Open Theremin V3 Build Not work

Posted: 3/24/2023 12:06:07 PM
anfeo

Joined: 3/24/2023

Hi, I'm newbye in thi world, I have assembled a Chinese version of open Theremir V3.

I have calibration problem, the frequency tuning range, it is out of value for the pitch.
I have tried different antenna configuration, but I can't modify this range.

It is a grounding problem?

I have checked every single component (is my first smd soldering) it seams ok, I can't check the integrate component but all seam work.

this is a bit of the output:

Code:
PITCH CALIBRATION

Code:
Arudino Freq: 16001577.00

Code:
Pitch Set Frequency: 499250

Code:
Frequency tuning range: 502529 to 546704

Code:
DAC value L: 0 Freq L: 3217

Code:
DAC value H: 4095 Freq H: 47441

Code:
DAC value L: 4095 Freq L: 47431

Code:
DAC value H: -297 Freq H: 44842

Code:
DAC value L: -297 Freq L: 44835

Code:
DAC value H: -10831 Freq H: 17331

Code:
DAC value L: -10831 Freq L: 17353

Code:
DAC value H: -17468 Freq H: 37264

Code:
DAC value L: -17468 Freq L: 37265

Code:
DAC value H: -5047 Freq H: 38634

Code:
DAC value L: -5047 Freq L: 38623

Code:
DAC value H: -27895 Freq H: 6991

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