Basic Information:
Printer Model: VZBOT 235 AWD
MCU / Printerboard: MELLOW FLY SUPER 8 PRO (STM32H723)
Host / SBC
klippy.log
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Describe your issue:
I have a question for configuring an Emergency Stop button. I have read a discussion ( Emergency stop button without supported LCD ) that says to use Gcode Button with action_emergency_stop() for jumping the queue of commands and stop the printer. Is this the best alternative for the emergency stop button?? Is there a pin that I can use to reset (Kill_Pin or Reset Pin) the mainboard so it inmediatly stops the printer?
Thanks for the help!!!
Happy printing!!!
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Actually, the kill_pin only appear in conjunction with a LCD.
Maybe you can create a ‘pseudo’ display and only the kill_pin is connected.
https://www.klipper3d.org/Config_Reference.html#display
1 Like
Thats a good idea, so klipper doesnt have a way to connect an emergency Stop from default. Do I need an analog signal to trigger that pin? 0-5v, 3.3v?? Whats the default signal range for lcd displays?? Can I use the 5v from the motherboard fan ports or a gpio? Pull-up or Pull-Down Resistor??
kill_pin:
The pin connected to ‘kill’ button. This button will call
emergency stop. The presence of an ‘analog_range_kill_pin’ config
parameter turns this parameter from digital to analog.
analog_pullup_resistor: 4700
The resistance (in ohms) of the pullup attached to the analog
button. The default is 4700 ohms.
If I want digital I do not configure the analog_range_kill_pin and I do not need a pullup resistor?
Just the kill_pin for a simple switch is enough.
Maybe you have to enable the pull up resistor
Connect the pin to 5v? Or 3.3v??