General • Pico interrupt handler hangs when displaying Waveshare eink display
Hello,I have really weird problem with my Pico development. I am building small meteorological sensor using bme280 and displaying the data on eink from waveshare. I have some success with this, mainly...
View ArticleBeginners • Case for raspberry pi 5?
I purchased a Raspberry Pi recently and it is operating nicely. I'm thinking of getting a case for the device, but have seen some negative comments about them; namely, that they just don't fit around...
View ArticleTroubleshooting • Colored remote buttons don't work in labwc
In Wayfire, I could define the yellow "A" button on my IR universal remote to open a custom menu, but Labwc seems to use a different method for reading keys. Wev says the sym is "NoSymbol", and evtest...
View ArticleRaspberry Pi Connect • Raspberry pi5 -Arm64 does not detect compass sensor
Hi All, I have pi5, on which using MPU9250 sensor to detect Gyroscope, Accelerometer & Magnetometer. For some reason, PI5 is not detecting the I2C bus for Magnetometer. Wire Connection...
View ArticleBeginners • Can't Run Script at Bootup
I'm trying to run a simple script to set the parameters on the serial ports (using stty to set # of columns, uppercase to lowercase, etc.). The script runs fine from lxterminal but I can't get it to...
View ArticleGeneral discussion • AI On My Raspberry Pi 5
I'm not sure where I should post this, but I was cuious about AI on my RPi 5 with 8GB of memory, so I flashed a spare SD card with the RPiOS and installed ollama on it. I was able to run...
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Troubleshooting • Problem When using canny edge detection
I am creating a program to give me a trackbar that can adjust the value of minv and maxv for the canny edge detection. Strangely, when I not include any resizing into it, it worked. When I resized the...
View ArticleTroubleshooting • Raspberry Pi Zero 2W not connecting to wifi but will...
HELP!I have been struggling with my raspberry pi for days now. First one was faulty (service confirmed) and I had it replaced. Now this one lets me install mainsail and I got it going but only on my...
View ArticleGeneral discussion • SMS Client ?
Hello everybody....I would like to know if it is even possible to make my idea : I have a USB 3G modem with registered SIM card. When I plug it in my pc, it brings up a webpage that lets me send and...
View ArticleTroubleshooting • Integrating the "C" script into initramfs
I was recently able to create my initramfs.img and run the following code in it:Code: #!/bin/shecho "initramfs custom script activate!"echo "Checking system hardware ID..."sleep 10mkdir -p /proc /sys...
View ArticleGeneral • Async function as IRQ handler triggers only once
Code: from machine import Pinimport asyncioasync def callback(p): print(f'pin change {p}')async def main(): p0 = Pin(20, Pin.IN) p0.irq(trigger=Pin.IRQ_RISING | Pin.IRQ_FALLING, handler=await...
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Automation, sensing and robotics • Raspberry Pi 4 doesn`t see Encoder`s signal
Greetings forum! In short about the project: I am using lika I41 encoder with an 8-wired cable (AB0 signal) which reads the revolutions of an engine. 3 of the encoder`s wires are soldered up to the...
View ArticleTroubleshooting • Pi 5 not booting: 0 long flashes with 2 short flashes?
Looking for guidance on how to troubleshoot. I strongly suspect I'm missing something very basic that this community can point out.I already plan to 1) try different power cords2) get a microHDMI...
View ArticleBeginners • Running a pi4 off of a computer usb port, is it possible?
I need to know whether i could run my pi off of my laptop's usb port because I want to do some prototyping on the go, does anyone have any useful information?Statistics: Posted by PhantomDev — Sun Feb...
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Beginners • Opening a terminal window at startup and getting it to run in a...
Environment:Raspberry Pi 5 8 GRaspbian 64 bit OS "Bookworm"Python 3.11.2I can open a terminal window just fine at startup by editing my .config/wayfire.ini file and adding the following beneath the...
View ArticleGaming • Retro pi is booting into terminal
I have recently been trying to put retro pi 4.8 onto my raspberry pi 2b using a 8gb micro SD card and when I try and boot the pi It goes straight to a terminal and ends with a command prompt with a...
View ArticleTroubleshooting • RPI5 USB3 port suddenly shuts down
Hi,I have the PI5 setup as a Bitcoin Node with the data on a USB3 drive. Suddenly for no apparent reason the USB3 port shuts down.The error is:Code: Feb 16 04:10:52 umbrel kernel: sd 1:0:0:0: [sdb]...
View ArticleOther projects • MCP23017 I²C Speed and Wiegand 26-bit RFID Reader Performance
Hi,I’m working on a project where I need to handle multiple Wiegand 26-bit RFID readers and expand my GPIOs. I am thinking of using the MCP23017 GPIO expander with I²C, but I’m concerned about the I²C...
View ArticleGraphics, sound and multimedia • ALSA Errors - Function working, can clean...
I am running Speech Recognition, using one of those cheap, white USB sound cards with a mic, and have Pocketsphinx as the recognizer. When I run the code, it spits out literally hundreds of ALSA and...
View ArticleTroubleshooting • Pi 5 intermittent 8 blink codes with Canakit 45W adaptors
I have four Pi 5's ordered from Canakit at two different times. The kit comes with their 45 W adapter. On power-up and reboot, I occasionally get the 8 short blink codes (sometimes blinking green,...
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