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Newest 'gpio' Questions - Raspberry Pi Stack Exchange
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Learn more about TeamsQuestions tagged [gpio]
GPIO stands for General Purpose Input Output and can be used to receive and send digital signals to and from simple electronics from the Raspberry Pi.
3,393 questions
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-1
votes
0
answers
32
views
Broke my pi by changing password
I reset my password on the pi and now node-red wont work. The error is "failed with result exit-code". GPIO also is giving me an error, "RP1.GPIO.setup(self.__pin, RP1.GPIO.OUT) Rutime ...
0
votes
1
answer
51
views
GPIO Zero's when_pressed/released does not work when run from rc.local
I have made a simple script that uses when_pressed and when_released to read the value of a GPIO pin and writes it to file. It works as expected when run from terminal, but not when run from rc.local. ...
0
votes
1
answer
66
views
How do I protect a Zero 2 W from improperly connecting a 12 V Power Supply?
I acquired a few Zero 2 Ws, and wired up my Zero 2 W to a L298N controller, alongside four 3-6V DC Motors. I also wired a 12V power supply to the controller.
I ended up frying a few of my Zero 2 Ws ...
0
votes
1
answer
59
views
Cant run fuzzy logic code in raspberry pi: is GPIO incompatible with rpi5?
I wanted to run some python code which uses fuzzy logic on a Raspberry Pi 5.
Therefore I had to call the skfuzzy/scifuzzy library to do that - from there the problem seemed to occur. It seems like ...
0
votes
1
answer
24
views
Connecting RPI 4B to Adafruit FeatherWing RFM95W 433MHz
I wanted to connect the Adafruit LORA module to my RPI 4B.
I connected it this way:
RFM9x FeatherWing
Raspberry Pi 4B (GPIO)
3.3V
3.3V
GND
GND
SCK
GPIO11 (SCLK, pin 23)
MOSI
GPIO10 (MOSI, pin 19)
MISO
...
-1
votes
1
answer
103
views
12V output into GPIO
I am looking to wire this inductive proximity sensor to my Raspberry PI Pico W. I plan to power the sensor with a 12V source.
However, I obviously can't use the naive way since the sensor outputs at ...
2
votes
4
answers
173
views
Keyboard Matrix And Pull Up Resistors
I have a question about pull-up/pull-down resistors on the Raspberry Pi Pico.
To be as brief as possible - I am trying to create my own keyboard for the learning experience and I wanted to use the ...
0
votes
0
answers
155
views
pwmchip2 not appearing in /sys/class/pwm on Raspberry Pi 5
I have a Raspberry Pi 5 2GB. I just flashed the newest Raspberry Pi OS 64bit. I added dtoverlay=pwm-2chan to my /boot/firmware/config.txt and rebooted. No further actions where done on this system. ...
0
votes
2
answers
259
views
0
votes
0
answers
46
views
i2cdetect not detecting touchscreen
I have a Raspberry Pi Zero 2W and I'm trying to use this SPI + I2C touchscreen which uses the FT6336U driver with it. I've already set up the SPI part, but, when trying to detect the screen with GPIO ...
2
votes
0
answers
52
views
Asynchronously Detect and act on a GPIO OUTPUT pin change
It's easy to detect a GPIO INPUT pin state change with bash or python scripts. However I need to detect a state change of an OUTPUT pin (gpio 22) being controlled asynchronously by a different script ...
0
votes
2
answers
42
views
I want to open a door using RP3 A+, basically give 8-12 Volts 10W for 5 seconds using RP3 A+
I want to open a door using RPi3 A+, basically give 8-12 Volts 10 W for 5 seconds using RP3 A+.
I got this door lock and I want to connect it using my RPi, so that I give it the power it needs and it ...
1
vote
3
answers
88
views
Need one more 5V pin for my Raspberry Pi 5
I have two vibration motor specifically this: Easy To Use PWM Vibrating Motor Module, Vibration Module, 1 Pcs Mobile Phone Vibrator Module for Electronic DIY Kit
Could I just split the 5V and connect ...
-2
votes
2
answers
226
views
1
vote
0
answers
42
views
Realtime waveforms on a RasPi5 using python?
Is there a way (over in STM32-land, I would use double-buffered DMA banks) to output waveforms (4 pins in my case, though I'd like to do more) on a Raspberry Pi 5 in a continuous mode that won't go ...
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