Troubleshooting • Re: RPi 4B fails to boot when two specific USB serial...
So i kinda need a USB optocoupler that acts as a active Isolator inbetween, right? is there Something Like that existing?Statistics: Posted by Psych0D0g — Thu Aug 28, 2025 4:52 pm
View ArticleGeneral discussion • Smallest pi to run Linux ping & wget|curl against...
HiPlease advise the one that seems the best candidate for very long term operation (10+ years).This is to monitor a solar field gateway. The Pi would ping the box and if fails post a message to a...
View ArticleBeta testing • Re: Updating to trixie
Thank you. Ah - this bit helps: dpkg: error processing archive /tmp/apt-dpkg-install-e1Zb5J/08-pi-greeter_0.27_arm64.deb (--unpack): trying to overwrite...
View ArticleGraphics, sound and multimedia • Re: Simple real time USB camera acquisition...
If we go the C/C++ route, just to acquire from a USB webcam is a lot of code just to acquire a 2 sec stream in this example.https://www.marcusfolkesson.se/blog/cap ... footnote-2What would be a...
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Device Tree • GPIO question
I made the follow DT fragment some time ago and can remember what some of it means Code: fragment@3 {target = <&gpio>;__overlay__ {wpc_racecam_pins: wpc_racecam_pins {brcm,pins = <12...
View ArticleGeneral discussion • Re: Smallest pi to run Linux ping & wget|curl...
Any Pi will run Linux.All Pis except Zero have an ethernet network interface.No Pi has a RTC except the Pi 5.I would suggest a PI Zero with external ethernet USB, an RTC like a DS3231 on the GPIO...
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Off topic discussion • Re: A bit of Raspberry with 144C/288T
I created new short "Jet sound in basement, 8-socket server starting " for those who do not:https://www.youtube.com/shorts/KBpVzTYbr-gI think those servers spin the fans at full when booting as a...
View ArticleDevice Tree • Re: GPIO question
what is the number after the GPIO pin in "switch-gpios = <&gpio 12 1>;" and "status-led-gpios = <&gpio 13 0>;"?the first number is a pin, pin12 and pin13 here, the 2nd number is...
View ArticleTroubleshooting • Re: Pi4 not booting with RP2040 board plugged in
Something else I forgot to add which is relevant.Previously I had tried using a totally different board with an RP2040. This was an accelerometer board (ADXL345) and had no additional power. Was a Pi...
View ArticlePython • Re: Using a 4-20 mA Transmitter with a Raspberry Pi
Unfortunately there is no schema for this transmitter board.- the only remark in the board description (perhaps you have a schema?) is that it works with 5V supply. Which is unfortunately not a match...
View ArticleCompute Module • Re: How do you build a CM4 flashing circuit on a custom board?
CM4 only has a single USB port. There is a multiplexer that selects either the µUSB-B or the hub with the USB-A. How come on the CM4 IO Board, there are 2 USB-A...
View ArticleAutomation, sensing and robotics • Please help me inspire the next generation...
My son is 6 years old in a couple of weeks and he’s shown a really interest in robotics and automation which I’m thrilled about.I have a budget of around £200 and I’d like to get him a robotics kit...
View ArticleTroubleshooting • Re: Password problems with the imager
No, the password is blurred anyway, but its longer than the one I've enteredAgain, for security reasons, there needn't be (and frequently isn't) any consistent correlation between the number of...
View ArticleAdvanced users • Re: Raspberry Pi OS Image Creation : Made Easy
Would be nice if we can add custom files to the image for example in the home directory of the created user. Image File Utilities provides this capability and more.Statistics: Posted by RonR — Fri Aug...
View ArticleAutomation, sensing and robotics • Re: Please help me inspire the next...
My son is 6 years old in a couple of weeks and he’s shown a really interest in robotics and automation which I’m thrilled about.I have a budget of around £200 and I’d like to get him a robotics kit...
View ArticleHATs and other add-ons • Plug & Go Camera & Display Setup
I'm looking for a compatible camera, display, and Raspberry Pi setup that lets me view live video with minimal or no programming—ideally plug-and-play. Can anyone recommend components that make this...
View ArticleAutomation, sensing and robotics • August lock bluetooth proxy?
My August lock WiFi gateway has died. Does anyone have any data on using my Pi Zero 2W as a gateway to Home Assistant? Supposedly you can cut the August cloud out of the equation, but it's unclear if...
View ArticleAutomation, sensing and robotics • Re: August lock bluetooth proxy?
Looks to me you may have more success if you post this in the HA community forum https://community.home-assistant.io/Statistics: Posted by DirkS — Fri Aug 29, 2025 6:13 pm
View ArticleGeneral discussion • are soldered RTC batteries in-use before purchase?
If one was to buy an RTC module with a soldered battery, such as this type; https://thepihut.com/products/mini-rtc- ... spberry-piis part of the ~4.5year battery life already used up before you...
View ArticlePython • Re: Problems with venv
Worked example. As previous example with different name for the venv holder, and showing change of Working Directory.Code: david@rp54bw64full0512:~/Support/capell $ python -m venv...
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