I have a custom made shield for Arduino Uno. But I found out that Uno doesnt have a digital to analog converter, but it uses PWM instead. I can't use PWM on my project.
Which Arduino with a DAC has the same (or almost) pinout than UNO so it would take my shield? Would Zero be good?
Why is that then. With a low pass filter on the end of PWM you can get a DC voltage.
The A/D converters in othe Arduinos like the Zero do not have the full rail to rail output that your project might need.
Sounds easy. Could you link me any low pass filter? I haven't use any ever.
Edit: Ahhh, it's made from capasitors and resistors? I will try some.
Read about it here
http://www.thebox.myzen.co.uk/Tutorial/PWM.html
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