Category "raspberry-pi"

How do I connect a WiFi AP to an OVS bridge?

I have a Raspberry Pi where eth0 was attached to an OVS bridge and a client connected to eth0 and then through there to OVS and thence onwards. However, I'm now

Python OpenCV streaming from camera - multithreading, timestamps

I ran simple python script on Raspberry Pi 3. This script is responsible to open video device and stream data (800x600) to HTTP endpoint using MJPEG. When I rec

Remote debugging configuration: Java on Netbeans 12

I can successfully deploy and develop java projects remotely from a Windows machine on a RaspberryPi (Raspian). My IDE is Netbeans 12.6 which comes with the opt

Access point doesn't start with Raspberry Pi 3 built-in Wi-Fi

I have Raspberry Pi 3 and I use it as a Wi-Fi access point. I use Raspberry Pi 3 built-in Wi-Fi adapter for this. Until today, the access point worked. Today

Trouble transitioning to multiprocessing python code to cython

I'm running a program that takes real time data on a Raspberry pi 4. Because the program is quite demanding, the different functionalities are separated into th

Bill Acceptor to Raspberry Pi 3 (Python)

I want to connect my Bill Acceptor to the Raspberry Pi 3 and read a pulse. Is there any one who knows or have any idea how to make sure the raspberry pi reads t

hcitool lescan shows I/O error

I'm trying to do a lescan using hcitool on the raspberry pi. The command prints out Set scan parameters failed: Input/output error. I'm not sure, what ex

Running AWS CloudWatch logs agent on Raspberry Pi 4

Has anybody successfully run the AWS CloudWatch Logs Agent on a Raspberry Pi 4? When I run the script below, it appears to work, but the awslogs.service does no

Run librxtxSerial.so on Embedded Linux Device

I am currently trying to interface a RFID reader unit. The provided SDK offers a test project in Java. On my windows system it does work. The target device, how

Cannot find module cv2 when using OpenCV

I have installed OpenCV on the Occidentalis operating system (a variant of Raspbian) on a Raspberry Pi, using jayrambhia's script found here. It installed versi

(Adafruit_Python_DHT - Raspberry Pi) in get_platform RuntimeError: Unknown platform

I have a Raspberry Pi 4 connected with a DHT22 sensor, and I want to read data from my sensor. So I installed the library Adafruit_DHT sudo pip3 install Adafrui

Crontab in Raspberry pi doesn't run a very simple script

I'm new to Linux and I've been struggling with this issue for a while in my Raspberry Pi and had no success. First I wrote a simple script in /home/myfile.sh l

Can't access OVM Samba share MacOs / iOS (Invalid argument)

I have Open Media Vault set up on Raspberry Pi. I have connected an external drive, created the required shared folders, enabled SMB/CIFS. Everything works grea

How to install awscli version 2 on raspberry pi

sudo apt install awscli installs currently version 1.16.113-1 The official website (https://docs.aws.amazon.com/cli/latest/userguide/install-cliv2-linux.html)

Failed compile delegate Raspbian

i trying to compile the latest ver of Delegate on my rpi3 with this tuto (i use raspbian): https://its-more.jp/delegate/ftp/pub/DeleGate/INSTALL.htm but i have

Using GLAD for Raspberry Pi project

I am trying to figure out how to create a window for my project. I want to work with OpenGL ES and I found online guides on how to use X11 and EGL for creating

Raspberry Pi not connecting to available WiFi

As this is my first question actively asked here on the platform please go easy on me ;-) I'm using a Raspberry Pi Zero WH in my home network called "wocl". He

Stepper motor continues turning after code is finished

I am playing around with a Nema17 stepper motor on an Raspberry Pi 4 using Python 3.7.3 and a A4988 stepper motor driver. I run the code below and it works fine

What unicode characters are best for drawing a squarewave in a string

I am trying to represent a square wave pulse train in a string, from an array of stored GPIO events and timings. the code is working but I need better Unicode c

How to implement google mock to mock the C fopen function

I am writing a unit test for embedded C codes using google test/mock. The C function code looks like this. int readGPIOSysfs(int ioport){ ... FILE *f = fop