Run Zephyr on Raspberry Pi Pico W 2025-07-26
The Zephir LED blinker example does not work on the Raspberry Pi Pico W because the on-board LED is wired differently. But the hello world works and with:host shows:Nice!
screen /dev/ttyUSB0 115200*** Booting Zephyr OS build v4.2.0-491-g47b07e5a09ef ***
Hello World! rpi_pico/rp2040 Raspberry Pi Pico 1 2025-07-26
This section is about the original Raspberry Pi Pico board. The "1" was added retroactively to the name as more boards were released and "Raspberry Pi Pico" became a generic name for the brand.
Flash the Raspberry Pi Pico Created 2025-07-26 Updated 2025-07-27
This is a major design flaw, that the only easy default way is that you have to unplug, press bootsel, replug:
Jerry Chun Shing Lee 2025-07-26
Involved in the CIA 2010 covert communication websites affair.
- 2018-01-16
- www.nbcnews.com/news/us-news/ex-cia-officer-jerry-chun-shing-lee-suspected-spying-china-n838186 Ex-CIA officer Jerry Chun Shing Lee suspected of spying for China - NBC News
- www.politico.com/f/?id=00000161-05bd-dcd4-a96b-35bda0f10001 Affidavit for Jerry Chun Shin Lee
- 2018-01-20 www.nbcnews.com/news/china/cia-china-turncoat-lee-may-have-compromised-u-s-spies-n839316 Alleged CIA China turncoat Lee may have compromised U.S. spies in Russia too
- 2019-11-22 www.justice.gov/archives/opa/pr/former-cia-officer-sentenced-conspiracy-commit-espionage Former CIA Officer Sentenced for Conspiracy to Commit Espionage - US Dept of Justice
Zephyr hello world example Created 2025-07-26 Updated 2025-07-27
Zephyr blinky example Created 2025-07-26 Updated 2025-07-27
Blinks the on-board LED if the board has one.
Does not work on:
- Micro Bit: build fails
- Raspberry Pi Pico W: build works but does nothing because the LED is connected differently
Run Zephyr on Raspberry Pi Pico 2025-07-26
Note that the LED blinker example does not work on the Raspberry Pi Pico W, see also: Run Zephyr on Raspberry Pi Pico W.
You can speed up the debug loop a little bit by plugging the Pi with BOOTSEL selected, and then running:This flashes the image, and immediately turns off BOOTSEL mode and runs the program.
west flash --runner uf2However to run again you need to unplug the USB and re-plug with BOOTSEL again so it is still painful.
Raspberry Pi Pico getting started 2025-07-26
Getting started on Ubuntu 25.04: see: Program Raspberry Pi Pico W with X.
Then ignore the other steps from the tutorial, as theese use the picozero package, which is broken with this error: github.com/raspberrypilearning/getting-started-with-the-pico/issues/57and uses picozero specific code. Rather, just use our examples from rpi-pico-w.
AttributeError: module 'pkgutil' has no attribute 'ImpImporter'. Did you mean: 'zipimporter' Run Zephyr on X 2025-07-26
Zephyr example 2025-07-26
Exascale hypothesis 2025-07-26
The "exascale hypothesis" is a name made up by Ciro Santilli to refer to the hypothesis that the real-time human brain simulation becomes possible at exascale computing.
It is a simple extrapolation from the number of synapses in the human brain () times the number of times each neuron fires per second.
LED blinker 2025-07-26
This is the hello world program of microcontrollers: blinking and LED! Many boards have an on-board LED, making this a convenient hello world that does not require any external components.
GNU ld 2025-07-26
Type of hello world 2025-07-26
- web development
- video game
- Doom is the hello world shooter game
Proportional-integral-derivative controller 2025-07-26
harmonic.fun Created 2025-07-26 Updated 2025-12-13
They seem to do autoformalization, automated theorem proving and code generation, and they use Lean a lot. Sounds fun.
Calculate resistor needed for an LED 2025-07-26
Feedback control algorithm 2025-07-26
LED HOWTO 2025-07-26
There are unlisted articles, also show them or only show them.