@world101 I couldn't get it to work with the Universal G code sender. It was like it could tell it was there, but it didn't seem to communicate. I think there's a lot to do with it all being ESP32 based or that you're going through a computer through the esp32 to the grbl module...I'm not sure. there is a I've not gotten any further along with it. I pretty much put it to the side and had hoped to come back to it. I think you could read line by line from a file on the SD card and write it to the GRBL module. So on my Shapeoko cnc router I can use the command $$ to see the parameters and settings and change many variables to setup a machine as you need it set. I do not see how you can do that with this device. Maybe in the arduino environment you can you the serial monitor. I was really disappointed that there is no documentation for this and I have found very little online. I did find this, but I just didn't have the time to go down this rabbit hole. link text

@makermatrix Did you figure it out? I just got the GRBL13.2 module and looking for info on how to use it.

@m5stack because i dont have an M5-Device

Hi, really nice to explore your project! You have really gone thought all the steps which i skipped so far on my ticker. (mobile app to config, fw updates, multiple sources, webstore) NICE and very professional.

Hello @felmue, you are right, the top of M5Core2 and the AWS are identical. But the bottom is the challenge: The ground of the AWS shields the antenna. -> Yes, I tried the AWS version without the AWS M5GO2 bottom attached. I tried this too: Insert a prototyp board between AWS-top and AWS-bottom. It improves the field strength a little bit. Insert a small silver wire in the prototyp board at the antenna of the AWS-top. So I almost reach the regular field strength.