General • Re: Switching Circuit
Does the buzzer only work when powered in one direction? Is it damaged if reverse powered?You could get rid of the 3.3V line and the transistors, and hook up the LED and buzzer in opposite polarity....
View ArticleGraphics, sound and multimedia • Re: Setting framebuffer size issue
..I use the following HDMI 3.5" touchscreen with the native resolution 480x320:https://www.waveshare.com/wiki/3.5inch_HDMI_LCDIt's installed on Pi 3 running the latest 'bookworm' OS Lite. In the...
View ArticleRaspberry Pi OS • Display freezes on Bookworm after a few hours but my...
I am working on an RPi4-4GB that will be used in the pump shack of a small community water system. The Pi has a USB Labjack data collection device to read pressure sensors, digital flow meters, float...
View ArticleTroubleshooting • Re: Raspberry Pi 4 undervoltage using XL4015 buck converter
Hello @memjrSorry for posting double timesI am actually new to this forums and didn't knew that the posted thread gets reviewedI thought the forum isn't posted so I wrote it againStatistics: Posted by...
View ArticleRaspberry Pi OS • Re: Display freezes on Bookworm after a few hours but my...
did you overclock the gpu, bookworm does not like that.Statistics: Posted by kerry_s — Mon Jan 15, 2024 5:33 am
View ArticleGeneral discussion • Re: "Powering Raspberry Pi 4 via USB-C: Need...
Hello friends,I'm working on a project with my Raspberry Pi 4 device, but I have a question. Since I use the USB-C input to connect it to the USB port, I need to supply power in a different way. I...
View ArticleRaspberry Pi OS • Re: Pi os bookworm no icons
menu -> preferences -> appearance -> default -> mediumrebootStatistics: Posted by kerry_s — Mon Jan 15, 2024 5:36 am
View ArticleCompute Module • Re: Raspberry CM4 updating EEPROM - sdcard issue
Having another Pi around - even a Zero will do - is beneficial!Pi Zero 2W is on its way to me - ordered & by tuesday I guess its here.Is it Plug n Play -or- do I need to install anything...
View ArticleTroubleshooting • Re: XL4015 buck converter giving undervoltage warning
Also the 5v pin shows lower voltage than input via xl4015Statistics: Posted by asutosh5941 — Mon Jan 15, 2024 6:30 am
View ArticleRaspberry Pi OS • RPI 5 pcie monitor
For the RPI 5 is there an app to monitor PCIE errors/correctable errors? I am testing PCIE Gen 3 vs Gen 2 and would like to know if there are any apps to monitor this?Thanks,GaryStatistics: Posted by...
View ArticleTroubleshooting • Re: Netatalk NTFS-3G TRANSFER - NOT ENOUGH DISK SPACE
Samba and SMB (now CIFS - Thanks Microsoft) would be the first choice. You could also use FileZilla and SSH to transfer the files from the MBP (not sure if FileZilla is available for Mac but it is in...
View ArticleGeneral • Re: Shared pins between PIO state machines. Multiple serial streams
Oh, it seems smoother now. Also noticed that I had a bug previously for mov X, 22 instead of set X, 22About the 22 bits - it is not 100% definite at this moment, but the data length is fully...
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Troubleshooting • Re: Tips on how to ask a question.
Nice try. I mean it.But people don't read stickies, I'm sure they won't be reading this on either and change the way they ask for help. Jaded, you are. But, truthful. I guess I just liked that old web...
View ArticleTroubleshooting • Re: Pi 5 fails to boot with two USB drives attached
Does it boot ok if you disconnect the HDD?yes - I don't even need to do anything else - unplugging the HDD leads to a proper boot from SSD - no reboot neededThen the combination of the SSD and the HDD...
View ArticleTroubleshooting • Transmit data from LoRa connected to Raspberry Pi
I am working on a project related to data transmission between nodes and a gateway. Currently, I am using 2 ESP32s and 1 Raspberry Pi 3B+ as nodes, and another Raspberry Pi 3B+ as the gateway. The...
View ArticleSDK • Re: Advice to get a float from user over serial and...
I settled on the below for the concept code. I used roundf() to deal with certain floats not being converted to the correct binary as shown on table 7-1 of the datasheet.Code: // minicom local echo...
View ArticleBeginners • Use raspberrypi.local when there is no internet?
I have been using raspberrypi.local to connect to my pi4 for a while, and everything seems fine. Recently when my internet went down, I can no longer connect to my pi using the same link. However, I...
View ArticleBeginners • Re: Making a GUI for the RPI CM 4 connected to a ST7789v TFT,...
What the driver does should be clear from the driver source - https://github.com/raspberrypi/linux/bl ... mipi-dbi.cSorry, will not google for your display data sheet!You must be looking at another...
View ArticleRaspberry Pi OS • Re: Warning from apt-key: Key is stored in legacy...
...However, you can move the existing key to the right place....I followed rpdom's steps with one change for fixing the pgdg key (imported when my Zero2 W was running arm64 Bullseye lite, now updated...
View ArticleAdvanced users • Re: Using I2C 5 and DPI 666 simultaneously
I have encountered a new problem with getting the software i2c reserved by the kernel. Im trying to use a goodix touchscreen with software i2c. Im using a custom dtoverlay for gt9110 from...
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