16-Channel 5V Relay Module with Optocoupler and LM2596

The 16-Channel 5V Relay Module is an industrial-grade expansion board designed to safely control up to 16 high-power AC or DC loads from a single microcontroller. Featuring an onboard LM2596 step-down power supply and robust optocoupler isolation, this module ensures your sensitive logic circuits remain completely protected from voltage spikes and electrical noise while switching heavy-duty appliances.

Ideal for complex smart home automation, industrial PLC systems, and multi-zone lighting control, this massive array is fully compatible with 5V logic microcontrollers like Arduino Mega, Raspberry Pi, and ESP32. With standard heavy-duty screw terminals and dedicated status LEDs for every channel, wiring and debugging your intricate circuit diagram becomes an effortless process.

Features:

• 16 Independent Channels: Simultaneously manage a massive array of motors, lights, or industrial actuators from one board.
• Optocoupler Isolation: Provides superior electrical separation between the low-voltage control logic and high-voltage relays.
• Onboard LM2596: Integrated power supply IC ensures stable voltage regulation across all 16 relays even under full load.
• 5V Logic Compatible: Easily interface with popular microcontrollers using standard 5V digital signals.
• Visual Indicators: Dedicated LED status lights for each relay channel allow for quick operational monitoring and troubleshooting.
• Secure Terminals: Heavy-duty screw terminals provide reliable high-voltage connections without the need for soldering.

Package Includes:

1 x 16-Channel 5V Relay Module with Optocoupler Protection