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Can I send serial data from Snap! to a USB connected microcontroller – Page 2 – Physical Computing – Snap! Forum

https://forum.snap.berkeley.edu/t/can-i-send-serial-data-from-snap-to-a-usb-connected-microcontroller/5254?page=2

I've got the new RaspberryPi Pico and I just want to control the pins by simply sending micropython commands to it over its REPL Just for proof of concept to switch the onboard LED off and on
this one does have the overhead of repeat until (which I’m guessing has about the same

Internalizing upvars? (open) & How to make a script wait for a message (solved) – Advanced Help with Snap! – Snap! Forum

https://forum.snap.berkeley.edu/t/internalizing-upvars-open-how-to-make-a-script-wait-for-a-message-solved/16667

I’m (re-)writing a library block that I’m using semaphores with, protecting the integrity of shared data within a multiprocessing environment. Wait times may vary between less than 1 millisecond and several seconds, or e…
Multiple processes may be waiting for the same semaphore too be freed.