V21 code not using feedback?

[tomdertech]

Looking at the Arduino code for the V21, it seems that the feedback is not used?

It only seems to be read in the code and send as a tone to the speaker?

FEEDBACK_value=analogRead(FEEDBACK_pin);
if(sound_flag) tone(SPK_pin,FEEDBACK_value*2,50);

In your videos you show it working, how is it used?

[GaudiLabs]

Hi Tom The feedback drive is still in beta, you find the code in Dropper Beta Library on gitHub. What is the proiect or application you are working on? Are you working independently or for an institution? Best, Urs

On June 11, 2017 9:32:55 PM GMT+02:00, Tom Myers notifications@github.com wrote:

Looking at the Arduino code for the V21, it seems that the feedback is not used?

It only seems to be read in the code and send as a tone to the speaker?

FEEDBACK_value=analogRead(FEEDBACK_pin);
if(sound_flag) tone(SPK_pin,FEEDBACK_value*2,50);

In your videos you show it working, how is it used?

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[tomdertech]

OK. I have seen it. Are there any supporting docs?

I have no application in mind, just a curious independent researcher

[kevinyu1101]

looks like FEEDBACK pin check the voltage of REF_GND on the top siade of carrier PCB frame, why?