Thank you for a great tutorial. Very useful. As an experiment I wrote C++ and MicroPython programs to toggle an IO pin without any delays. Python managed about 60KHz will lots of jitter, C++ ran at 37MHz without jitter - over 500x faster.

Extremely interesting stuff , I mean one of the limitations of arduino is that it was single core , so if you had to handle an event you had to use an interrupt which needed to be kept short , but with this one ; one core could do the communication and monitor the pins while the other is making computationally intensive tasks .

This is brilliant Gary thank you for doing this. This really shows the power of what is possible here! Taking full advantage of the dual cores is a very much needed gem of a video thank you!

Gary, this is fantastic! So much knowledge in 20 minutes! I've tried setting up C++ before and failed (I did not use WSL and got errors on cmake), hopefully will succeed with your help.

Thanks for the demos and detailed information. Really informative videos and inspiring. Mine's on order now!

Thanks for useful tutorial. Got up and running on Linux in half an hour. Was getting tired of Arduino and its extremely low RAM. Two cores is pure luxury for a microcontroller, and as your example shows, they are easily utilized. Great!

Thanks Gary, the Pico project gen' was the thing I missed trying to get the USB serial data. Great work keep it up :)

Great video, I did this onArchlinux and everything worked just fine. I used this video to really get in to c developing for pico, thanks you very much. One question for the people out there, someone has found a way to control an i2c oled in c using Pico? I only found tutorials on how to do it with micropython or circuit python

Another excellent video, wonder how long before VC + Platform IO has native Pico support allowing for easier C programming on a PC and other platforms.

Very interesting. Thanks Gary!

Going to give the Pico a try when they arrive. Should be a fun mcu, and fun to program in C.

I am suitably chastened by this brilliant video. Any thoughts I might code in C on a Pico are thoroughly debunked, and I shall very reluctantly pick up the Python handbook and learn another total mess of a programming language instead!! 😂 Kudos to Gary. That's what a proper coder can do. I'm going to tell my boss that the Pico must have been lost in the mail, and hopefully he'll forget about the whole thing 😉

Thank you for doing this video. I found some instructions on the web, but they were incomplete. I needed the project generator, and the python-tk (tkinger). That it came together. Easy as Pi. Ok, it is a bit more involved... I don't have the picos yet, but I have the development environment set up and can build a uf2 file.

Very nice. This is something I want to try when I get my own laptop rather than use my works laptop

Cool guide, Gary! Thanks!

Interesting as usual Gary, thank goodness for Thonny and micropython though

Было полезно, смотрел с переводом, плата пико уже заказана и едет, жду не дождусь когда смогу начать экспериментировать с ней

Very very helpful. Thank you❤

The final example of push/pop between cores should have synced both LEDs to be on and off at the same time (per the coded example) but it looks like the same video from previous build was shown with LEDs blinking opposite from each other.

Thank you!

It might be helpful to specify which version of WSL you are using. How you might set this up could vary between versions. E.g., I believe that on WSL 2, it’s better to use the ‘internal’ Linux file system as WSL2 is VM based. There are/were also issues around serial ports in WSL2. Probably best to stick to WSL1 for this kind of stuff ATM. Great video. Thank you. 👍🏼

Perfect 👌👌

Very interesting Gary! Can you run Julia on it?

Thank sir

VS Code has a serial monitor as well.

I can't get the serial monitor working, inside Arduino IDE the port option is greyed out and trying to open the terminal errors to "board on null not available"

Hi Gary, long time no see. You ever go back to the University of Portsmouth? Seems like a decent little device.

Many many Thanks.

Can you explain how to write C for core 2 and Python for core 1?

What about the latest version of Code::Blocks IDE Cross Compiler and gcc-arm-eabi

Great explanation! Looking forward to the rust edition :-)

Great video as usual, but why run under WSL on a windows machine instead just following the setup instructions for running under windows 10? I had a go at setting up Visual Studio Code on a PC running Ubuntu by following the instructions for RPi, but encountered too many hurdles and had to give up!

