I try to get the electronics working but so far nothing works as expected:
Harware: Arduino Uno Pololu a4988 drivers; Power supply ( regulated 0-24V/ up to 35 A), stepper motor (bipolar)
Software: grbl 0.8.a flashed with Xloader , serial terminal, processing with Mmarz's Gcode sender (from the forum)
My problem is, that the flashing is working and the serial console is promting
Grbl v0.8a '$' to dump current settings
and it responds with the listing of parameters after sending '$' but nothing else.
with the gcode sender I get the message :
Available serial ports listed below : COM3 Attempting connection on COM3. Waiting for handshake... it appears there is nothing present on this COM port All available serial ports were tested and none responded with the appropiate authentication sequence Please ensure that arduino is connected via a USB serial cable and try again
even if the aruino is showing up in putty or other terminals on COM3.
I am sure to have wired it up correctly (diagram from pololu)
Any help would be appreciated (and thanks arthurwolf for your help so far ;))