I have released ESP32S-Dev Rev 2.0, and it works even better now than before

[easytarget (Owen)]

I just posted a reply about ESP32 controllers on another thread, but it’s related to this…

I have a suggestion; if you want to make a MKIII version of this it might be a good idea to add a SD card reader slot (which can be optionally used), connected to the default SPI / SD pins.

I use a ESP32 based controller in my Mini-CNC, which has two ‘tool’ modes (laser and spindle) with two separate configs, I use FluidNC on it and a SD card is needed to host configs, gcode and the Web Interface.

Looking for: PWM "driven" Voltage Regulator for Spindle with Linear DC output

All the 32bit controllers do much better than ATMEGA based ones since they typically have more flexible IO mappings, more timers, etc. Plus they have the performance to do software PWM where appropriate too. For the ESP32 you need to use a twin-core dev board, add a SD card reader, then run FluidNC, (which evolved from GRBL-ESP32, but is now it’s own beast). I’ve promoted FluidNC here before, I use it at home in my mini CNC and think it is great. It’s still evolving too and can now run multi-a…