Not sure if the original thread mentioned the Frog boards.
They are out of stock but lots of good pictures.
https://www.tindie.com/stores/fred_iot/Frogo Pin ESP Dev Boards Unboxing & Review
https://www.youtube.com/watch?v=E_suUYinpvALive: TinyPICO Nano - Test Jig Adapter PCB - Frogo pins!
https://www.youtube.com/watch?v=XxYQXnt_iRkCastellated boards aren't going away so maybe a more mainstream solution will be developed.
-----Original Message-----
--
http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist