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I prefer linear code if I do not need interrupts. Would it be easier to just "busy-wait" in Setup, polling until you see the cycle-start button,...
if (GlobalStart=1) { This is an assignment, not an equality test. Bad C++ !!
When you reset your Arduino it should tell you the grbl version. Current version is 1.1, so perhaps you should upgrade. gnea/grbl
GRBL has a $C - Check gcode command that says OK for every line of valid gcode, but does nothing. gnea/grbl It sounds like your job may be...
If I understand what you want, you want the computer to talk to the ESP32 then have ESP32 to talk to the device running GRBL. If you use a USB...
The purpose of the pull-up resistor (a resistor that is tied UP (i.e. 5V)) is to pull a signal to some voltage in the absense of D13 putting...
OK, you seem to have it wired wrong. The path should be a direct line from D13 to EN. Somewhere on that direct line, one end of the resistor....
gnea/grbl $RST=$, $RST=#, and $RST=*- Restore Grbl settings and data to defaults You seemed to talk previously of TWO 10K resistors. One...
You say you expect and get a 10K resistance between pin 13 on the Arduino and the Enable pins on the driver chip. That sounds like the problem...
Hi twiens99:: I don't think you should be cutting legs off anything . I imagined (wrongly) that you had wires and could unscrew just one. But...
Confusing. Are you looking at the enable line a) from arduino output, b) at board input, or c) on the driver chip EN leg ? If you look at...
I would not microstep to begin with: go back to full-step mode. Also. if you set $1 to 0, the current drive will not turn off after movement....
I wired my two motors in series, so current must be the same in both. Even if the coil resistances are a bit different the driver chip PWM...
I have a simple UNO + CNC shield to drive my motors. So I have wired my two motors for Y in series with each other. So when one steps, the...
One trick I used is that the Arduino can run everything without needing a CNC machine or driver chips or hardware: So you can just plug it into...
ESP32 are 3.3V devices, Arduinos with a CNC shield is probably 5v. Technically you're supposed to use one of those little logic level shifters...
David is correct, in principle: you need some attached computer, even if this is not your laptop. For $8 you can get yourself an ESP32 dev kit,...
No, its not familiar. My own sender and GUI. My machine is built on an aluminium frame. It is just very convenient when I mount a new workpiece...
My GUI reads workspace settings. Presently I retrieve these by issuing a $# command and parsing / scraping the values I want from the response...
My flexible coupler I got yesterday has two grub screws (on the motor side, two on the other end) set at 90 degrees to each other. My motor shaft...
