Unanswered Questions
212 questions with no upvoted or accepted answers
3
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0
answers
884
views
Accelerated Numpy on Pi 3 B+
I'm looking to do some work with NumPy on my Pi 3 B+, and I'm not sure what the deal is with optimization, blas, etc.
I installed libatlas using:
sudo apt-get install libatlas-base-dev
Following ...
- 6,357
2
votes
0
answers
1k
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Connecting a RFID-RC522 with Raspberry Pi 5
I bought a new Raspberry Pi 5 for a project that has RFID-tag reading and writing functions. I tried using some old python scripts(MFRC522-python) that uses RPi.GPIO to interact with the IO pins but ...
CommunityBot
- 1
2
votes
0
answers
59
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How can I get my python program that uses the requests library to run on boot via the crontab
I am working on creating a python script to retrieve data from a server using the requests library, and then display it on an adafruit led matrix using a raspberry pi. I have a program that functions ...
- 21
2
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0
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739
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Need to take a screenshot headless
I have a weather station and take a screenshot of a webpage (windy.com) once an hour to integrate into my display which runs on a Pi 3
It was working perfectly until I had an SD card crash and had to ...
- 21
2
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0
answers
1k
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ALSA errors on raspberry pi 4
So i'm trying to make a virtual assistant on a raspberry pi 4. I have coded the bot to work on my windows machine but now I'm running into errors while using the raspberry pi I figured out which part ...
2
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0
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746
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Installing cv2 for python3.7
I've been trying to get opencv to work on my raspberry pi zero w but no matter what I do it doesn't work. I'm using Raspbian Buster Lite (headless) and each time I fail to get opencv to work on the pi ...
- 4,424
2
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0
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2k
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Hardware controlled RTS on a Pi4 not working accurately
We need to use RS485 to talk to one of our custom tools. We need to use hardware controlled rts/cts. I've read so many articles about this but nobody ever says it works for them with fast timing and ...
- 21
2
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0
answers
803
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Waveshare ADDA (ADS1256) full scale input issues
My question is about a problem of full scale output with the Waveshare ADDA ADS1256 card.
I use the Waveshare High-Precision AD/DA Board based on ADS1256 on a Raspberry Pi 3b and the Python3 examples....
- 31
2
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0
answers
56
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How to run 3 Input scripts from 1 script
I've got an alarm system with 3 inputs and 3 outputs. But so far each input is controlling the outputs from it's own script. I did this because I wanted to get one thing at a time working on its own. ...
CommunityBot
- 1
2
votes
0
answers
477
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Detecting “No Mouse Movement” in python on Raspberry Pi
So this is going to be a bit confusing but using a basic loop i can detect keyboard and mouse inputs using the following:
globals()['keyboardEvent'] = evdev.InputDevice('/dev/input/event0')
globals()...
2
votes
0
answers
453
views
PiCamera python : buff/cache memory keeps increasing
I need to take a picture in each second in an infinite loop.
I've wrote 2 different python scripts: one with camera.capture() and another with camera.capture_continuous()
In both cases, I see the ...
- 17.3k
2
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0
answers
2k
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Difference between Thonny and Python 3 (running some code)
I'm just starting with the pi and to be more clear I'm spending time working with the Raspberry Pi Workshop for Beginners series on Youtube.To write an run code we use the Python 3 IDE but I don't ...
2
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0
answers
1k
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Enabling I2C resulting in error Raspberry Pi
I am trying to use MPU 6050 on raspberry pi. For that I enabled i2c on raspi. But after that whenever I am trying to check the modules on my Python 3 or 2 shell
for e.g. when I run help('modules'), I ...
- 121
2
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0
answers
2k
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Segmentation fault, running out of memory? PyQt5
I am programming code to display camera feed with my raspberry pi 3 and Raspbian. Strangely, sometimes the code shows the video and sometimes i get the Segmentation fault error. I used gdb to find ...
- 31
2
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0
answers
11k
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Want to Read COM Port Data and Write into TKinter Text Window
Using Python3, I want to read data on a serial port and display it into a tkinter GUI text window (not only the shell). Pretend I am trying to make the equivalent of a serial port character display.
...
- 34.9k