5 V 1‑Channel Relay Module - Compatible With 5 V Microcontrollers for Arduino

Upgrade your DIY and automation projects with the TekBud 5 V 1‑Channel Relay Module. This compact PCB board interfaces easily with any 5 V microcontroller—like Arduino, Raspberry Pi, STM32—allowing you to control high-voltage AC and DC devices up to 10 A. With optical isolation, this relay separates the low-voltage control side from the load side, enhancing safety in home automation, robotics, IoT, and industrial applications.
The module features both low-level and high-level trigger modes, a convenient LED indicator, and user-friendly screw terminals for easy load connections. Robust yet simple, it’s the hassle-free choice for turning your microcontroller signals into real-world power control.
 
🔄 ONE CHANNEL RELAY SWITCH
This 1‑channel relay lets you control one high-voltage device (up to 10 A) using a 5 V microcontroller, making it perfect for automation tasks.
🧠 LOW-LEVEL TRIGGER COMPATIBILITY
Works with both Arduino, Raspberry Pi, or any 5 V microcontroller using low or high signal triggering for versatile connectivity.
⚡ SAFE OPTICAL ISOLATION
Built-in opto-isolator ensures safe separation between control and load circuits—ideal for handling AC and DC loads securely.
📦 WIDE VOLTAGE SUPPORT
Operates from 5 V to 6 V and draws only ~2 mA of quiescent current, ensuring energy-efficient operation in battery-powered or embedded IoT systems.
👍 SOLID MOUNT DESIGN
PCB-mounted relay with screw terminals, LED status indicator, and standard pin layout — easy to install in control panels or breadboards.
🤖 IDEAL FOR DIY & HOME AUTOMATION
Great for controlling lights, fans, sensors, valves, or motor-based devices—trusted by hobbyists, students, and makers.
 
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