To use the arduino in a modular setting, a good "analog" output signal is vital. In this video I try to make a 10 bit "analog" output by using port manipulation to use 10 output pins into an R2R network, to create a much nicer signal than the 8 bit pwm signal that is called to do an analogWrite to a pin.
A video with lots of tinkering and explaining concepts, and not so much modular fun ;)

Read the article about port manipulation that I refer to in this video:
https://deepbluembedded.com/arduino-p...

The image that I used to describe the R/2R DAC can be seen here along with some more info on how it works:
https://www.allaboutcircuits.com/text...

Modular in a Week playlist:
   • Modular In A Week (MIAW)  

My Tindie store:
https://www.tindie.com/stores/Sourcery/

Support my work by becoming a Patreon:
  / sourceryone  

Join the discussion on the Discord server:   / discord