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by alphanumeric
Mon Mar 30, 2020 3:29 pm
Forum: General discussion
Topic: how to disable everything on boot in Raspberry pi 4
Replies: 5
Views: 126

Re: how to disable everything on boot in Raspberry pi 4

To disable rainbow splash screen

Add
disable_splash=1
to /boot/config.txt

What else do you want to disable?
by alphanumeric
Sat Mar 28, 2020 7:09 pm
Forum: Beginners
Topic: Cooling fan
Replies: 15
Views: 420

Re: Cooling fan

I use a Pimoroni Fan Shim on my 4B. It runs at around 35c under moderate use. I can hear the fan running but its not loud enough to annoy me. YMMV depending on what fan you use. My 4B would slowly creep up to 80c with a browser window open to one of my camera feeds. That was the earlier firmware tho...
by alphanumeric
Sat Mar 28, 2020 6:46 pm
Forum: General discussion
Topic: Raspberry Pi Zero - Version 2?
Replies: 70
Views: 3758

Re: Raspberry Pi Zero - Version 2?

I really like the A form factor. One full sized HDMI, one full sized USB, and hat sized. And a DSI port that the Zero doesn't have. And normal sized CSI port, no special cable needed. Don't get me wrong. I also like the Zero, I have more of those than any other Pi model.
by alphanumeric
Wed Mar 25, 2020 7:36 pm
Forum: Beginners
Topic: Enable pin on Pi Zero?
Replies: 2
Views: 75

Re: Enable pin on Pi Zero?

You can start it up with a GPIO Pin, by default grounding GPIO 3 will boot it up if it has a power supply plugged in. You can also shut down with a GPIO pin by adding a dtoverlay, dtoverlay=gpio-shutdown will do a proper shutdown if GPIO 3 is grounded. You'd have to have a look see here for other op...
by alphanumeric
Tue Mar 24, 2020 8:05 pm
Forum: General discussion
Topic: Raspberry Pi3 A+ with only 250mb of ram
Replies: 13
Views: 497

Re: Raspberry Pi3 A+ with only 250mb of ram

Assuming you meant those I posted: that's somewhat odd, esp. as my website is (also) hosted by Mythic Beasts (albeit probably on a different server) ... Trev. Yes, your links sorry for not quoting you. Working now though? Always worked for me, but I'm in the UK. Worked for @Technocolour (post above...
by alphanumeric
Tue Mar 24, 2020 6:28 pm
Forum: Advanced users
Topic: Turn RPi Camera module into USB webcam for use in Windows
Replies: 13
Views: 330

Re: Turn RPi Camera module into USB webcam for use in Windows

I figured I better mention that before you went to far. And as mentioned it looks like the 3B won't do gadget mode. You'll have to use the 4B. Keep an eye out for undervolt warnings.
by alphanumeric
Tue Mar 24, 2020 6:03 pm
Forum: Advanced users
Topic: Turn RPi Camera module into USB webcam for use in Windows
Replies: 13
Views: 330

Re: Turn RPi Camera module into USB webcam for use in Windows

Just be aware that the CSI slot on a Pi Zero is smaller than the standard camera slot. You need a special cable to hook up the official camera to a Zero. I have a couple here that I think came with the Official Zero Case. They came as extras with something I bought Zero related.
by alphanumeric
Tue Mar 24, 2020 5:55 pm
Forum: General discussion
Topic: Raspberry Pi3 A+ with only 250mb of ram
Replies: 13
Views: 497

Re: Raspberry Pi3 A+ with only 250mb of ram

Pictures and info here, https://www.raspberrypi.org/products/ The above links didn't work for me? Assuming you meant those I posted: that's somewhat odd, esp. as my website is (also) hosted by Mythic Beasts (albeit probably on a different server) ... Trev. Yes, your links sorry for not quoting you....
by alphanumeric
Tue Mar 24, 2020 10:57 am
Forum: General discussion
Topic: Raspberry Pi3 A+ with only 250mb of ram
Replies: 13
Views: 497

Re: Raspberry Pi3 A+ with only 250mb of ram

Pictures and info here, https://www.raspberrypi.org/products/
The above links didn't work for me?
by alphanumeric
Mon Mar 23, 2020 7:45 pm
Forum: Advanced users
Topic: Turn RPi Camera module into USB webcam for use in Windows
Replies: 13
Views: 330

Re: Turn RPi Camera module into USB webcam for use in Windows

Fair point, doesn't hurt to know what your options are though. Somebody else reading this thread may want to try it, you never know.
by alphanumeric
Mon Mar 23, 2020 7:34 pm
Forum: Advanced users
Topic: Turn RPi Camera module into USB webcam for use in Windows
Replies: 13
Views: 330

Re: Turn RPi Camera module into USB webcam for use in Windows

A Zero or Zero W will also work in Gadget mode.
by alphanumeric
Mon Mar 23, 2020 11:48 am
Forum: Advanced users
Topic: Turn RPi Camera module into USB webcam for use in Windows
Replies: 13
Views: 330

Re: Turn RPi Camera module into USB webcam for use in Windows

There is software out there that will let you stream from a Raspberry Pi / camera to the internet. I haven't done it myself but if you do a forum search you should be able to find some threads on it. I didn't want to go that route, I wanted my feeds over my LAN and went with Motion Eye OS. I can vie...
by alphanumeric
Mon Mar 23, 2020 11:12 am
Forum: General discussion
Topic: 5V and 3V3 buses do not go down after sudo poweroff
Replies: 7
Views: 267

