cable. A detailed manual is available on the manufacturer's website.
Yes, this product comes with a 24-month manufacturer warranty covering material and workmanship defects.
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