Help with button bo...
 
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Help with button box and Arduino

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(@theblitz)
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Joined: 3 years ago
Posts: 4
Topic starter  

I want to make a button box with the following parts:

  • 10 momentary push buttons
  • 5 rotary encoders
  • 1 toggle switch
  • 1 start engine button
  • 16 leds for RPM (from a WS2812 Strip)
  • 1 LED matrix for gear indication (MAX7219 LED Matrix)

My question is, which Arduino is the best for this project. If I understand correctly I need an Arduino Pro Micro so the games recognizes the buttons. Will an Arduino Leonardo be as good as the Arduino Pro Micro for this project, because I can't seem to find an Arduino Pro Micro in stores.

Besides the Arduino, do I need an additional power supply or is the 5V from the Arduino enough for the parts?

Thanks in advance!

This topic was modified 3 years ago by TheBlitz

   
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(@alexxx23)
Active Member
Joined: 3 years ago
Posts: 8
 

Hey! Leonardo works in the same way as Micro. In fact, they are the same thing. It is also recognized as a joystick in games, but has more inputs and an additional power connection.  For such a project, i did not use additional power, there enough power from USB. 


   
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(@theblitz)
New Member
Joined: 3 years ago
Posts: 4
Topic starter  

@alexxx23 Thank you for helping out! Just ordered the Leonardo and hope it's going to work out!


   
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(@blackghostd5)
New Member
Joined: 3 years ago
Posts: 4
 

You might need external power supply! The switches, encoders and buttons don't require much power, but 16 WS2812B LED-s, and an LED matrix might. I had an 8 digit 7 segment LED display, a 16x2 LCD, and 16 WS2812B LED-s hooked up trough USB, and if the WS2812 LED-s lit up at higher brightness, the contrast on the LCD would fade away, also the 7 segment LED display would dimm as well, so i think you should consider an external power source.


   
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(@theblitz)
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Joined: 3 years ago
Posts: 4
Topic starter  

@blackghostd5 Thanks for your input! The start engine button and the toggle switch have a LED built in and they use 12V, so I'm thinking of a solution to power the LED strip, matrix and the two leds with just one power supply or the Arduino itself as the LED strip and matrix are 5V.


   
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