Re: 5V and 3V3 buses do not go down after sudo poweroff

There are devices out there like the Pimoroni On Off shim that will remove power to the Pi, and turn it back on again with a button press. My above post was intended to say it could be done with extra hardware, and if you use the gpio-poweroff dtoverlay you won't corrupt your card. I could have said...
by alphanumeric
Sun Mar 22, 2020 10:33 pm
Forum: General discussion
Topic: 5V and 3V3 buses do not go down after sudo poweroff
Replies: 7
Views: 267

Re: 5V and 3V3 buses do not go down after sudo poweroff

use a GPIO controlled relay to switch power on/off to RPi after poweroff, the GPIO will turn off the relay.... turning off power to the whole RPi board. I don't think that will work because the gpio goes down before the pi has finished shutting down. So you would need a delay between the gpio going...
by alphanumeric
Fri Mar 20, 2020 7:18 pm
Forum: HATs and other add-ons
Topic: Input Hat with well protected inputs
Replies: 1
Views: 98

Re: Input Hat with well protected inputs

Have a look see at this. https://shop.pimoroni.com/products/automation-hat Features 3 x 24V @ 2A relays (NC and NO terminals) 3 x 12-bit ADC @ 0-24V (±2% accuracy) 3 x 24V tolerant buffered inputs 3 x 24V tolerant sinking outputs 15 x channel indicator LEDs 1 x 12-bit ADC @ 0-3.3V 3.5mm screw termin...
by alphanumeric
Fri Mar 20, 2020 10:28 am
Forum: General discussion
Topic: Raspberry PI4 architecture OS
Replies: 6
Views: 356

Re: Raspberry PI4 architecture OS

1: Yes
2: Sort of, Pi4 64-bit Raspbian kernel for testing - Focus on Pi4
https://www.raspberrypi.org/forums/vie ... &t=250730
by alphanumeric
Thu Mar 19, 2020 7:51 pm
Forum: Beginners
Topic: Boot from microsd on laptop
Replies: 7
Views: 234

Re: Boot from microsd on laptop

The first question is, can said laptop even boot from the SD Card slot? I ask because mine cannot boot from its card reader writer SD card slot. There is no BIOS option to do this, period. If yours is also like this it makes no difference what is on the card, its not accessible on boot up.
by alphanumeric
Thu Mar 19, 2020 7:46 pm
Forum: General discussion
Topic: How to detect 12V with GPIO?
Replies: 7
Views: 211

Re: How to detect 12V with GPIO?

There is this
https://shop.pimoroni.com/products/automation-phat
or this
https://shop.pimoroni.com/products/automation-hat
It should prevent accidentally damaging your Pi. Anything above 3.3V into a GPIO pin will damage it. This is a ready made solution.
by alphanumeric
Thu Mar 19, 2020 11:52 am
Forum: General discussion
Topic: Wake up light clock, radio, weather info - coding/services, how would you?
Replies: 1
Views: 109

Re: Wake up light clock, radio, weather info - coding/services, how would you?

I have a couple of what I call Weather clocks. They started out as a Pi A+ (not a 3A+) Sense Hat and DS3231 RTC. Everything is displayed on the Sense Hat's LED matrix in a repeating scrolling message. It shows Day, Date, Time, temperature, humidity, barometric pressure and UV index. The color of the...
by alphanumeric
Thu Mar 19, 2020 11:27 am
Forum: Troubleshooting
Topic: Error updating the OS
Replies: 8
Views: 215

Re: Error updating the OS

Try sudo apt update and sudo apt upgrade instead of apt-get and see what happens.
by alphanumeric
Thu Mar 19, 2020 11:10 am
Forum: Camera board
Topic: How to connect Picam2 to a Raspberry Pi Model A 3+
Replies: 4
Views: 194

Re: How to connect Picam2 to a Raspberry Pi Model A 3+

The way I do it is blue side facing the locking bar side. No having to look at the inside of the connector. They can be a bit of a pain hooking up, but on the plus side nothing bad happens if you get one or more ends reversed. It just doesn't work. Be careful with those locking bars. Go easy on them...
by alphanumeric
Thu Mar 19, 2020 10:44 am
Forum: Off topic discussion
Topic: Pi4A or "Pi3A++"
Replies: 21
Views: 1358

Re: Pi4A or "Pi3A++"

The original A+ got a memory upgrade from 256 to 512. I have one of each here, and if I remeber correctly, its not easy sorting out which one is which. Not by just physically examining them. I have four 3A+'s here, I'd happily swap one or two for a 4A or a another 3A+ with more RAM. I have no intere...
by alphanumeric
Wed Mar 18, 2020 12:43 pm
Forum: General discussion
Topic: Managing a Monitor TV between a Pi and Xbox
Replies: 10
Views: 612

Re: Managing a Monitor TV between a Pi and Xbox

On my XBOX One I can feed my cable boxes HDMI into my XBOX. And watch my Cable TV via the XBOX without switching cables. It passes the HDMI through to my TV. The XBOX has to be on for this to work, and some setup is required. I can't see any reason why you couldn't feed the Pi's HDMI out into the X...
by alphanumeric
Tue Mar 17, 2020 9:17 am
Forum: General discussion
Topic: Managing a Monitor TV between a Pi and Xbox
Replies: 10
Views: 612

Re: Managing a Monitor TV between a Pi and Xbox

On my XBOX One I can feed my cable boxes HDMI into my XBOX. And watch my Cable TV via the XBOX without switching cables. It passes the HDMI through to my TV. The XBOX has to be on for this to work, and some setup is required. I can't see any reason why you couldn't feed the Pi's HDMI out into the XB...
by alphanumeric
Mon Mar 16, 2020 2:19 pm
Forum: Off topic discussion
Topic: gpio direct hdmi
Replies: 4
Views: 612

Re: gpio direct hdmi

You can plug a display into the GPIO and with a little work get it to work. They don't use HDMI though.
https://www.adafruit.com/?q=PiTFT

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