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Type: Posts; User: Andy Belov

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  1. Thanks so much. This is what I was looking for....

    Thanks so much. This is what I was looking for. I'll try that, as I am in possession of a good analog oscilloscope.
    But the screen and the sensors "sound" differently, so I may need 2 filters.
  2. Just got the TS922 today:...

    Just got the TS922 today: http://www.digikey.com/products/en?keywords=497-6035-1
    Did my usual "wire mounted device" technique:
    17919

    It is much more quiet than the LM358 and I think it just...
  3. Appreciate the advice. I'm new to guitar preamps...

    Appreciate the advice. I'm new to guitar preamps and just followed SparkFun's proto pedal diagram.
    I'll try that.

    And I just found out that MPR121 (12 capacitive sensors in one chip) is no longer...
  4. I see what you mean, Derek, but my guitar buffer...

    I see what you mean, Derek, but my guitar buffer (LM358) is powered by the same Teensy.
    Everything is on the same board, powered by the same battery, connected to the same ground.
    The guitar...
  5. Buzzing noise with audio line input from cap sensors

    I have 3 Adafruit_MPR121 capacitive sensors and a touch screen with my Teensy 4.0.
    When I touch or release the screen or the sensors, I hear a pretty loud buzzing sound from the Audio Board, but...
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