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by M_P
Wed Nov 17, 2021 12:42 am
Forum: General discussion
Topic: Second opinion on this circuit please
Replies: 29
Views: 721

Re: Second opinion on this circuit please

ame wrote:
Tue Nov 16, 2021 11:54 pm
Incredible amount of reading comprehension fail in this thread. And plenty of suggestions from people who have never actually built anything.
Can you be a little more specific? It'd be nice to know if someone's suggestion is going to end up with their house burning down. :(
by M_P
Sun Nov 14, 2021 11:36 pm
Forum: Beginners
Topic: Raspberry Pi to detect the Atlas EZO-pH Circuit - beginner questions
Replies: 3
Views: 136

Re: Raspberry Pi to detect the Atlas EZO-pH Circuit - beginner questions

I took a quick look at the pages you linked to. I don't think there's much engineering or design to do if you're using the carrier board with USB. If you connected the pH circuit directly to the Pi, you would need four connections to the GPIO pins on your Pi: ground, +V, data, and clock. UART would ...
by M_P
Sun Nov 14, 2021 11:03 pm
Forum: General discussion
Topic: Input for error 12 V into pin
Replies: 5
Views: 239

Re: Input for error 12 V into pin

Hi, I am new to this forum and I don't know if this request is in the correct form. I accidentally plugged the 12 volt positive pole of my power supply onto a pin raspberry. the power supply gnd was connected with the raspberry gnd Now the raspberry not start and not switch on the green led is it r...
by M_P
Sun Nov 14, 2021 11:01 pm
Forum: General discussion
Topic: The Raspberry Pi Zero 2 W Thread
Replies: 378
Views: 18947

Re: The Raspberry Pi Zero 2 W Thread

Does anyone have raspbery lite running on the Pi zero 2w. Mine goes through the boot process but rather than showing a login prompt is has a blank screen. I've had it running on two of them, used both Buster and Bullseye. Now just one (had to scrounge the SD card out of the other for another projec...
by M_P
Sat Nov 13, 2021 6:58 am
Forum: Beginners
Topic: Revolutions per second and height of freely rotating shaft
Replies: 8
Views: 244

Re: Revolutions per second and height of freely rotating shaft

There are some reasonably priced sensors out there that can measure barometric pressure precisely enough to measure height changes of several centimeters and will happily talk to an RP2040 or Pi SBC, although I can't say how well they'd hold up to impact or if putting them in a spinning tube would a...
by M_P
Fri Nov 12, 2021 4:33 pm
Forum: General discussion
Topic: Tips on programming a new OS for my RPi?
Replies: 16
Views: 691

Re: Tips on programming a new OS for my RPi?

Perhaps a Raspberry Pi Pico microcontroller running microPython or CircuitPython would be an easier target for implementation? Yes, I think a Pico is what's called for here. Python, close to bare-metal, and should do everything the OP is looking for. And they have a surprising amount of oomph and I...
by M_P
Tue Nov 09, 2021 6:14 pm
Forum: Troubleshooting
Topic: A serious request for audio support on RPi [SOLVED]
Replies: 15
Views: 732

Re: A serious request for audio support on RPi

I'm not sure why you're not getting any sound out the headphone jack - lots of folks have been using a Pi board for SDR or internet radio or media players and have been using the headphone jack. You mentioned an Alexa/Jarvis-esque assistant - I've used espeak on several projects with the audio jack ...
by M_P
Tue Nov 09, 2021 5:32 am
Forum: General discussion
Topic: TVHeadend gone missing
Replies: 10
Views: 501

Re: TVHeadend gone missing

trejan wrote:
Tue Nov 09, 2021 2:07 am
tvheadend isn't part of the upstream Debian repos for Buster and Bullseye. Somebody at RPT built a snapshot back in 2019 and added it to the RPi OS Buster repo. It isn't present in the Bullseye repo.
Ah! Looks like I have some downloading to do! :D
by M_P
Tue Nov 09, 2021 1:26 am
Forum: General discussion
Topic: TVHeadend gone missing
Replies: 10
Views: 501

