Open Source

30777 readers

440 users here now

All about open source! Feel free to ask questions, and share news, and interesting stuff!

Useful Links

Rules

Posts must be relevant to the open source ideology
No NSFW content
No hate speech, bigotry, etc

Related Communities

Community icon from opensource.org, but we are not affiliated with them.

founded 5 years ago

MODERATORS

[email protected]

Looking for Scriptable asynchronous communication tools (lemmy.radio)

submitted 5 months ago by [email protected] to c/[email protected]

15 comments fedilink hide all child comments

Anyone know of any scriptable asynchronous communication tools?

The closest so-far appears to be Kermit. It's been around since CP/M, but apparently there's still no centralised language reference and the syntax predates Perl.

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 1 points 5 months ago (1 children)

Yeah, it's already on a pi, connected to my LAN and the USB port of the CNC. The switch is on a gpio pin.

I need to automate the calibration of the three axis. In other words, tell the CNC to move a specific distance, then figure out how far it actually moved, update the number of steps per mm, rinse and repeat.

To implement this, I have a known calibrated distance, a set of three 1-2-3 blocks, so I actually need to move until the switch closes, then ask the CNC how far it thinks it moved.

I intend to run this several times because right now, doing it manually is giving me weird results and I'm trying to figure out the root cause of the error.

So, I need to move an axis, interrupt the move if the switch is closed, and keep moving until the switch is closed.

[–] [email protected] 1 points 5 months ago (1 children)

Maybe then you need to move one stop up from scripting into something closer to actually programming. I'd be surprised if Python doesn't have the library support on a Pi for dealing with both serial and GPIO I/O.

[–] [email protected] 1 points 5 months ago (1 children)

Yeah, I was hoping to avoid that, but it's been heading that way for a few days now :}

[–] [email protected] 1 points 5 months ago

I looked and Python has the library support for the GPIO and to do background threading to poll pins. My preference would be to go with a JVM language like Kotlin, but then I'm a programmer. Python, from the little that I've mucked about with it is really just one step in complexity from scripting. Maybe even easier, because some things in shell scripts are super difficult to do.