Questions tagged [python]
Python is a general-purpose, dynamically typed, object-oriented high-level programming language. Interpreters for versions 3.x and 2.x come installed on the Raspberry Pi's most popular operating system distributions.
3,218 questions
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Detect whether USB speaker is connected to my RPi 4B, in Python
I'm building a device that if in my Python program the USB speakers are not connected it directs sound only to the headphones but the device works differently in a different mode with not so many ...
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My motor encoder is rotating but on Rviz2, it didn't
I'm working on a custom LIDAR using TF Luna and rotating it using a motor with an encoder for mapping purposes. As the title says, the rotated angle is not being updated to Rviz2 , resulting in a ...
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Can't bind to AP interface in python when using create_ap
I've written a simple python server for an IoT electronics school project. A "raspberry pi 3 model B rev 1.2" acts as the local station/server. I'm looking to create an AP which esp32's ...
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How to unbind a GPIO pin
Hi Im working to make a car radio using a RPI5 with this Hat (version carpihat5 pro with dac+) with this project everything goes well but when I tried to add another GPIO pin to turn my amp on to his ...
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ESP32-S2 XBee Communication Issue - Sending Data But Raspberry Pi Not Receiving
I've set up a Zigbee IoT network using an ESP32-S2 Feather with BME280 as the sensor node and a Raspberry Pi with XBee 3 USB adapter as the coordinator. The ESP32 appears to be successfully sending ...
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Is this the right approach for my project?
This is my first Raspberry PI project. I'm trying it for fun and personal use for my home. I want to mount a device that detects a face from a short distance (maybe 1m and less) and initialize an API ...
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1answer
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- Errno 121 - Remote I/O error when sending data through i2c
I'm trying to send data to the RAM of a I2C LCD screen to clear the display (when I switch on the LCD and just after the init stage, many pixels are randomly initialized to 1 and not 0). I'm using ...
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Autocorrection of 1 wire system
I have 11 DS18B20 sensors distributed through my house checking temperatures of all rooms, as well as outside temperature. I check and data log from these every 5 minutes and have been doing so for ...
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Strange issues with using crontab to run a python script
I'm working on a project that needs to run headless - I need to run a python script "main.py" within a virtual environment at boot. I decided to use crontab to do this. My crontab line is as ...
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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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Raspberry Pi RFID, PIN & fingerprint project
Hoping someone can help. I am currently doing a school project using a raspberry pi to allow RFID scanning, then a PIN entry then finally a fingerprint scanner, all fetched from an SQLite database. ...
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Why doesn't python script redirect output to file?
I have a Pi 4 with bookworm, running a python 3 script. The python script generates logging output to stdout (to the terminal) when run from a prompt. I want to run the script from cron and capture ...
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can write but not read with SMBUS
I'm trying to drive an I2C LCD screen. I know the device address from i2cdetect -y 1 It's 0x3f. I reset the screen by setting LOW and HIGH the RST GPIO 4 (the RST pin is connected to GPIO4). Then I ...
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Raspberry Pi Pico OLED SSD1306 - No I2C Devices Found & AttributeError
"I'm trying to get my SSD1306 OLED display working with my Raspberry Pi Pico using MicroPython, but I keep running into this error: Traceback (most recent call last): File "<stdin>&...
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RPI 4 B gpio not working when usb printer is plugged in
I have an RPI 4 model B below is my code import RPi.GPIO as GPIO import time # GPIO pin connected to the COIN pin of the coin selector COIN_PIN = 24 # Setup GPIO GPIO.setmode(GPIO.BCM) GPIO.setup(...
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