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Troubleshooting • Stepper motor killed my EEPROM and USB ports? Help autopsy...
I've built a project that uses Processing on my RPi4 to read a rotary encoder and then turn a stepper motor until the motor's own encoder value matches the original input. In individual code snippets,...
View ArticleTroubleshooting • Re: Speed Issues on RPI 4B
I think the slow Raspberry Pi goes into an I/O wait state and while waiting the CPU clock is reduced to save energy. It's possible the SD card on the slow Pi is slower or about to wear out. If running...
View ArticleOff topic discussion • Re: COB LED Power Supply selection
The different voltage and current ratings are for USB-PD. If the device connected does not have a USB-PD control chip to negotiate the different PD profiles with the power supply, it will only output...
View ArticleCamera board • Re: Raspistill -drc vs. rpicam-still --post-process-file drc.json
3 seconds is already a great step up. I will check it today, will also try setting exposure time manually.Thanks!MarekStatistics: Posted by mareksaw — Tue Sep 10, 2024 6:32 am
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Interfacing (DSI, CSI, I2C, etc.) • Multiple MLX90614 IR temperature sensor
I need to use 2 IR temperature sensors that have the same Slave Address (0x5A). The sensor that I'm using is MLX90614.I gave up on trying to change the Slave Address for one of the sensors to...
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日本語 • Re: リレー回路の接続数について
大変丁寧な図解りのお返事ありがとうございました。リレーユニットというのは、扱いが難しい物なのですね。リレー回路の接続数に関しては、機種にもよりますが２０個以上付くみたいです。あと12Cというインターフェイスを使えば、もっと増やせるようですので何を使えばいいか方向性が見えてきました。お返事ありがとうございました。 Statistics: Posted by kasiwazakinet — Tue...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Re: Multiple MLX90614 IR temperature sensor
Have you included pull-up resistors in your circuit? From memory, the overlay doesn't enable internal pull-ups because they are unlikely to be strong enough to be reliable.To confirm that some...
View ArticleGeneral discussion • Re: No 'New Posts' ?
We've now upgraded the forums to the recently released phpBB 3.3.13 which may fix this issue:An issue that was introduced in 3.3.12 and resulted in the “new posts” page being updated too often that...
View ArticleTroubleshooting • Can ping a Pi Zero but can not ssh
There were similar topics ( like viewtopic.php?t=320111) but my problem is different.I have an unattended Pi Zero which uploads images and environmental conditions to a server. Recently it stopped...
View ArticleOff topic discussion • Re: Pls Recommend a Wirless Keyboard From Unknown Company
I've tried a few keyboards from unknown manufacturers, but the experiences were unpleasant. So, I can't recommend the ones I've tried in the past. I ended up going back to Logitech, but I'm interested...
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Beginners • Re: @thagrol? Non GPIO 3 start up shutdown pi zero 2w?
For me it works perfekt. I would like to discuss it, but if think it's overkill at all it makes no sense. - Because of the LED the resulting resistance is nearly 1.4kOhms (The LED helps to visualize...
View ArticleOther projects • Re: Raspberry pi control of vehicle flashing lights (I’m a...
I don't want to be that guy, but you should probably stick to approved equipment. Seriously, this sounds cool for a movie set, but not for real life.Statistics: Posted by ame — Wed Sep 11, 2024 6:45 am
View ArticleBeginners • Re: Non-blocking reading of stdin or hidraw* on headless RPi
I'm no Python expert, but nonblocking read and readline() apparently don't match.Have a look at this:https://stackoverflow.com/questions/217 ... n-blockingStatistics: Posted by deepo — Wed Sep 11,...
View ArticleGeneral • Re: I2C read on c sdk vs Micropython in Pico
Hey, I was out on holidays so I was not able to test and post updates. So, I removed the following line and tested but still not working.Code: bi_decl(bi_2pins_with_func(PICO_DEFAULT_I2C_SDA_PIN,...
View ArticleTroubleshooting • Re: Can ping a Pi Zero but can not ssh
Hmmm... the Pi started reponding again this morning. Below is the log. Something happened aprrox. at 16.17 on Monday September 9 then the Pi resumed working approx. at 3.35 today. There are errors at...
View ArticleTroubleshooting • Re: LCD screentouch doesn't work anymore
Sorry, it was a hardware problem. Before I made the update, I cleaned the touchscreen with alcohol and water. The touchscreen wasn't probably dry when I boot the Raspberry Pi. But today, it works...
View ArticleTroubleshooting • Re: Pi 5 won't boot Pi 4 SD card (Bookworm)
I am glad you got it to work like this, I see so many topics on this forum from people who start from scratch and then have all kinds of issues because their old installation is wiped and Bookworm has...
View ArticleSDK • Setting PICO_BOARD in CMakeLists.txt since 2.0.0
In a project that I know will only be built for the PicoW, I could do this in CMakeLists.txt with all SDK versions prior to 2.0.0:Code: include(pico_sdk_import.cmake)project(myproject C CXX ASM)#...
View ArticleSDK • Re: Setting PICO_BOARD in CMakeLists.txt since 2.0.0
And yes I deleted and re-built the build directory before trying 2.0.0.Statistics: Posted by slimhazard — Wed Sep 11, 2024 7:21 am
View ArticleTroubleshooting • Re: Raspberry PI 5 won't boot
Try updating the firmware.Statistics: Posted by DougieLawson — Wed Sep 11, 2024 7:35 am
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