Package Included

- 1 x PC817 2 Channel Optocoupler Isolation Board Voltage Converter Adapter Module

Description:

- Driving Port Signal Voltage: 3.6 – 24V
- Output Port Voltage Port: 3.6 – 30V
- Output Port Current: 10mA max
- Jumper Cap Can Achieve Output Port Is Pull Up Or Pull Down Output

- Photoelectric isolation has a strong anti-interference ability. It can drive high-power triodes, MOS tubes and other applications that require high-voltage driving, and can also directly drive low-power 24V relays. If it is a pulse signal, please note that the limit of 817 is 4KHZ or less. If the control signal is greater than 4KHZ, please do not use this module, it will not work properly.

NOTE:
The input port is shared with GND;
The output ports are independent of each other;

Applications

• I/O isolation for MCUs (Micro Controller Units)
  - Noise suppression in switching circuits
  - Signal transmission between circuits of different potentials and impedances

Reference

• https://www.youtube.com/watch?v=dD4r5I7h4Xg
• https://electropeak.com/learn/interfacing-pc817-4-channel-optocoupler-module-with-arduino/