Raspberry Pi Pico W LESSON 103: Using Pi Pico PIO State Machine IRQ Interrupts

[@edSabio572]

Thanks Paul! Your explanation is very detailed and the homework challenging (Ouch!) ...Happy New Year!

[@paulmcwhorter]

The homework is a little more challenging than one would expect . . . so easy to do it with one button/LED. Have to think how to make three work.

[@edSabio572]

@@paulmcwhorter 🤕⛈️

[@urbansotensek4996]

This is so great Paul, please keep going! Your content is invaluable.

[@mangalarupasinghe]

Nice tutorial - Thanks Paul

[@lutzlo129]

Thank you very much, excellent lesson!

[@johnganci933]

Posted my solution to the homework. Nice exercise!

[@paulmcwhorter]

LEGEND!

[@craigflorin1071]

Enjoyed the lesson and have started working on the homework. I seem to have come across some of the "roadblocks" that you predicated. Love the challenge.

[@paulmcwhorter]

Great, I look forward to seeing your solution.

[@jameslewellen150]

Here is my comment on doing the homework on my channel. Thanks for doing these videos.

[@paulmcwhorter]

LEGEND!

[@johnganci933]

Finally understand the timing differences in the pio sweeping servo behavior I brought up in the comments in the lesson 99 video. Posted a video explaining the behavior. Also posted a comment in lesson 99 alerting anyone there of the new video. Will be deleting the videos that show the problem.

[@quaternion-pi]

great lesson!

[@paulmcwhorter]

Thanks!

[@NE_Robotics]

You’re the best teacher that I’ve found! Are you willing to do a course on circuit analysis? It’ll go perfect with the Arduino and Raspberry Pi lessons. Thanks for all the help!

[@paulmcwhorter]

Problem is to teach circuit analysis, you really need a two channel Oscilloscope, with A-B functionality. Right now, scopes like that are somewhat expensive, so scope cost would be a barrier for most people in a class like that.

[@NE_Robotics]

@ that is true, thanks though!

[@erikbartmann]

Hi Paul, you have great videos and so much of them! I have a question to a realtime plotting e.g. with pyplot in order to plot data with python on my Raspberry Pi comming from a mcp3208 ad-converter. Do you have a video that is dealing with that? Best, Erik

[@ricardoboza6880]

Probably you can do mov(pins, invert(pins)) and you can save 2 instructions?

[@kalidabdul6862]

Thanks paul

[@georgekanaan3949]

Hi Dear Paul, I hope someday set a video explaining FFT and how it works. With sound sensor piezo. Thank you very much.

[@VeryUsMumblings]

I fixed my homework! but I tried to put the link in the comment and it was deleted, so Iit's on my channel under the title: Button-LED w State Machines on Pico (Fixed). Thanks again! 👍 😄

[@paulmcwhorter]

LEGEND!

[@edSabio572]

Hi Paul! I actually got my setup to work. I can only say that I distributed the IRQ/LED sets among PIO0 and PIO1. I feel uncomfortable in posting on KZbin...

[@paulmcwhorter]

LEGEND!

[@giovannicicerchia4726]

Hi everyone, i want To know the interrupt of an arduino...

[@gdavids57]

I'm confused by the documentation which states each PIO block has 8 ira's but only irq0-irq3 are detected by Micropython and your statement that only irq0 can be detected by Micropython. Can you clarify?

[@paulmcwhorter]

You are not parsing the interrupts properly. Python can detect Interrupt zero on each state machine. Python can not detect the other ones. On one PIO block, it can detect 4 interrupts, the 0 interrupt on the four state machines.

[@VeryUsMumblings]

I'm handing in a partially finished homework. 😄 Thanks for the lesson. 👍 kzbin.info/www/bejne/Z4u7oX-Hf9Sci5o

[@arnoldschmucker9977]

Halfway did it. Not very happy with it. kzbin.info/www/bejne/qH7IlIWmqrl1sNU

[@paulmcwhorter]

Yep, now to get LED control down into the state machines as well. Dont give up.

[@VeryUsMumblings]

Keep going! 👍

[@patrickfox-roberts7528]

Thnx Paul