[lemorlenny]

@chocolate7 wrote:

Dear Is possibile to do it and this can improve computing speed?

You can limit the scan range editing the for next loop as show in previous post.
I built a responsive harpa laser in this manner with a classic Arduino.

Regards

[lemorlenny]

@Michael wrote:

I think you could use an external pot connected to A2. If you make a voltage divider using another resistor, then the resistance of the pot will determine a smaller voltage range.

For example: connect the 5V source to 30K or 40K of resistance, then to the left lead of the pot. The middle lead of the pot goes to A2. The rightmost lead of the pot goes to GND. This way, the full range of the pot will provide 0V – 1V to A2 and this will allow finer adjustment.

I should have designed it this way in the first place.

Many thanks for your reply, I’ll try it.

Regards

[lemorlenny]

Thanks for your reply this simple solution!.
And yes, i haven’t specified what project I meant, sorry.
My Video Experiment board is in shipping I hope it arrive fast so can i try it.

Regards

[lemorlenny]

I apologize for my cryptic question :).

I have to decode the position of a dot in a simple vertical fixed path, so I thought to optimize the recognize speed limiting the computing area to this path.
Is possibile to do it and this can improve computing speed?

Regards

Lenny

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