Hello, I was reading:
https://blog.bela.io/2017/01/11/percussion/
They say to use 2.2MOhm resistors, and yet, that is not what is pictured in the diagram.
I think it might be brown black green (1MOhm).
Best,
-Dave
Hello, I was reading:
https://blog.bela.io/2017/01/11/percussion/
They say to use 2.2MOhm resistors, and yet, that is not what is pictured in the diagram.
I think it might be brown black green (1MOhm).
Best,
-Dave
Fair point. Both values would be fine. The point of those resistors is to provide a suitable biasing voltage in order to center the signal around 1.65V and allow positive and negative voltages from the piezo to be read. They have to be fairly large in order to avoid loading the piezo too much (as it is a high impedance voltage source).