Arduino with Tricolor LED and Push button - Oriya

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 Jashwanth2021
  
  
  Answer last updated on: Aug. 10, 2025, 6:41 p.m.

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• 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 Muthukkumar
  
  
  Answer last updated on: Oct. 20, 2022, 4:21 p.m.

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• 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 tanmoy21
  
  
  Answer last updated on: May 10, 2022, 1:03 p.m.

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• 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 Ritik26
  
  
  Answer last updated on: July 30, 2020, 11:04 a.m.

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• 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 chiragrpatel
  
  
  Answer last updated on: Feb. 8, 2020, 5:02 p.m.

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• 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 umesh123
  
  
  Answer last updated on: Jan. 31, 2020, 3:41 p.m.

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• 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 dinuhai
  
  
  Answer last updated on: Jan. 18, 2020, 2:11 p.m.

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• Tricolor Led

  Can we create arduino based car?

  02-03M 20-30S crchauhan
  
  
  Answer last updated on: Jan. 19, 2017, 11:17 a.m.

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