Waveshare Raspberry Pi Power Relay Board Expansion Module Three Channel(3 ch) for A+/B+/2B/3B/3B+/4B

🔌 Relay Module for Raspberry Pi GPIO – Designed for Raspberry Pi, this expansion board connects via standard 40PIN GPIO header, enabling direct control of high-voltage devices like lights or fans. ⚡ High-Voltage & High-Current Control – Features a high-quality mechanical relay that supports up to 5A at 250V AC or 5A at 30V DC, suitable for smart home switching and industrial control. 🔒 Photo-Coupled Isolation Protection – Built-in optocoupler separates high-voltage circuit from the Pi’s logic, preventing signal interference and protecting your Raspberry Pi from electrical surges. 💡 Relay Status Indicators & Custom Pin Support – Onboard LEDs show real-time relay status; jumper selection allows you to redefine control pins beyond the default for advanced customization. 📚 Developer-Friendly with Sample Code – Includes Python, shell, wiringPi, WebioPi, and bcm2835 code examples to help you get started quickly with relay control projects on Raspberry Pi.