Product Description
The 2 Channel 5V Relay Module Board is a dual-channel optocoupler-isolated relay shield for independently controlling two high-voltage or high-current devices from a single Arduino, ESP32, Raspberry Pi, or any 5V microcontroller.
Key Specifications:
| Parameter | 5V Version | 12V Version |
|---|---|---|
| Working Voltage | 5V | 12V |
| Static Current | 5mA | 5mA |
| Maximum Current | 190mA | 80mA |
| Trigger Voltage Low | 0 – 1.5V | 0 – 1.4V |
| Trigger Voltage High | 3 – 5V | 5 – 12V |
| Trigger Current | 2 – 4mA | 2 – 4mA |
| Maximum Load | AC250V/10A | DC30V/10A |
Board Features:
- 2 independent relay channels — dual JQC-3FF-S-Z relays (10A rated each)
- Optocoupler isolation on both channels — full electrical barrier between control and load
- 1-2 Road high/low level trigger select terminal — configurable per channel group
- Relay output screw terminals per channel: NO / COM / NC
- Power supply and signal triggering end clearly labeled
- LED indicator per channel — visual relay state confirmation
- Mounting holes for panel or enclosure installation
Typical Applications:
- Dual-zone smart home lighting or appliance control
- Two-pump or two-valve irrigation systems
- Forward/reverse motor direction control (H-bridge style)
- Dual-load temperature control switching
- Two-stage alarm and security systems
- AC/DC load switching in industrial panels
- Automated dual-device IoT control via ESP32 or Raspberry Pi
- Two-channel solenoid valve control
The 2 Channel 5V Relay Module Board Shield with Optocoupler is a compact relay switching module designed for Arduino, ESP32, Raspberry Pi, and other microcontroller development boards. It enables low-voltage digital control of high-voltage AC and DC devices including lights, motors, pumps, fans, and automation equipment.
The module features 2 independent relay channels with optocoupler isolation for improved electrical protection and stable signal transmission. It supports both high-level and low-level trigger modes, making it suitable for various embedded control and automation applications.
Features
- 2-channel relay switching module
- 5V DC operating voltage
- Optocoupler isolation protection
- Supports high-level and low-level trigger
- LED indicators for relay status
- High-current relay switching capability
- Easy screw terminal wiring connection
- Compatible with Arduino and other controllers
Technical Specifications
- Product Type: 2-Channel Relay Module
- Relay Channels: 2
- Operating Voltage: 5V DC
- Trigger Voltage: 5V Logic Level
- Trigger Mode:
- High-Level Trigger
- Low-Level Trigger
- Isolation Type: Optocoupler Isolation
- Relay Type: Electromagnetic Relay
- Relay Contact Configuration: SPDT
- Maximum Switching Voltage:
- 250V AC
- 30V DC
- Maximum Switching Current: 10A per channel
- Control Interface: Digital Signal Input
- Status Indicators: LED indicators for each relay
- Connection Type: Screw terminal block
- Compatible Boards:
- Arduino UNO
- Arduino Mega 2560
- ESP32
- Raspberry Pi
- STM32
- PCB Material: FR4
Applications
- Home automation systems
- Smart switching projects
- Industrial automation control
- Motor and pump switching
- Lighting control systems
- IoT automation projects
- Embedded control applications
- DIY electronics projects
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