https://github.com/shinjan-saha/phototransisitor-effect-on-led

This is an Experiment conducted on an LED to Understand & Measure the voltage & current when an Light is thrown on an LED
https://github.com/shinjan-saha/phototransisitor-effect-on-led

arduino-ide arduino-uno electronics led

Last synced: about 2 months ago
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This is an Experiment conducted on an LED to Understand & Measure the voltage & current when an Light is thrown on an LED

• Host: GitHub
• URL: https://github.com/shinjan-saha/phototransisitor-effect-on-led
• Owner: Shinjan-saha
• Created: 2024-02-13T17:16:40.000Z (11 months ago)
• Default Branch: main
• Last Pushed: 2024-02-13T17:59:39.000Z (11 months ago)
• Last Synced: 2024-02-13T20:23:20.448Z (11 months ago)
• Topics: arduino-ide, arduino-uno, electronics, led
• Language: C++
• Homepage:
• Size: 395 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.MD

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README

        
# Phototransistor Effect Verifictation Using LED & Arduino

##  Introduction:






## So what is Phototransistor ? 




### A phototransistor is a semiconductor device that converts light into an electrical current. It consists of a p-type transistor with its base electrode doped to allow current. (also known as a light-sensitive resistor or light-dependent resistor) is an electrically controlled resistor that changes its resistance in response to incident light 




## Material Required



Arduino UNO R3

 Breadboard 

LED

Wires




## Experiment:-

### In this Experiment We use an LED to understand  how an  Phototrasistor work . And due to lack of Equipment like Multimeter we use Arduino UNO R3 & program it to use it as a Voltmeter & ammeter, to Measure the Volt & current acroos the LED when a Light fall into the LED. 

[ Check the Arduino  code Here ](./code.ino)



### We connect the  anode side of the LED in the Digital PIN .no of 13 of the  Arduino and cathode side to Ground. 




### Make sure to hold you Phone Torch above the LED Properly 




### Then We get the output in the Serial Monitor of Arduino IDE, the Voltage & current measured when incident light fall on the LED is displayed over in Serial Monitor.



### the varitation are over here in Voltage & current by changing the Density (Brightness) of the incident light(in this case Phone Torch)  to test & make sure that the correct voltage & current is displayed. Also to check the voltage & Current on diffrent density of light.