Troubleshooting • Re: how to get rid of false trigger using edge detection
Hello and thank you very much for the replies!All switch wires were disconnected from the pcb, only the ribbon cable from the raspberry to the pcb remained connected, it's a 20 cm ribbon cable, yet...
View ArticleAdvanced users • Re: Preventing reading from OTP
Probably not.Anything you can do to the OS can be trivially bypassed by using a fresh installation except secure boot but that's only supported on some Pi models.Statistics: Posted by thagrol — Mon...
View ArticleC/C++ • Re: Initializing a GPIO bitmask for use with the SDK functions
A more readable way of creating the bitmask:Code: // You can also use the shifts directly if you prefer.#define BIT(n) (1u<<(n))uint32_t gpio_bitmask = BIT(22) | BIT(21) | BIT(16) | BIT(15) |...
View ArticleOff topic discussion • Re: Vacuum Fluorescent Display Emulator
If I was doing this, I'd consider using a Pico with maybe three SPI OLED displays - one for each of your character groups.I'd need some level shifters from the 5V of the Z80 chipset to the 3.3V of the...
View ArticleCamera board • Re: The raspi5 lens shading adjustment seems to have no effect?
If I was going to try to "hack" the tuning tool myself, I might go to this bit of code.This is where it separates out the 4 colour channels and stores them. I think if you were to find the first "OK"...
View ArticleTroubleshooting • Re: No sound on Raspberry PI 3 B+
I have now the following version installed:PRETTY_NAME="Debian GNU/Linux 12 (bookworm)"NAME="Debian GNU/Linux"VERSION_ID="12"VERSION="12 (bookworm)"VERSION_CODENAME=bookwormID=debian Kernel: Linux...
View ArticleTroubleshooting • Re: RPi4+Bookworm: How do you get video to play smoothly in...
I think you misunderstood. The videos are coming from a source on the Internet but they have their own proprietary (as far as I know) player that only seems to work in Firefox or Chromium, it is not...
View ArticleTroubleshooting • Impossible to get rid of under voltage errors (3B)
Hello everyone,I have a 3B Pi that has been giving me non-stop undervoltage errors. I started by buying a generic usb power supply and that had issues. Fair enough...I then bought an "officially...
View ArticleGeneral discussion • Control app on Raspberry from PC
Hello,I'm going to start a new project and I'm thinking about the architecture and tools.I'm wondering if it is possible to do a thing I have in mind and would like to ask your opinion.I would like to...
View ArticleClik here to view.
Troubleshooting • Re: My TV won't recognize the signal from my Pi 4
Unplug everything from the 4B. Remove the micro-SD card. Plug the TV into HDMI-0. Power on the TV and select the appropriate HDMI input. Plug power into the 4B. Does the diagnostic screen appear? If...
View ArticleC/C++ • How to implement a loop to read sensors
Hello,let's suppose we want to read sensors, button press or other inputs from external devices using the Raspberry Pi.To achieve this I think I should implement a loop (let's suppose to use C++) and...
View ArticleC/C++ • Re: How to implement a loop to read sensors
Hello,let's suppose we want to read sensors, button press or other inputs from external devices using the Raspberry Pi.To achieve this I think I should implement a loop (let's suppose to use C++) and...
View ArticleGeneral discussion • Re: Control app on Raspberry from PC
Hello,I'm going to start a new project and I'm thinking about the architecture and tools.I'm wondering if it is possible to do a thing I have in mind and would like to ask your opinion.I would like to...
View ArticleBeginners • How to install Anydesk on a Pi 5
Forgive me for a topic that has been cussed and discussed. However, in my research, I have not been able to find straight forward instructions on how to properly install Anydesk on a Pi 5. I would...
View ArticleTroubleshooting • Re: Sending 3.3V from one RPi to a second RPi's GPIO stops...
Thanks so much. I hadn't even considered that the HDMI ports would be doing that. I just saw that it worked when testing with monitors, and didn't think about the fact that the circuit made no sense...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Can ADV7282M work with RPi4 at all ?
Hi guys,since nearly a month we fight to achieve ANY picture from a/m chip (first we have connected EVAL-ADV7282AM board to camera connector) and our observations are as following :1. activated driver...
View ArticleTroubleshooting • Pi 4b issue with the scaling the display
Hi,I've seen this issue pop up a lot over here, but no solution has helped me so far. I have a RPi 4b 1.1 and a Waveshare 7in 1024x600 LCD, 99% certainty that it's this one. The issue is, the Pi is...
View ArticleMicroPython • flash partition for read-only storage
on esp32 they have this partition system to separate application/.py files from storage https://docs.micropython.org/en/latest/ ... .PartitionI'm after a way to save some static meta-data that...
View ArticleTroubleshooting • Re: Pi 4 wifi works for a few days then I have to reinstall OS
So I rebooted for a perfectly normal reason and now it will not reconnect to the network no matter what I have tried, just like before, only this time it has happened after a deliberate action by...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Re: Can't find any Bluetooth devices
Yes, I clearly remember that I used a bluetooth mouse with the PI, however that was a long time ago. I haven't used my PI for a while so I ereased the SD card, reformatted and created a new image with...
View Article