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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Tell me about glue please: How do you connect a microcontroller that conditionally executes code in different languages over USB serial on a typical desktop distro? (lemmy.world)

submitted 3 months ago by j4k3@lemmy.world to c/linux@lemmy.ml

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This is something that perplexed me a few years ago with Flash Forth on a PIC18/PIC24/Arduino Uno. I was using the Python serial emulator S-Term because it is simple in the source code and worked. I really wanted a way to load more structured Words into the FF dictionary with bookmarks in a way that made sense structurally. That lead to a desire to execute code from the uC on the host system, but I never wrapped my head around how to do this in practice.

As a random simple example, let's say I set up an interrupt based on the internal temperature sensor of the PIC18. Once triggered the uC must call a Python script on the host system and this script defines a new FF word on the uC by defining the Word in the interpreter.

How do you connect these dots to make this work at the simplest 'hello world' level? I tried modifying S-Term at one point, but I didn't get anywhere useful with my efforts.

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[–] bloodfart@lemmy.ml 6 points 3 months ago

From the uc side, open a serial connection, send data. On the host side, prepare a place for received data. On the host side, walk through the received data until the thing you’re looking for is found, then execute some action (in your case a python script).