Motor control via a digital button (dashboard)

General
1

Hello, I want to control a motor and use a RaspberryPi4b. The control is monitored via a GRBL CNC controller. As long as I hold down a button (Digital Dashboard), the motor should turn to the right as soon as I release the button it should stop immediately. Please help . Many thanks in advance

2

dashboard

Which dashboard are you using?

There are several examples for Dashboard 1.0 - here is one such demo: Button on dashboard - #9 by jbudd

3

I use the normal node-red dashboard. Are there better dashboards for this?

4

The old (original) dashboard (we now call Dashboard 1.0 or legacy) uses old, unsupported technology (AngularJS) see AngularJS | endoflife.date.

And while it will likely continue to work for some time, there will be a day when a bug or CVE forces users to move to a different "thing"

Because of this, @flowfuse/node-red-dashboard has been created. We typically refer to this as Dashboard 2.0. It uses vue instead of angularJS and is fully supported.

The choice is yours.

5

OK thanks. but do you happen to know how to control the motor? and how do I get to the dashboard?

6

I guess you send G Code to it.

There are a hand full of posts (including your other post where I pointed you towards to GRBL libs) and some others from @MadTooler and another Precision CNC Masking Machine using Node-RED Dashboard & GRBL32 CNC Control by @dudleyjosh - if these guys are still around, they might be able to point you in the right direction. Otherwise you will have to work out how to parse and transmit G Code yourself.

I have no idea what you mean by this.

7

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