Compute Module • I2C problem at 85°C / Clock-stretching
Hello,I am observing a problem with I2C. When the CPU temperature is increased to about 85°C the CPU starts to clock down. Only at these times I have I2C problems. The problems are manifested by the...
View ArticleCompute Module • Linux Reboot fail
Hello,I use a CM4 module in an industrial environment. I am observing a problem that the linux “reboot” command, after the CPU has performed the reset, no longer boots from the SD card.When I turn off...
View ArticleRaspberry Pi Connect • Connect failed to start, no screen
I did a fresh install of the July image for a PI 5. I've installed samba and locate and rpi-connect. It worked (screen) and then stopped.I've reinstalled rpi-connect and rebooted.I ran systemctl...
View ArticleTroubleshooting • Issue with Raspberry Pi 3 Model B+
I have purchased a new Raspberry Pi 3 Model B+ with a customized OS installed on the SD card. When connected to a monitor via HDMI and powered on, the Pi's green LED blinks continuously, but nothing...
View ArticlePython • Python & Portainer
I'm a complete newbie to using Python & Portainer, so here's a little explanation on my use case before I ask my question. I run a Pi4 as a Home Automation Server running Homebridge, and I'm...
View ArticleTroubleshooting • RPI CM4 and KSZ8795CLXCC
Hey!I've got an issue with CM4 linking with ethernet switch KSZ8795CLXCC. I've got 2 CM4, I/O board and custom PCB with KSZ8795CLXCC. The connection with the switch is transformerless through 100nF...
View ArticleAdvanced users • i2c expander
I am going to use this https://robu.in/product/pcf8574t-i2c-i- ... KgQAvD_BwE expander & i2c based 16*2 LCD display. How can I interface both? what are ready to use module that work in industrial...
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General • RP2040 Custom Board, doesnt run the code
Hi,We've created a custom board with the RP2040 and now we ran into problems running code. I've looked at other threads and tried applying what has been suggested such as lowering clock and changing...
View ArticleGeneral programming discussion • Start LED before LUKS password entry
Hey guys, i'm new to this forum and i'm not quite shure if this is the right section for this post.I'm having a problem to start a systemd service during the boot progress before the luks password...
View ArticleJava • Java Help with bitwise operators
I'm using borrowed code, that I sort of understand, but then I get a little lost.I need some helpCode: byte[] data = new byte[2]; data[0] = (byte)device.readRegister(0x32); data[1] =...
View ArticleGeneral discussion • I can't get pi apps to install on my raspberry pi zero 2w
I keep trying to install Pi apps on my Raspberry Pi Zero 2w but it keeps returning error messages. I tried both methods of installation found on the github page for pi apps, and I'm using the 64 bit...
View ArticleTroubleshooting • Pi4b works but no blinking ACT LED
Hi, my Pi4b, which was previously working on another OS, has stopped blinking. I've flashed the Raspberry OS and set it up (the screen works and firefox) but it won't set the location date and time....
View ArticleTroubleshooting • Strange behavior of startx
Good day every one,I get into a problem with startx on Raspberry Zero 2W. My python script can be start (GUI is displayed on the screen connected to HDMI port) from ssh remote connection. But when I...
View ArticleTroubleshooting • Raspberry pi 5 Constant Red Light not booting
When turning on the Raspberry Pi 5, if the red light stops, the power will not turn on.Is it a hardware failure? Is there any solution?video: https://youtu.be/Re7k0Yo4jh8The SD card contains the...
View ArticleCamera board • LINK_FREQ and PIXEL_RATE
Hi,From the source code https://github.com/raspberrypi/linux/bl ... c/imx477.cWhat are the following two macros defined based on? and what is the conversion relationship between them? Assuming 2 MIPI...
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Troubleshooting • [SOLVED] Pi 4B will boot from one m.2 SATA SSD but not from...
Hi, I'm continuing to research this but would appreciate some pointers.I am using: Pi 4B 1GBRaspberry Pi USB-C power supply32GB m.2 SATA SSD256GB m.2 SATA SSD2x m.2 SATA to USB 3.0 adaptersThe pi...
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Troubleshooting • Raspberry Pi Hardware Repairs
Hi,I have been in the process of upgrading my in car entertainment system from a Pi3 to a Pi4.The Raspberry Pi 4 was working fine on the bench. I have had a PiMoroni PHAT DAC connected (can't recall...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • PWM phase offsets not working on RP1
Hi all!I'm working on a project on a Raspberry PI 5 where I need two synchronised PWM's operating with a phase shift. (Software PWM does not cut it for this application I'm afraid.)My problem is that...
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Troubleshooting • Connecting pi to tight vnc
Hi I have been using realvnc to control pi servos from my pcs and ipad but with the recent real vnc charges i am trying to change to tightvnc without any luck after several hours of trying.I am using...
View ArticleAdvanced users • RTC battery charged when powered off and POWER_OFF_ON_HALT=1?
Does the RTC battery on the Pi 5 still get charged when POWER_OFF_ON_HALT=1 AND WAKE_ON_GPIO=0 are set and the board is powered off?Statistics: Posted by andrum99 — Thu Aug 01, 2024 11:44 am — Replies...
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