Hi, This is my first Topic in this community Today i wanna explain some thing about Light Emitting Diodes (LEDs)Theory:A Light emitting diode (LED) is essentially a pn junction diode. When carriers areinjected across a forward-biased junction, it emits incoherent light. Most of thecommercial LEDs are realized using a highly doped n and a p Junction.
=>Generally LED is simple , but if we add just Arduino Uno3without any electronic component we can use it for security for example when it's detect light in dark , turn on alarm i was use it in school in my cell ... anyway we can use this idea in much. it will work like Ultrasonic send waves and if a object in domain waves, will turn on alarm But the problem, we know LEDsjust output Light not input Light by diode.The Actual Idea we will write a code make for us LED output light and input light in same time then logs changes in Serial MonitorTools :1. 2 LED // LED1 Receive Light (input) and LED2 (Output)2. Arduino Uno33. Arduino IDE4. and your mind, because i will not be explain some parts. Source code :This is a Video maybe will explain what i mean
great thanks to all member community
Welcome man! Congrats on your first article
Speaking of LEDs, my room is fitted out with them, they make for an edgy and cool hacker space
Interesting article. I have been working with LEDs with my arduino and they amaze me how simple yet intriguing they are.
Nice article and welcome to the community!
thank you brother
yep they light help us for thinking
@Techno_Forg and your welcome thank you man
@pry0cc thank you too
Using LEDs as inputs is pretty interesting! Didn't know that was possible (and it's actually useful for me), thanks for the article.
What is the sensor you use on the A3 pin?