It is necessary to change the code in the firmware of the GRBL controller from CNC3018. Arduino

Embedded Systems & Microcontrollers — incorrectly specified categories?

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It is necessary to change the code in the firmware of the CNC3018 controller board. Activation of the Watchdog Timer (WDT) in the GRBL firmware.
I have a CNC machine that generally works well, but there is a problem.
If the connection between the phone and the machine is lost during operation, the side motors stop, but the spindle continues to work. This is very inconvenient and dangerous. It needs to stop as well.
In the process of searching for a solution to the problem, I found that this can be resolved by reprogramming the controller. Specifically, by configuring the Watchdog Timer (WDT) parameter. In short - I want the machine to completely reboot when the connection is lost (the reset should trigger).
Chat GPT described how to do this. I am leaving the screenshots.

Proposals 1 Withdrawn 1

Kostiantyn Chernyshov

2 2

Projects -
Rating -
Rating 253

Budget: 500 UAH Deadline: 1 day

Good time of day.
This problem is not resolved by the watchdog.
The watchdog reacts to the interrupt of its own controller (itself), and this is not related to the loss of connection with the PC.
Connect a 5-volt relay from your USB, and disconnect the power to the controller from this relay. This is a simple solution. You can pay for a cup of coffee)

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It is necessary to change the code in the firmware of the GRBL controller from CNC3018. Arduino

Kostiantyn Chernyshov

Proposals are currently absent

Proposals concealed

Current freelance projects in the category Embedded Systems & Microcontrollers

Small rotary wire camera

Development and refinement of PCB based on the existing layout