Re: TVHeadend gone missing

That's odd, I can see it when I do an apt search tvheadend on my pi here. Maybe your apt update had some problems but they were covered up by the install. Could try

Code: Select all

sudo apt update
again and then an

Code: Select all

apt search tvheadend
to see what happens.
by M_P
Mon Nov 08, 2021 9:24 pm
Forum: General discussion
Topic: The Raspberry Pi Zero 2 W Thread
Replies: 378
Views: 18947

Re: The Raspberry Pi Zero 2 W Thread

bomblord wrote:
Mon Nov 08, 2021 8:56 pm
On an unrelated note does anyone know of an HDMI dongle that fits the flirc case normally?
If you're not too concerned about looks or durability, the "make-a-cable" HDMI parts from Adafruit have long connectors that aren't embedded in a plastic shell.
by M_P
Mon Nov 08, 2021 9:21 pm
Forum: General discussion
Topic: USB Speed and load on RPI4 w/ External HD's
Replies: 3
Views: 153

Re: USB Speed and load on RPI4 w/ External HD's

I've been using a Pi 4 (2GB) as a 2-disk (mirrored) NAS with USB drives for over a year now and with large files I can write at 80-95MB/s and read at 85-105MB/s over a wired network connection. Tons of small files are slow, though. A few thoughts: - Before starting a copy, start an extra terminal wi...
by M_P
Mon Nov 08, 2021 2:46 am
Forum: General discussion
Topic: Disable USB 3.0 on Pi 4
Replies: 6
Views: 497

Re: Disable USB 3.0 on Pi 4

thagrol wrote:
Mon Nov 08, 2021 12:16 am
AIUI, it's not the USB 3 controller that's the problem but the frequencies USB over the USB 3 cable.
Really? Wow, that's a new one on me. Very interesting, thanks!
by M_P
Mon Nov 08, 2021 2:45 am
Forum: General discussion
Topic: The Raspberry Pi Zero 2 W Thread
Replies: 378
Views: 18947

Re: The Raspberry Pi Zero 2 W Thread

From what he's said, he appears to be pretty certain it's not power. In his shoes, I'd check with a DMM, though, to make sure the Pi is seeing sufficient voltage (granted, that won't pick up transient drops, but it's a good first check). Yep, couldn't hurt. I'd be interested in what a scope shows d...
by M_P
Sun Nov 07, 2021 10:58 pm
Forum: General discussion
Topic: Can Zero (2) W be powered from desktop PC usb port
Replies: 11
Views: 559

Re: Can Zero (2) W be powered from desktop PC usb port

I've also had no problems powering a Zero 2 W from my laptop USB port. I haven't had anything aside from a USB keyboard dongle connected to it, either.

If you're not running it too hard or have much connected to it over USB or GPIO I think you'll be fine.
by M_P
Sun Nov 07, 2021 9:08 pm
Forum: General discussion
Topic: The Raspberry Pi Zero 2 W Thread
Replies: 378
Views: 18947

Re: The Raspberry Pi Zero 2 W Thread

People without issues don't post as much as those that do. Its those with the issues that helps shake out the issues on a products launch. So having people report 'its all good for me' doesn't really help the emergence of a possible issue - of which I would hope the RPi foundation would want to hea...
by M_P
Sun Nov 07, 2021 8:27 pm
Forum: General discussion
Topic: The Raspberry Pi Zero 2 W Thread
Replies: 378
Views: 18947

Re: The Raspberry Pi Zero 2 W Thread

Which was my suspicion, however the original request of highlighting some of the gotchas's/updating the guide that doesn't include RPi-Zero2 still stands as something that needs to be done... You keep saying this, but why should there be anything different for the Pi Zero 2? The instructions for _e...
by M_P
Sun Nov 07, 2021 8:53 am
Forum: General discussion
Topic: New P0 2 W
Replies: 14
Views: 630

Re: New P0 2 W

Your experience with the Pi Zero 2 W is different than mine - mine was behaving almost exactly the same on the 2.4GHz band as far as range and speed as my original Pi Zeros were. As far as I know, there isn't any firewall built in like that, and if there were, I'd expect you wouldn't be able to log ...
by M_P
Sat Nov 06, 2021 11:45 pm
Forum: General discussion
Topic: The Raspberry Pi Zero 2 W Thread
Replies: 378
Views: 18947

Re: ill continue to investigate on Monday.

