5V 4 Channel Relay Module Control Board For Arduino
The 5V 4 Channel Relay Module Control Board is a versatile switching module designed for controlling high-voltage AC or DC devices using low-voltage microcontrollers such as Arduino, Raspberry Pi, ESP32, ESP8266, PIC, AVR, and STM32. This relay board allows users to safely control appliances, motors, lights, pumps, and other electrical loads through digital output signals.
The module features four independent 5V relays with optocoupler isolation for improved protection and anti-interference performance. Each relay channel supports up to 10A switching capacity and includes LED status indicators for easy monitoring. The board is designed for stable operation and easy integration into automation, robotics, IoT, and industrial control applications.
Features
- 4 independent relay channels
- 5V operating voltage
- Optocoupler isolation for safety
- Compatible with Arduino and Raspberry Pi
- LED indicators for relay status
- Supports AC and DC load control
- High-current relay switching capability
- Standard TTL control interface
Technical Specifications
- Operating Voltage: 5V DC
- Relay Channels: 4
- Trigger Signal: LOW level trigger
- Maximum Switching Voltage: 250VAC / 30VDC
- Maximum Switching Current: 10A per channel
- Driver Current: 15–20mA per channel
- Relay Type: SPDT (Single Pole Double Throw)
- PCB Size: Approx. 72mm × 52mm
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