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  • teensy_ino's Avatar
    06-18-2020, 07:52 AM
    Hello everybody, I try to use analogRead to generate a threshold value from an audio signal (with appropriate input circuitry). The signal has a frequency of 30 Hz (at about 1.5 Vpp). With a UNO R3, for...
    0 replies | 168 view(s)
  • teensy_ino's Avatar
    06-13-2020, 06:28 PM
    Hi Oddson, I think there is a misunderstanding here! The voltage divider with only 2 resistors (R1, R2, each 3.3K) was only one example. It is completely clear that 1.65 V is measured (1 mA flows through the...
    8 replies | 1302 view(s)
  • teensy_ino's Avatar
    06-13-2020, 03:04 PM
    Hi everyone, First of all thanks for your answers ! of course the voltage divider consists of R1 and R2 - sorry if I have expressed myself somewhat unclear ... R1 is on + 3.3V DC, the other side on PIN A1....
    8 replies | 1302 view(s)
  • teensy_ino's Avatar
    06-12-2020, 06:46 PM
    Hi everyone, I am currently working on voltage dividers on Teensy 3.2. In order to be able to calculate the R1, I would have to know how much current can flow at the Analog IN pin (I max?) with the Teensy 3.2 (at...
    8 replies | 1302 view(s)
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