Am planning to add two external button switches. Something like this: [www.barantec.com] One for emergency stop, and one for G28 command and continuing with program execution ( reset with vision program auto start ). At the moment PC ---> Duet comm is done over USB cable. What would be "best" way to read this impulse and pass it to running program ? Arduino --> serial2USB converter --> reading data from this USB device and passing in realtime to vision program ? btw. what command should be executed for emergency stop ? Arnix https://reprap.org/forum/read.php?178,839756,839756#msg-839756 Tue, 21 Apr 2026 22:14:35 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?178,839756,839824#msg-839824 https://reprap.org/forum/read.php?178,839756,839824#msg-839824 request_pin_state after each move. That way a switch ( no push button ) can cause a pause (or maybe run a macro of your liking?).

In RRF it could be M577 or similar ( eg. filament runout sensor )]]> o_lampe Delta Machines Wed, 28 Nov 2018 02:04:04 -0500 https://reprap.org/forum/read.php?178,839756,839768#msg-839768 https://reprap.org/forum/read.php?178,839756,839768#msg-839768
Basically, one option should be used for "small" errors and second for power cut off.
In end effect i want to make this user friendly as much as possible. This is why i was planning
to reset the vision program after some small error acours.
E.g. G28 + trigger on some python script which will reset vision system.
In this case reset would be over in 3- 4 seconds... just an idea.

I guess that something similar can be done with your setup.
Hmm, i would need some kind of confirmation that G28 / homing was executed correctly,
before i can trigger restart of vision system...This could be a problem.....

A.]]> Arnix Delta Machines Tue, 27 Nov 2018 09:40:45 -0500 https://reprap.org/forum/read.php?178,839756,839767#msg-839767 https://reprap.org/forum/read.php?178,839756,839767#msg-839767 tomasf Delta Machines Tue, 27 Nov 2018 09:04:17 -0500 https://reprap.org/forum/read.php?178,839756,839756#msg-839756 https://reprap.org/forum/read.php?178,839756,839756#msg-839756
Something like this:
[www.barantec.com]

One for emergency stop, and one for G28 command and continuing with program execution ( reset with vision program auto start ).
At the moment PC ---> Duet comm is done over USB cable.

What would be "best" way to read this impulse and pass it to running program ?
Arduino --> serial2USB converter --> reading data from this USB device and passing in realtime to vision program ?

btw. what command should be executed for emergency stop ?

Arnix]]> Arnix Delta Machines Tue, 27 Nov 2018 05:08:34 -0500