Would it be possible to get an 'official' post on how to get the Zero2 working with Raspbian? The current advice is buried away in threads and comments all over the place, not ideal for most users. I set both of mine up with Lite doing nothing different than usual and have had no problems with inst...
by M_P
Sat Nov 06, 2021 6:33 am
Forum: General discussion
Topic: I'm very disappointed with the foundation's choice of supply chain
Replies: 13
Views: 832

Re: I'm very disappointed with the foundation's choice of supply chain

I also haven't experienced what the OP is seeing. The prices for boards and kits on sites that aren't official resellers *cough*Amazon*cough* are ridiculous compared to the official resellers here in Canada. That being said, some of the bundle kits sold by the official resellers are a little expensi...
by M_P
Sat Nov 06, 2021 4:50 am
Forum: General discussion
Topic: Suggest: additional power supply options
Replies: 12
Views: 601

Re: Suggest: additional power supply options

I don't know if this addresses the problem well, but the best solution I've found is to have a 12V or 19V or 24V supply (whatever you need to run the rest of your project), and hang some capacitors and a 5V regulator off it to power the Pi with. That way you only need to worry about supplying one ki...
by M_P
Sat Nov 06, 2021 3:39 am
Forum: General discussion
Topic: The Raspberry Pi Zero 2 W Thread
Replies: 378
Views: 18947

Re: The Raspberry Pi Zero 2 W Thread

Got two today and fired them up with RPi OS Lite (2021-05-07) on a 32GB ADATA card. No problems I'm doing some multiprocessing stuff with Pygame on a Pi 4 thought I'd see how it ran on a Zero 2W. Frankly, I'm tickled. With no overclocking it runs at about 30FPS, compared to around 65 on the Pi 4. Th...
by M_P
Sun Oct 31, 2021 11:33 pm
Forum: General discussion
Topic: The Raspberry Pi Zero 2 W Thread
Replies: 378
Views: 18947

Re: The Raspberry Pi Zero 2 W Thread

I'm very excited about this board. Could only order one but it's on the way. Can't wait to get my hands on it and see what I can do with it!
by M_P
Mon Oct 18, 2021 8:19 pm
Forum: General discussion
Topic: Do we love the 40-pin header? Is there something more desireable?
Replies: 33
Views: 1462

Re: Do we love the 40-pin header? Is there something more desireable?

I'm here a little late to the party, but I can't think of any other connector than the current header that would be easier for almost everyone out there to use. I think the 40-pin 2.54mm pitch header is just dandy. I have a couple of other boards that use the smaller pitch headers and they are a pai...
by M_P
Fri Oct 01, 2021 1:05 am
Forum: Troubleshooting
Topic: Raspberry Pi 3 B+ can't boot the os
Replies: 6
Views: 368

Re: Raspberry Pi 3 B+ can't boot the os

I suggest trying to use the Raspberry Pi Imager, you can find it at the top of this page:
https://www.raspberrypi.org/software/

Not sure if it will fix your problem, but at least then you're starting from a known good point.
by M_P
Tue Sep 28, 2021 7:28 am
Forum: General discussion
Topic: pcmanfm spewing gigabytes of errors to run.log
Replies: 29
Views: 1608

Re: pcmanfm spewing gigabytes of errors to run.log

That's a cop out. They promote their own distro which unnecessarily uses pcmanfm, which many other distros don't use. They made a choice to promote particular (defective) software, therefore they're responsible for doing some testing and bug-fixing. If they had left the distro entirely to some othe...

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