Esp32 Status error

[ocimjr]

Hi,

I started to play with this project. Be patient I'm a beginner in the world of electronic.
After put a test circuit see image:

I notice some phantom triggers. Investigating I saw that the flag status_is_error is always true.

Log :
After flash

12:08:59.525 -> status_is_error 0
12:09:01.997 -> Sample rate 3916.8471680
12:09:01.997 -> Max sample error Hz: 100
12:09:01.997 -> Detected : 4083.15
12:09:01.997 -> serial_print : (pad)i : 0 (input )j: 0 -> 1931 1932.45 (pad)i : 0 (input )j: 1 -> 1931 1932.66
12:09:02.031 -> serial_print2 : -1.45 -1.66

Then

12:09:03.266 -> status_is_error 1
12:09:03.266 -> Sample rate 7805.6582031
12:09:03.266 -> Max sample error Hz: 100
12:09:03.266 -> Detected : 194.34
12:09:03.297 -> serial_print : (pad)i : 0 (input )j: 0 -> 1934 1932.48 (pad)i : 0 (input )j: 1 -> 1934 1932.59
12:09:03.297 -> serial_print2 : 1.52 1.41
12:09:04.548 -> status_is_error 1
12:09:04.548 -> Sample rate 7805.6396484
12:09:04.548 -> Max sample error Hz: 100
12:09:04.548 -> Detected : 194.36
12:09:04.580 -> serial_print : (pad)i : 0 (input )j: 0 -> 1931 1932.53 (pad)i : 0 (input )j: 1 -> 1930 1932.56
12:09:04.580 -> serial_print2 : -1.53 -2.56
12:09:05.833 -> status_is_error 1
12:09:05.833 -> Sample rate 7805.6396484
12:09:05.833 -> Max sample error Hz: 100
12:09:05.833 -> Detected : 194.36
12:09:05.833 -> serial_print : (pad)i : 0 (input )j: 0 -> 1931 1932.68 (pad)i : 0 (input )j: 1 -> 1936 1932.63
12:09:05.865 -> serial_print2 : -1.68 3.37

I have only one pad connect pd-80r

Probably I did some wrong.

Thanks

[corrados]

Sampling rate 7800 Hz should be sufficient to geht good triggering. When you hit the pad, do you get correct MIDI notes?

[ocimjr]

Ok thanks for your help

[ocimjr]

I was playing to see the read of ADC and when de 3.3v circuit is connect to esp32 the reading of snare and rim are in the region of 1900 without hitting the drums.
If disconnect the 3.3v circuit the reading drops to 0.

I was wondering which values should be the ADC when I'm not hitting the pad? Do you know?

Thanks again

[corrados]

1900 is correct.

[ocimjr]

I'm almost starting a real prototype and I'm wondering if you use a shield for your esp32 or juste the board?

[corrados]

As you can see in the pictures of the change log file, I am currently not using shielding. I think it would be a good idea to use shielding but it seems drum modules by Roland don't do it, e.g., as seen in the TD-6 module or the TD-10 module: