Tecchie

Controlling 4N35 optocoupler using a GPIO signal from PI 4 or Arduino Controlling 4N35 optocoupler using a GPIO signal from Raspberry PI 4 or Arduino or any similar device which has General Purpose Input Output facilities (GPIO). Simple python script can be adjust for timing. The  4N35  is an optocoupler for general purpose application. It consists of gallium arsenide infrared LED and a silicon NPN phototransistor. What an optocoupler does is to break the connection between signal source and signal receiver, so as to stop electrical interference. check out my Raspberry PI projects. https://sites.google.com/view/fxv300tech/raspberry-pi-4/projects

4N35 optocoupler circuit using a switch or a photo resistor Raspberry PI 4 for many videos and projects visit https://sites.google.com/view/fxv300tech/raspberry-pi-4 connecting ONVIF CCTV camera YCC365 to iSpy  ispyconnect Connecting ONVIF camera to Xeoma Video Surveillance app using a Raspberry PI 4 How to Configure a static TCP/IP IP Address - Raspberry PI 4 Building PI 4 using a GeekPI case for the Raspberry PI 2  PI 3 or P1 4 Temperature sensor script   Raspberry PI 4 Blinking Red LED on Raspberry PI 4 and Breadboard powering Using PI 4 GPIO signals to control a 74LS00 NAND Gate Wiring a 2 Way Switch Controlling 4N35 optocoupler using a GPIO signal from Raspberry PI 4 or Arduino Temperature sensor script using 74HC595 to output result to TIL311 display