MidTBot

Setup

Print 3d parts from Thingiverse
Collect hardware from BOM—note the ESP32 is the dev version
Purchase controller from Bart Dring's Tindie store
Download firmware from [1]
Follow instructions on Dring's Grbl_ESP32 Wiki

Connect to web server "GRBL_ESP" with p/w 12345678
1. index.html.gz is located in the .../data folder of /Grbl_Esp32-master
Continue instructions here

Troubleshooting

Can't find "#define CPU_MAP_ESP32"?

Change #define CPU_MAP_ESP3 to #define CPU_MAP_MIDTBOT instead.

Won't connect when compiling (Windows)?

Change cable several times, checking Device Manager for changes. If still no response, install "CP210x USB to UART Bridge VCP Drivers" from ESP32.net

Missing library?

Double-check that the contents of the "Library" folder in the Grbl_ESP32.zip file pulled from github are copied to the libraries folder ...Documents/Arduino/libraries.

"Hard resetting via RTS pin"?

It's done.