I wonder if both cores share the same memory or even context within the code. Like if for example I had the pico constantly polling a couple gpio pins with one core and processing and sending their data through serial with the other core, if I saved the state of the gpio on different variables, would I be able to access their values from the second core?

Good lord Linux is about a cryptic as it comes.

There are several tools to monitor the Serial Port, for instance: minicom, cutecom, screen ....

Isn't Arduino on the way, with support for the processor too? Thanks for sharing your experience with all of us👍😀

You can also use Forth and BASIC.

Hi, I have a question about what is happening at 6:40. When I installed wsl, it created a username and directory that I cannot find in C\Users or anywhere in my file explorer, but I got everything installed up to this point, in a directory called pico, etc. Command 'pwd' shows that a linux 'home' directory was created but I cant find any of this on my system through windows explorer. Not sure how to do the PATH, /mnt/ stuff now. Again, when I installed wsl it just handed me a username (maybe based on my Windows ID, not my pc 'name') without asking me and created some secret directory somewhere; I'm not sure how to proceed. Do I really need the windowing system in general or is it just for the demos?

Hi - Late to the channel - but love your videos. However - one thing I noticed may be an editing error - at 14:36 when you show the two leds on 2 cores using messaging, the video of the blinking is incorrect - it shows the leds blinking alternately with equal duration, while the code was asynchronous with one led twice as fast as the other! Sorry to be nit-picky, but things like that could confuse beginners. Keep up the great work.

thanks alots

Thanks for a great tutorial. Sadly I couldn't continue from where you were explaining X11 monitor stuffs. I don't have a raspberry pi to run on. How can I proceed without an other raspberry pi or other machine at all? Thanks a lot!

Wait, after you build Cmake with gcc, shouldn’t you then rebuild Cmake with Cmake?

Thank you very much! Very usefull. May I ask you to make a tutorial with a rotary encoder connected via 1 or/and 2 irqs to the pico? I am struggeling with this, because there is no Encoder library.

I see that you also have "#include "pico/stdlib.h"" underlined like I do. I can not run step by step on vscode I get an error that says pico/stdlib.h: No such file or directory Is it possible to step through the code and set up breakpoints in vscode using this method? Is so how? Please help! Thank you so much! Great Video!

Where is a link to the installation of the x server?

I have been unable to get this to work. I installed X-Server, but when ti run the ./pico_project.py --gui command, I get an error saying _tkinter.TclError: couldn't connect to display "127.0.0.1"

Great stuff here, however, I am running into an issue where even if I do the "export PICO_SDK_PATH" command correctly, pico_project.py will pop up and tell me it is unable to locate the pico sdk path. I am very frustrated and have tried everything.

hlo sir i don't know about python i know about c for arduino can i use pi pico

I'm not finding anywhere in the internet how to program the raspberry pi Pico registers in c. Do you know how?

Why are the two includes showing error?

What a pain to set up. I'm going to wait for a better Pico IDE.

Using putty for serial connection will be more convenient i guess. Opening the whole IDE just for serial monitor is kinda overkill

Ah, I remember the C development cycle. Edit, save, make, upload, boot, test then repeat. I've got PicoMite MMBASIC on mine and this same thing is Edit, Run then repeat. A much faster development cycle.

Gary you are the man. What is your profession?

Can it be programmed with Rust?

Would be okay if you showed us from scratch, I don't know how you opened that terminal from the start.

I get the error: couldn't connect to display "127.0.0.1:0" what should I do?

Trying this with Ubuntu 21.04 and latest Cmake v3.21.0 and the make process fails, "CMake Error at CMakeLists.txt:107 (message): The C++ compiler does not support C++11 (e.g. std::unique_ptr)". Re-tried with the same versions of Ubuntu and Cmake as you use in the video, same error.

