EL817 3-5V 8 Channel Optocoupler Isolation Module - High Level Trigger

EL817 8 Channel Optocoupler Isolation Module. This module is useful for connecting digital systems (such as a 5V microcontroller) to a high voltage or noisy system. It electrically isolates a controller from a high power system using an opto-isolator IC. It creates a kind of electrical noise barrier between the devices by isolating the systems. This board can be used in high noise environments such as isolating the signal between the driver and the microcontroller.