POT command

Shyrb

Hi,
I am building a robot using Basic1.
The robot should track voice.
I need to connect 4 microphones as inputs to the Basic1 and to decide which one of them recieve the loudest signal.
I am trying to use the POT command to translate the microphones output to a digital value.
As an experimante, I connected P4, of Basic1, directly to·5V. I expected to see that Basic1 is reading a value of 255, but instead it read only once 255 and then read value of 0.
Can anyone explain to me the phenomena, please?

········· Thanks,

·············· Shy

Chris Savage

Hello,

·· Without knowing what you have connected and how they're connected, it would be difficult to say what's happening.· Your code would also be helpful (attached).



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Chris Savage
Parallax Tech Support
csavage@parallax.com

Jon Williams

The POT instruction is pretty specific in its goal: to charge an RC circuit, then discharge it step-by-step to determin the value of the RC circuit. So, it's probably not what you want to use; POT is not like the BS2's RCTIME command (RCTIME is passive) -- POT actually charges the RC circuit for you, and this could be causing problems with yoru mic inputs.

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Jon Williams
Applications Engineer, Parallax