1.This 2 -Channel 817 Optocoupler module is used when it comes to the need for isolation control and voltage conversion
2.It can Realize 3.3v or 5v to control the interface of 3.6-30v voltage
3.Photoelectric isolation has 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.
4.Adopting 2-way 817 optocoupler, it is aim to achieve the control signal and the control signal isolation, you can directly use the micro-controller or other devices IO port to achieve voltage isolation control