This is a product I have poured many of hundreds of hours into. Please check out the listing for documentation and more information. This is a kit and firmware combo, with a couple more parts (screen and Arduino) requiring purchase from other sources. The total cost of the item is between 150-180 USD. Powered by Spad NeXt who has been extremely helpful in helping this come to fruition. Please let me know if you have any questions!
https://www.etsy.com/ca/listing/861158855/preorder-oct-2020-class-echo-microsoft
