Analog input

Hello, i have a 0-200mV AC signal i want to connect to a input. Is this possible and wich board do you recomend. I want to use this variable input to create a variable output 0-5VDC.

Thanks

What speed is the A/C signal?
How many bits of precision do you need?

To digitise an A/C signal you have to shift the zero level to the mid point of the arduino’s supply. Do this with a pair of resistors, then AC couple your signal into this. This means connecting it through a series capacitor.

As for output you either need an external D/A or use PWM and a filter.

Grumpy_Mike:
This Emma’s connecting it through a seriese capacitor.

some glitch in the typing?

…R

Thanks Robin2, that is my iPad again thinking it knows what I am saying.

Grumpy_Mike: Thanks Robin2, that is my iPad again thinking it knows what I am saying.

I would speak firmly to your IPad. That sort of loose talk could easily get you in trouble :)

...R