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This is a project for Arduino to make a Light Sensitive Bar Graph, aimed at beginners. Arduino measures the voltage on a voltage divider composed of a resistor ...
You will need: * Arduino UNO * Some LEDs * A 560 Ohm resistor for each LED (or a value similar to that) * A 10k Ohm resistor ...
Wire up the circuit as shown in the diagrams.
Converting the analogue value to a bar display is accomplished pretty easily with the map function: sensorValue = analogRead(analogInPin); // read the analog in value ledLevel = map(sensorValue, ...
/* Bargraph sketch Recipe 7.5 from the Arduino Cookbook by Michael Margolis Turns on a series of LEDs proportional to a value of an ...
Try changing it to "decay" the bar graph using: decay = max(sensorValue, decay); and reducing decay each iteration. See more at: https://www.inkling.com/read/arduino-cookbook-michael-margolis-2nd/chapter-7/recipe-7-5
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