Content for Optocoupler

Optocoupler

An opto-isolator (also called an optocoupler, photocoupler, or optical isolator) is an electronic component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 25 kV/μs. A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.

3D Printed Timelapse/3D Scanning Turntable

“An affordable Arduino Turntable designed for Time lapse photography. Changing the gearing and code it can also be used for Photogrammetry/3D scanning or Video. The turntable operates on the move shoot move principle in the Timelapse and Photogrammetry modes …

minimum effort ESP32-MIDI-Synth

“The ESP32-MIDI-synth is a minimum effort synthesizer. It consists of only 11 resistors, a 6N318 optocoupler, an ESP32 and some sockets. All of this is enough to make an 8 channel MIDI synthesizer. The tones are produced by …

Smart Water Meter

“This Smart Water Meter has an inductive proximity sensor connected to an ESP32 is programmed in ARDUINO and uses the BLYNK IoT platform. Story While energy prices are increasing every day, the prices of water are (still) moderate compared to …

Arduino DCC Decoder

“Modern model railroads are digitally controlled using a Digital Command Control (DCC) protocol similar to network packets. These data packets contain device address and instruction set that is embedded in the form of AC voltage and fed to train track …

Silent Running With This Dual Fan Controller

“Add a quiet fan cooling system to existing equipment with this configurable controller. I prefer a quiet and calm environment. It’s why I prefer listening to the more mellow broadcasts from BBC Radio 4 or Classic FM. It’s …

ESP01 Project Using Blynk IFTTT & Google Assistant

“Make an ESP01 Project using Blynk IFTTT to control a 2-channel relay module with the Google Assistant. (Circuit + Source Code) In this IoT project, I have shown how to make an ESP01 Project using Blynk IFTTT to control a 2-channel …

IR remote control Arduino based electric board

“Arduino based electric board controlling system, Can be controlled using any universal IR remote. good IR receiving range and support 12 CH. Hello guys, today we are going to make a remote-control universal switch on/off 3 channel circuit. Though …

MQTT ESP8266 Home Automation Project 2021

“How to make MQTT ESP8266 NodeMCU Home Automation project to control relays from the switch and smartphone (Circuit + Code) through internet. In this IoT project, I have shown how to make an MQTT ESP8266 Home Automation project to control a …

Resettable E-Fuse

“A simple, cheap short circuit protector, controllable either manually or using a microcontroller. There are many E-fuses available both precises ones, used in industrial or critical situations, and [cheap] maker-friendly ones which despite doing their job, but are not suitable …

Bridging the gap between old and new, garage door gets a Wi-Fi controller

“This project started a long time ago, the idea is to be able to control the two garage doors remotly. Before anything else, you have to understand how the door is working, each door has one button, press it, it …