Hiya, actually there is an option -- this chip is open source and $14.95 list price. https://iotdev360.com/articles/2019/04/01/sparkfun-edge-dev-board.aspx http

Hiya, actually there is an option -- this chip is open source and $14.95 list price. https://iotdev360.com/articles/2019/04/01/sparkfun-edge-dev-board.aspx https://iotdev360.com/articles/2019/04/01/sparkfun-edge-dev-... Hope this helps!