[Grbl_Esp32 Issue#460] $$ command returns ERROR:3

#1 – MitchBradley 于 2020-06-28

The Devt branch seems to be working (built from commit 1ff82d9):

Telnet:
“
wmb@DESKTOP-6I1SH7T:/mnt/c/Users/wmb/Documents/GitHub$ telnet 192.168.2.161
Trying 192.168.2.161...
Connected to 192.168.2.161.
Escape character is '^]'.

Grbl 1.3a ['$' for help]
$$
$$
$0=3
$1=250
etc
“
WebUI:
!image

#2 – HuubBuis 于 2020-06-29

Compiling the Devt branche results in error: sketch\Motors/MotorClass.h:34:68: fatal error: TMCStepper.h: No such file or directory

I did some tests. On the master branch $$ works fine using (WiFi, Telnet, Bluetooth and serial). The problem starts after (my gui) initializes the grbl controller by sending a reset, $X, and reading build info $I. After any of these commands, the $$ command results in error:3 even when using the ESP3D. A power cycle is needed to get $$ working agian.
I have a lot of trouble using WiFi on this board. The problem could be in the board itself. I have ordered a new board and will continue WiFi testing using this new board.
I closed the issue and will open a new one if the new board has the same problem. Until then, I will use Bluetooth for testing.
Thanks for your support!

#3 – MitchBradley 于 2020-06-29

To compile the Devt branch, you must install the TMCStepper library, even if you are not using Trinamic drivers – since Devt includes a runtime configuration mechanism that lets you change the driver type without recompiling.