Arduino with Tricolor LED and Push button - English

Arduino with Tricolor LED and Push button - English

Questions posted on Forums
Arduino Tutorials - English

Questions posted on ST Forums:

Arduino tricolor with push button
Why it is necessary to connect cathode of rgb led to the push button?
11-12M 10-20S

June 20, 2025, 4:16 a.m. Jashwanth2021
Push button confusion
In the video (9:55), when each time the push button is pressed they get a single color but as per the program they should get the led sequence for every push... someone explain this
09-10M 50-60S

June 20, 2025, 11:29 a.m. Muthukkumar
Problem in Ground Pin
I have used 220k ohms register, when I am connecting the longest pin of the tri-color LED to GND it is not working, but when I am shifting the pin to 3.3v its works(RGB Emitted), and when the pin is shifted to any other pin of the power row, 4 types of light are emitted by the led (white, yellow, turkeys blue, pink ) not RGB. where I am going wrong. please Help
02-03M 30-40S

June 20, 2025, 12:11 p.m. tanmoy21
Tri Color LED
Push button program is not showing any output .My led keeps blinking whether the button is pressed or not.What to do now?
07-08M 30-40S

June 20, 2025, 8:57 a.m. Ritik26
Why we need to add Register in TriColor LED with Button?
Tutorial 6: Arduino with Tricolor LED and Push-button - EnglishTime: 8:10The video has an explanation but I am not able to understand why we need to use register between pin no 4 and Anode pin of LED.
08-09M 0-10S

June 18, 2025, 3:57 p.m. chiragrpatel
Wrong microcontroller found. Did you select the right board from the Tools > Board menu?
Wrong microcontroller found. Did you select the right board from the Tools > Board menu?
03-04M 10-20S

June 20, 2025, 11:38 a.m. umesh123
Tricolor ED light contrast
How to change the contrast of the LED How to calculate the Resistor values needed to change the contrast
06-07M 20-30S

June 20, 2025, 2:03 p.m. dinuhai
Tricolor Led
Can we create arduino based car?
02-03M 20-30S

June 20, 2025, 11:23 a.m. crchauhan

Outline:
Tricolor LED - Common Cathode Tricolor LED
Other external devices that are required for this experiment
Understand the connection circuit details 
Connect a tricolor LED to Arduino board
Write a program to blink tricolor LED
                    Write the code for the Void loop function
Compile and upload the program
Use Pushbutton to control the blinking
Why to give the mode as INPUT
How to reduce the delay of the blink

Assignment

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Code files

Arduino-with-Tricolor-LED-and-Push-button-Codefiles/
Arduino-with-Tricolor-LED-and-Push-button-Codefiles/Tricolor-LED.txt

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Additional Material

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