Does input via optocoupler need a pullup resistor ? - General Electronics - Arduino Forum
Isolator vs. Optocoupler Technology
Using Optocouplers in project -- advice requested - General Electronics - Arduino Forum
![Noob question] Can you use an optocoupler to act as a button for input/output? - General Electronics - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/1/8/0/180d731ce7664d2c2cef307dc5e931b617132347.png "Noob question] Can you use an optocoupler to act as a button for input/output? - General Electronics - Arduino Forum")
Noob question] Can you use an optocoupler to act as a button for input/output? - General Electronics - Arduino Forum
LED Optocoupler Circuit
Question about design / input optocoupler
opto isolator - How can I control an input of a Siemens PLC with a 4N25 optocoupler? - Electrical Engineering Stack Exchange
led driver - LED PWM with FOD8342 Optocoupler - Electrical Engineering Stack Exchange
serial - high speed optocoupler circuit - Electrical Engineering Stack Exchange
opto isolator - pull up or pull down resistor for optocoupler - Electrical Engineering Stack Exchange
Optocoupler Circuits | Nuts & Volts Magazine
What is Optocoupler ? How Optocoupler Works ? The Optocoupler Explained - YouTube
optoelectronics - How to calculate exactly resistors values of opto coupler - Electrical Engineering Stack Exchange
Optoisolator question, pull-up resistors - General Electronics - Arduino Forum
What are Pull-up and Pull-down resistors? - Robu.in | Indian Online Store | RC Hobby | Robotics
Optocoupler Isolation Board, 817 Pull Down Output Optocoupler Isolation Module Independent for MOS Tubes: Amazon.com: Industrial & Scientific
opto isolator - Pull-up or pull-down at the optocoupler output - Electrical Engineering Stack Exchange
opto isolator - Can a pullup be placed on the LED input of an Optocoupler? - Electrical Engineering Stack Exchange
microcontroller - How to choose resistors(RD & RL) for optocoupler circuit - Electrical Engineering Stack Exchange
Using Opto Couplers
What is an Optocoupler and How it Works
Optocoupler Circuits | Nuts & Volts Magazine
PC817 Optocoupler - ProtoSupplies
4n25/35 optocoupler detect led on/off - Project Guidance - Arduino Forum
Need help designing an isolated optocoupler circuit using an N-Channel MOSFET : r/AskElectronics
Measure if LED is on with esp8266 and oktocoupler - ESPHome - Home Assistant Community
opto isolator - Noninverting optocoupler with a pulldown resistor - Electrical Engineering Stack Exchange
