#mixme8

...to make audio synth-y goodness!

Tymkrs Analog Shift Kit:  This is pretty neat, it is a PIC which acts like a DAC and as a shift register.  It allows you to convert a 7-bit digital value into an analog value between 0 to 3.3V, and allows the serial data to pass through (if desired) to another module. (https://www.tindie.com/products/tymkrs/tymkrs-analog-shift-kit/)

Video: https://www.youtube.com/watch?v=2F9Y_RywjzI

Tymkrs AND8 Module:  This is a module with 8 AND gates where one side of each gate is controlled by the output of a 74hc595 shift register and the other side of each gate is controlled by the input of 8 signals of your choice. (https://www.tindie.com/products/tymkrs/tymkrs-and8-module/)

Video: https://www.youtube.com/watch?v=kuG__jFfwHQ

Tymkrs MixMe 8: This module is a passive summing mixer for super cheap!  It takes 8 signals in and gives you one signal out.  We've used it with audio for great success! (https://www.tindie.com/products/tymkrs/tymkrs-mixme8-module/)

Video: https://www.youtube.com/watch?v=kuG__jFfwHQ