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Microcontrollers and analog signals

  1. Feb 10, 2008 #1
    If I have a simple microcontrol, say 8 pin PICAXE. Could I use it to read the voltage going through a circuit directly? And can I output varying voltages?
     
  2. jcsd
  3. Feb 10, 2008 #2

    chroot

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    Some chips have ADC and DAC resources, some don't. You'd have to give us more information.

    - Warren
     
  4. Feb 10, 2008 #3
    re:

    I want to use this to measure the current running through a wire and more or less power to a solenoid or motor depending on the current running through the wire.
     
  5. Feb 11, 2008 #4

    chroot

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    According to the datasheet, it does have built-in analog-to-digital conversion circuitry, but it does not have built-in digital-to-analog circuitry. It does have digital outputs though, so you might be able to accomplish what you want with pulse-width modulation.

    - Warren
     
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