I was trying to get some CP code to talk to Processing over a serial port interface. Of course, the CP REPL is normally available on whatever serial port the board mounts by default. This is a little complicated, because although you can use something likeprint from the REPL (orcode.py) to print a value to the console,sys.stdin andsys.stdout are text-based streams, which may not be what you want. And you'll get REPL noise to boot. Not ideal.

This is whereusb_cdc comes in. It's a handy library for managing the USB CDC (serial) on most CircuitPython boards. First,usb_cdc can be used to control how many serial ports CP will provide at startup. You can modifyboot.py to make this work:

import usb_cdcusb_cdc.enable(console=True, data=False)

The good entry point into the discussion is a pair of 2020 muses:The RAT: Rework Avoidance Theory andUnderstanding Incremental Switchover

Later muses are also published as podcast episodes.

This is a list of URLs to PostgreSQL EXTENSION repos,listed in alphabetical order of parent repo,with active forks listed under each parent.

⭐️ >= 10 stars
⭐️⭐️ >= 100 stars
⭐️⭐️⭐️ >= 1000 stars
Numbers of stars might not be up-to-date.

1. List the keys currently in your keyring:gpg --list-keys.