Can't we use the other core in micropython?

Do Raspberry Pi Ltd have an ARM licence, or did they use a third party to design and manufacture the RP2040?

Boku no Pico Best Anime

The multicore example showed code to flash one LED at double the rate of the other, yet that didn't happen. Did you just use the wrong clip in the video?

my is keep crashing.Win version 20H2 Build 19042.1237

I am the 1K liker

Gary keep getting this error: E: Unable to locate package tkinter

Anyone out there one a purely Raspberry Pi Pico C/C++ Visual Studio video? Tired of all the Cmakes/Gits... Just want to build from scratch...

Getting through running all those commands was a nightmare, spent 4 hours just solving random errors. Why does it never just work 🤣

This puts me off ever attempting it.

It just doesn't work for me.... The xhost + fails, and same goes for the cmake .. and make commands..... Idk what you did but it just doesn't work for me

What an heresy using arduino to monitor rpi pico! 😂😂😂

*GARY!!!* *Good Evening Professor!* *Good Evening Fellow Classmates!* Stay Safe Out There Everyone!

I find C tutorials entertaining, is that normal?

So, at 14:34, why wasn't LED_PIN14 flashing twice as fast as LED_PIN25? I smell a rat! LED_PIN14 delays are set to 500ms whilst LED_PIN25 delays are set to 1000ms

I bet it runs about 20 times faster too than Python.

installing GB for programing a 32bit micro controller to blink an LED WTF we are in 2021 not 1990 :-)

Problems found: 1-unable to connect to display 127.0.0.1:0 To solve just install VcXsrv to windows... 2-pico-project-generator claims about CMAKE_CXX_COMPILER not defined To solve in the same terminal you run pico-project-generator do this exports: export CC=arm-none-eabi-gcc export CXX=arm-none-eabi-g++ 3- Now I am strungling with: /build/newlib-CVVEyx/newlib-3.3.0/build/arm-none-eabi/newlib/libc/stdlib/../../../../../newlib/libc/stdlib/exit.c:64: undefined reference to `_exit' I have no ideia how to solve it yet... 4 - Item #3 was solved starting from scratch and following the Gary instructions from github.com/garyexplains/examples/tree/master/Raspberry%20Pi%20Pico/C in readme.md, and not instructions from video.

Thank you for this video on C on the Pico instead of that _dreaded_ Python shite. I hate Python with a passion because: 1. Python code is not backward compatible. Yep, that's right: all you hard work for a Python ver. 2 script won't do you any good in Python 3. Bye, bye hard work. C has been around since the 1980's and your code'll work forever. 2. It's a scripting language that needs the Python executable. It's not a programming language: you can *not* make actual programs with Python. 3. Python code ain't backward compatible. 4. Python code ain't backward compatible. It's utter and utter shite.

So frustrating! Been searching for a month now how to get started with this snake language. But NOWHERE is there any explanation of how to open the terminal window or WHERE to download it from. I think I should better stay with arduino?

Where did you learn how to make a project? This is not it the Getting Started C/C++ doc. Also, just my 2 cents, I'm an electrical engineer with an advanced degree and this workflow is kind of ridiculous for a hobbyist product. Oh, it's way off in chapter 8 lol I should have looked more closely. Man nothing in my setup matches the documentation. Honestly, just programming a real microcontroller in Code Composer and Flashing with a J-Link is easier than this. I've never been impressed with Raspberry Pi products

This has turned out to be more reasons why I am glad I don't use C!!!

0 progress. couldn't download most of the packages and execute many commands, I'm on windows 10 and he's just showing ubuntu linux commands

First

I like your vids a lot but you talk too fast !!! Why rush ?

Jeeeez... there's nothing new or special about this pi. It's 20 year old tech. Why don't they innovate? Here's an idea... build a 5ghz wifi radio, on an ARM cpu for $2.

Needs to be made simpler - some write a GUI like Code Blocks for the pi