0

We need 20 analog outputs with adjustable voltage (0-20 volts), frequency (0-150 Hz), as well as adjustable maximum current, and also the ability to measure current, frequency and voltage.

How can this be implemented using PI?

I know there is an analog zero module for Pi, but it will take up all the GPIO pins and give only 8 analog outputs. In addition, it is unclear whether he can do it all.

|improve this question
  • 1
    The question is too vague (no real performance criteria) and too broad. I think you need to do more research to identify likely solutions. – joan Aug 4 '17 at 11:16
1

From my knowledge there is no ready to buy solution.

I would recommend to use a I2C bus with the required converters connected to it.

  • D/A converters example LTC2309 is a 8-Channel, 12-Bit Digital to analog converter.
  • OP amplifiers to get the correct voltage span.
  • Current limiters.
  • To measure the properties of:

And in addition to above a lot of analog design.

|improve this answer

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.