Showing an image on screen attached to Pi via SSH
I am running a raspberry pi3b+ via ssh. There is a hyperpixel4 screen by Pimoroni attached to the Pi and it's working fine. I am trying to display an image on the screen attached to the Pi with a...
View ArticleHow do I send user's wifi credentials to my RPI wirelessly?
I am working on a project which would require me to connect my Rpi 0 w to my home wifi. I want to send the pi wifi credentials(ssid and psk) over my phone the very first time and then on subsequent...
View ArticleRaspberry Pi is set to "Desktop Autologin GUI as user", but does not work
I have a bunch of RPi 3B+ that are set to "Desktop Autologin GUI as user XYZ" using the raspi-config tool. The RPis all run headless, but need the desktop GUI up and running for remote desktop sessions...
View ArticleClik here to view.
Pi Pico SPI Interrupt only fires once
I have set an interrupt for spi0 which fires only once.Here is my entire code:int main() spi_init(spi0, 1000 * 1000); spi_set_slave(spi0, true); gpio_set_function(PICO_DEFAULT_SPI_RX_PIN,...
View ArticleClik here to view.
Phantom events on Pull-Down Button
I’m the author of this project, an automated feeding device controlled by a custom 4-button keypad.The device is in use 24/7, since over a year. In rare cases I‘ve noticed fake button events.To be more...
View ArticleRaspberry Pi 4B giving 0.3V output when GPIO is set to True or High
I have a Raspberry Pi 4B, 4GB version. When I try to run the following code it gives 0.3V output. I mean it works, on-0.3V, off-0V. But I need 3.3V output. I measured it with a voltmeter, as the...
View ArticleBalenaFin v1.0 wifi works on Stretch but not bullseye or buster
I have a balena fin v1.0 which used to run stretch. It used to perfectly show all available wifi (2.4G and 5G). However I was not able to have the same on the buster image when I got it back in 2020 so...
View ArticlettyAMA0 serial port error
I'm trying to get gps data through ttyAMA0 serial port.Sometimes I could get gps data but I also get errors such as OSError Error11 resource unavailability.It used to be working but I get errors after...
View ArticleBlanking the local terminal on boot
Could anyone help me blank the local terminal on bootup? I need the screen completely blank before a fullscreen app opens.I've removed everything but I still have -pi@raspberryPi:~$I can manually...
View ArticleChromium always opens popups in the center of the screen regardless of...
On my pi, Chromium always opens in the center of the screen. I discovered this when trying to open a popup at a specific location on the screen using the following javascript:window.open("some url",...
View ArticleOpen app at a specific location on screen
I want to open an instance of Chromium at a specific location on the screen and at a specific size (width and height). I figured this would be pretty straightforward but in all my searching I am just...
View ArticleRaspberry pi not executing files
I am using a Raspberry Pi4. When clicking on an executable (not .exe) file, it says to execute or execute in terminal. If I click either option, it seems like it's opening, then it immediately closes....
View ArticleHow do I run picam?
I am trying to use picam on Raspi 5 with an atteched camera module and I get the following error:/home/myUser/picam/picam: error while loading shared libraries: libcamera.so.0.1: cannot open shared...
View ArticleRaspberry Pi Zero W UART, Bluetooth, and USB
I have a Raspberry Pi with Bluetooth using the /dev/ttyAMA0 and a UART using /dev/ttyS0. Is it also possible to use the USB as another UART? Are pins 14 and 15 tied to the USB as well?
View ArticleCQRobot Ocean: MCP23017 IO Expansion Board - "No pull up found"
I've got an IO Expansion board made by CQRobot that I'm trying to get working, but I can't get i2c to initialize. Here's the board:...
View ArticleClik here to view.
Cross compiling file cannot execute: required file not found
I am struggling in trying to cross compile C program using wiringpi library in the ubuntu host, then transfer it to raspberry pi 4. My instruction used old version of wiringpi, which is not available...
View ArticlePortable power RPi 3B+
What's the best way to power a RPi 3B+ in an open field?Also, how reliable are powerbanks (5V/3A) in the long run? A constant "Low voltage" thunderbolt on the screen cannot be a good sign, I suspect.My...
View ArticleClik here to view.
alimentazione tramite pin usb
I would like to power a Raspberry Pi via the USB pins between PP1 and PP2. A guide said Don't bypass the RPi power fuse. what does it mean
View ArticleCrackling noise with external soundcard microphone input
I have a Terratec USB soundcard connected to my RPi4 running bookworm.If I usearecord -f cd -d 5 test.wav I get crackling noises with my microphone.If I specify the device with arecord -f cd -d 5 -D...
View ArticleHello, I can't seem to identify the problem of why my ECG value(AD8232) is...
import machineimport timefrom blynklib import Blynk# Initialize Blynk with your auth tokenBLYNK_AUTH = 'fgVF4IWzS-RFyKmb8DvNTKfm8Rwgt0JU'blynk = Blynk(BLYNK_AUTH)adcpin = 4sensor =...
View Article