Arduino Function Generator (part 1)

Here is my GoogleDrive code repository

[lastmanstanding]

Did Amanda's original opamp output not work, why did you change the opamp setup?

[acqurius-gxlr]

is there any way to control the amplitude of the PWM or square wave singal of Arduino.

[FreiR]

Thanks for improvement, a good idea :)

[russellraldiris]

Is it possible that you can upload a schematic of your circuit configuration? Also the source code; I want to be able to build your design!

[CookieManCookies]

What about using a AD9833? Wouldn't that require less components to build a waveform?

[espenbgh]

You don't tell much about the frequencies range, - how low and how high wil i operate?

[janoschlolmann]

I think you could simply use a series capacitor at the output to remove the DC offset. Or not ?? xD

[asifkhan-gjvd]

How can I set the frequency range from 10Hz to 10MHz?