This whole series is a truly exceptional education resource on using PIO & state machines with the Raspberry Pi Pico. Thank you for posting👏

It's just what I was looking for, I really appreciate the time you give us with these explanations. Greetings.

Thanks for making this video, David! I just got a few Picos and I’m excited to continue your series and get to making some interesting projects! Edit: Forgot to add that I’ve seen dozens of PIO videos in the past few months and yours by far is the best! Clearest explanation and demonstration I’ve seen!

Excellent analysis, sir!

Thanks David. I like and appreciate your videos very much. Please keep it up!

Excellent series! thanks!!

The grandpa I never knew I needed. Great video sir, I was trying to program PIO this helped me to understand what I was actually doing wrong. Thank you I will be waiting for next part.

Thank you for your investigation about instantation. I believe that is very important to program microcontrolers with optimum and fast data transfer through GPIOs. This method accelerates the job by using independent machine states further than registers (like arduino). Thank you again.

Who says old dogs can’t learn new tricks (and teach them exceptionally well too)! You’re a genius! Thanks for the help understanding, your teaching is concise but understandable.

This is the kind of Pico project I'm interested in! Instant sub.

Great video! Thanks!

Great Video. Well Done !!

This is just what I wanted Thanks David. My best regards Chris

Finally someone showing how to control multiple pins. All of the examples I could find are single pin. I was able to use this to make a pio LCD driver. Next I want to make a 8080 parallel driver for a TFT display I have on hand.

You're a great teacher!

I've coded (copied) and called a PIO blinking LED example from within a C++ program. I don't know C++ very well and find it tricky, but using PIO took me to whole new level of tricky. Good video, well explained and you've got my sub.

hey this is great stuff! subbed!

I had looked at the PIO documentation which I found tricky to understand. Your explanation makes sense to me

For some reason this is the only place I've been able to find parallel out to pins example. Thanks, David. Very helpful. Question: Why do you need the autopull=True, pull_thresh=16 in the @asm_pio? Because you already have pull in the program.

I too had difficulty saying Instantiation to students during lectures in the UK... In the end I used "In-Stan-See-Ay-Shon" Great walk-through of PIO State Machines - Thank you.

Love the Heathkit Instruments! I built many, The world needs another Heathkit like company!!!!

Thank you a lot.

Great job. You make me this stuff understandable. Could you please make some example about pinsdir ? I'm interested in parallel bidirectional transmission where the direction of the data changes in real time.

Thank you

...and I thought the documentation for pico is awesome, but this video brings it to the next lvl. Thanks David I should finally build some project around the pico, looks like it should be the goto option for timing sensitive applications. I am rather surprised that I did not find a single example where PIO would be used as a counter tho, I guess noone needs rotary encoders these days.

Love the End Fligt. Flite, flaeyt, lordy 😁👍🏻👍🏻Instantaneous Flight 😎

Thank you for this Video and the 'instantation'! weakbit

the little raspi pico super hero reminds me of Captain Zilog for the z80 stuff lmao. i love it

Hello David, thanks for the great explanation! Could you please also post the respective code sample. That would be great. The Github link does not work.

Very well done, easy to understand!

Working with Pico W means changes. One pin important for testing is onboard Led. Normally was Pin 25, but now for Pico W is connected to infineon chip at WL_GPIO0. In micropython can be addressed like Pin("LED") or Pin("GPIO0"), but... if you try to use that nomenclature in StateMachine() instatation... set_base=Pin("LED") o set_base=Pin("GPIO0")... boom! no way. And.. of course, no documentation from raspberry SDK's, even in Pico W specific datasheet. I believe that for a board good for experimentation, the change of onboard Led is going to cause some headakes. Thanks for your excellent videos!

Hi David, I hold this in my memory, not dive into the PIO yet. There was mentioned somewhere that one of the PIO examples was BUS communication .... let me lookup ... hm... RP2040 datasheet, page 330 mentioned "8080 and 6800 parallel bus" however I did not found it in examples. The PIO is very hard to wrap mind around, and the documentation is hard to understand for me. The learning curve is very flat. Looks the key point is the "3.5.6. GPIO Mapping" on page 359

Nice intro

Can you program PIO to do direct memory access? Direct access to the main memory of the main processors that is? High quality stuff, nice work David.

Oh yeah, like the ceramic chip illustrations. Bet they are your chips too? :)

Hello, thank you for this video. I am very new to electronics, but for my project I need to get my hands on it, is it possible to have a tutorial for the raspberry Pico to play videos randomly after activating an ultra sound sensor if it Please ?

Good morning David from CT, USA. Great video series on Pi Pico. Would you be interested in doing a Pico-based hardware/software project in C on commercial basis? Kindly let me know. Best wishes. Ashok

Thanks, like for great manual. But how can you fit 500 into 8 bits? I mean "for from 0 to 500", but you mapped only 8 PINs, so maximum value is 255.

Wait wait... so the FIFO registers are buffered in a way where the data can't be corrupted by my code not accounting for timing/synchronization? The PIO program will just either use the old number or the new number depending on timing?

It would be nice if reorganize your playlists in chronological order and by topic. The one containing this video is partially sorted with a few non-PIO specific videos thrown in, making it difficult to follow along. I had to create my own playlist so I can reorder them. A big benefit of having organized playlists is that you'll rank higher on search results and subsequents video parts will show up on the viewer's queue, which increases your view count.

Great video! What I didnt understand is the part where microcontroller is communicating with this pio with .put() command. Where this i value is sent to?

Why didn't you use that scope behind you?

I believe the RP2040 will cause all other Processor companies to introduce PIOs, PIOs are just Too Useful not to!