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Raspberry Pi - How to Handle GPIO Interrupts with Python 3
Рет қаралды 15,231
Күн бұрынLearn how to use GPIO interrupts on your Raspberry Pi, using the RPi.GPIO library. Step by step explanation for both wait_for_edge() and add_event_detect() functions.
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0:00 Intro
0:18 Circuit with Raspberry Pi and push button
0:55 How GPIO interrupts work
2:21 Setup the GPIO
4:08 Interrupts with GPIO.wait_for_edge()
6:35 Interrupts with GPIO.add_event_detect()
12:34 Use GPIO.BOTH to detect RISING and FALLING in the same interrupt
14:36 Outro
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@davidjohnston5329 Жыл бұрын
Super video, this makes me want to we watch some more of your content!
@projectjam7020 9 ай бұрын
Great video mate.
@norbertbans Жыл бұрын
Well explained and well deserved for the like and the subscription
@IZZY3201 2 жыл бұрын
Great and detailed video, quality work!
@dravera2284 Жыл бұрын
Thank you for the video. I'm confused about what bouncetime means
@JustRollin Жыл бұрын
It disables the interrupt call briefly so that a single button press does not trigger multiple times.
@qzorn4440 Жыл бұрын
A most excellent GPIO callback demo. Will this work on the newer Orange Pi-5 Debian-Bullseye Python? Thank you.
@RoboticsBackEnd Жыл бұрын
Thanks! Can't really tell as I have not tested the Orange Pi 5, but I guess this should be quite similar
@ShreedharShah Жыл бұрын
I am currently using Quadrature encoder so I wanted to monitor two pins simultaneously using the event functions to see which pin gets the rising edge FIRST. Please help
@dnabuzz69 Жыл бұрын
Thanks!
@RoboticsBackEnd Жыл бұрын
Thank you for your support!
@Debraj1978 2 жыл бұрын
Is this a real interrupt? I mean, if I am running this python script, will the CPU be completely occupied with reading GPIO, or it actually uses the interrupt feature of microcontroller?
@jozefsoucik3115 4 ай бұрын
i am getting error: Error adding event detection: Failed to add edge detection . By using polling method on button works fine but somehow cant figure out what is causing failing edge detection when trying to use interupts. Any suggestion?
@tiendungnguyen7251 Ай бұрын
this can be fix by running these: pip3 uninstall rpi-gpio pip3 install rpi-lgpi
@MrSirPain 2 жыл бұрын
I have a function that takes over 10 seconds to run. So I need to disable the GPIO Interrupt until the function has done its job, then reenable the GPIO Interrupt. How can I do this?
@camilocano6531 5 ай бұрын
love u
@Indian0333 2 жыл бұрын
sir how to print emoji in raspberry pi tkinter gui ?
@jace_Henderson 2 жыл бұрын
My Pi keeps crashing once the line GPIO.setup(pin#, GPIO.OUT) Is introduced and I can’t figure out why. Still does it with absolutely nothing connected.
@dalesmith8666 6 ай бұрын
when I hear the word Python, I go away. Why not do this in C or C++. Also from what I've read, the Linux kernel does not provide interrupts. Now I'm confused.
@RoboticsBackEnd 6 ай бұрын
Linux does manage hardware interrupts: forums.raspberrypi.com/viewtopic.php?t=348888 Then, maybe you hate Python, but that's a much lower barrier to entry for lots of people, and it can make prototyping faster :)