I'm a researcher just starting to work with the Arduino. I was wondering if there was a straightforward way of generating a sinusoidal output to use as a clock signal. Basically, I have an external device that I need to provide an 8 Hz sine-wave to. I have found several methods online, but they all seem overly complicated for what I think would be a super simple thing to accomplish using a microcontroller.
I'm using the Arduino Uno. Any advice would be much appreciated.