A recent update to Ubuntu 20.10 on my desktop PC seems to have removed /dev/ttyACM0. This was working fine in Ubuntu 20.10 before the update.
I tried updating to the latest UDEV rules.
I tried rebooting.
I tried...
Perhaps the Pi doesn't have the needed USB serial driver installed. There should be a device like /dev/ttyACM0. You might also need to mess with stty to configure it or use a terminal emulator like screen, picoterm,...
Recently, I was able to build and run teensy_loader_cli for OpenWrt 19.07.7 running on an GL-iNet Mango GL-MT300N-V2 Mini Router.
As I mentioned in another thread, I'm able to reprogram the Teensy over the air, but...
I've done something like this with plain serial. It's a little wonky if the serial port also has all the console messages. You can disable the console messages, but then debugging the system gets harder. What I do...
You could try posting picture and giving a bit more information. What exactly did you do? What did you expect? What did you observe? What have you tried regarding fixing it?
Some stud finders use capacitance to locate wooden studs behind drywall, based on the difference between the dielectric constant of air and wood.
I'm wondering if a Teensy could be made into a stud finder by adding...
Paul diagnosed why long runs of APA101 LEDs don't perform at high speed. How complicated would it be to make a circuit that gets inserted every 100 or so LEDs to clean up the clock signal?
For most projects, keeping...
I guess this is possible
What makes you think the keyboard controller is the problem and not the switches or a trace in common between the failing switches?