Qunqi 4pcs 5V 2 Channel 5V Relay Module with Optocoupler Low Level Trigger Expansion Board for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi

product description:

Specification:
1. Dimensions: 50.5mm * 38.5mm * 18.5mm
2. Weight: 31g
3. PCB color: black
4. board around with four fixed screw holes, hole diameter 3.1mm, easy to install and fixed
5. Relay selection of high-quality loose relay, single-pole double-throw. A common end, a normally open end, a normally closed end
6. Optocoupler isolation, good anti-interference
7. Low level pull-in, high-level release. Pull the status indicator light, release the status indicator is off
8. VCC for the system power, JD_VCC for the relay power. Plug in the jumper cap

Electrical parameters:
Supply voltage: 5VDC
Current: Larger than 100mA
Load: 250V 10A or 30V 10A DC

Wiring instructions:
VCC: The system power is positive
GND: Negative pole of the system power supply
IN1 - IN2: Relay control port

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