B4R Question Max Buttons on UNO

[Hypnos]

My project need to use 10 buttons, may I know how many buttons BR4 can handle? the UNO board have 6 Analog In (A0-A5), is that mean that I can only use 6 buttons ? Thank you!

 

[Erel]

Any pin can be used as a button.

 

[johndb]

My project need to use 10 buttons, may I know how many buttons BR4 can handle? the UNO board have 6 Analog In (A0-A5), is that mean that I can only use 6 buttons ? Thank you!

You could also just use one analog input with a voltage divider for all 10 buttons if you are using individually wired buttons.

 

[Hypnos]

Any pin can be used as a button.

Thanks and just done a quick test for 10 buttons and worked! I can continue my 2nd B4R project now!

 

[Cableguy]

If you search the web, you can find many button matrix examples... You can have as many as 64 buttons with only one I/O pin...
It all depends on what you want to do with them... But, usually, a button is not used on analogue pins... As they have only 2 states...

 

[Hypnos]

Thanks All for your help, I have just finished my project : )

https://www.b4x.com/android/forum/threads/b4r-arduino-midi-drum.80114/