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by mahjongg
Sun Jul 12, 2020 7:25 pm
Forum: Python
Topic: Monitoring GPIO Ports
Replies: 3
Views: 130

Re: Monitoring GPIO Ports

moderator added code tags to first post
by mahjongg
Sat Jul 11, 2020 4:24 pm
Forum: Troubleshooting
Topic: Raspberry Pi OS Keyboard Not Working, can't SSH in.
Replies: 2
Views: 58

Re: Raspberry Pi OS Keyboard Not Working, can't SSH in.

Split off from hijacked post, why so many people add to old long ports? Do't they see how anti-social that is? Or are they scared to start their own thread?
by mahjongg
Sat Jul 11, 2020 12:13 pm
Forum: Beginners
Topic: LED help
Replies: 17
Views: 400

Re: LED help

IMHO only white LEDs and blue LED's have a forward voltage nearing 3 Volt. White LED's are typically blue leds too, but they have a phosphor dot in the light that converts part of the blue light to other colours, so that together with blue they form light that humans see as white, but that is not th...
by mahjongg
Fri Jul 10, 2020 8:11 pm
Forum: General discussion
Topic: Raspi+Ovpn as private DNS server
Replies: 7
Views: 269

Re: Raspi+Ovpn as private DNS server

Original poster post edited and added hidden spamlinks, so first post was removed. and poster banned
by mahjongg
Fri Jul 10, 2020 7:58 pm
Forum: General programming discussion
Topic: Correctly configuring clocks for PWM or GPIO [obsolete]
Replies: 12
Views: 7175

Re: Correctly configuring clocks for PWM or GPIO

Indeed now locking useless thread, seven years ago the (unspecified) hardware was probably different on register levels. Using old outdated hardware info only wastes peoples time, google should not point people to here, (or to other obsolte info) but to newer info, so locking, and marking obsolete ....
by mahjongg
Fri Jul 10, 2020 6:00 pm
Forum: Troubleshooting
Topic: My 4B got submerged in fresh water for about five minutes while powered on - won't boot
Replies: 2
Views: 159

Re: My 4B got submerged in fresh water for about five minutes while powered on - won't boot

Dipping a PI in "fresh" (meaning I presume not distilled) water is disastrous, as the water is conductive, and will cause numerous shorts, while the PI is powered on. The chances that this will cause permanent damage to the PI are great. What to do: First remove power as quick as possible! second re...
by mahjongg
Wed Jul 08, 2020 7:18 pm
Forum: Beginners
Topic: LED help
Replies: 17
Views: 400

Re: LED help

A clear (RED) LED, commonly will use something like 10mA, (which a single GPIO can provide, maximum is ca 15mA) and has a forward voltage typically of 2.0Volt, so about 1.3V will fall over the resistor. Ohms law = R=U/I = 1.3V / 0.01A (10mA) so R = 130Ohm So try a 150 Ohm resistor. wattage lost in t...
by mahjongg
Wed Jul 08, 2020 4:44 pm
Forum: Off topic discussion
Topic: How many pi's do YOU own?
Replies: 33
Views: 964

Re: How many pi's do YOU own?

No, I could imagine a poll that would not be only used as a "toy", and have in the past allowed polls that had some merit. Also, I only remove polls when I get a complaint (most often from the same person, you know who you are.. "D". :P ). Actually I really do consider the merit of a poll, before I ...
by mahjongg
Wed Jul 08, 2020 4:35 pm
Forum: General discussion
Topic: Updated raspi-config - Boot Eeprom options
Replies: 18
Views: 901

Re: Updated raspi-config - Boot Eeprom options

USB booting is not yet officially released, so this is all unwarranted speculation, and probably 100% false!

Locking!! and will be deleted soon.
by mahjongg
Wed Jul 08, 2020 4:32 pm
Forum: Off topic discussion
Topic: How many pi's do YOU own?
Replies: 33
Views: 964

Re: How many pi's do YOU own?

Please don't create spurious polls, some readers really hate them, and demand their removal ASAP. :mrgreen:
by mahjongg
Wed Jul 08, 2020 4:25 pm
Forum: General discussion
Topic: Videos show as green and pixelated in Chromium using Raspberry Pi 4 8GB
Replies: 10
Views: 282

split off unrelated section of USB-MSD booting on RPI4

As the posts by mob-i-l have nothing to do with USB-MSD booting, and were polluting the thread, I have split them off from the main USB-Boot section, together with all relevant replies.

those who do not want to learn and listen should suffer the consequences.. :evil: :twisted:
by mahjongg
Tue Jul 07, 2020 12:08 pm
Forum: General discussion
Topic: Raspberry Pi and 3G
Replies: 11
Views: 2519

Re: Raspberry Pi and 3G

This is a duplicate, but both posts are too long to delete one of them, so I give up on "no dual posting allowed... :x :x
by mahjongg
Tue Jul 07, 2020 11:58 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 Green light no boot
Replies: 8
Views: 172

Re: Raspberry Pi 4 Green light no boot

Please read the boot problem sticky in beginners, and learn how to correctly interpret the LED's.

P.S. A RPI is NOT an X-box, thank you... :twisted:
by mahjongg
Tue Jul 07, 2020 11:37 am
Forum: Other projects
Topic: Hardware accelerated WebView for Raspberry Pi2/3 [from 2016 so obsolete now!]
Replies: 5
Views: 3331

Re: Hardware accelerated WebView for Raspberry Pi2/3

`I don't find it surprising that when following a long outdated script, and use it on a completely different system, years later that it won't work. Why don't you people look at the posting data, and realise that it was posted for a now obsolete version of raspbian. locking this thread, and declarin...
by mahjongg
Tue Jul 07, 2020 12:01 am
Forum: General programming discussion
Topic: Correctly configuring clocks for PWM or GPIO
Replies: 3
Views: 102

Re: Correctly configuring clocks for PWM or GPIO

rlatinov wrote:
Mon Jul 06, 2020 6:22 pm
Posting on an old thread.. my bad.
Just saying :"my bad" doesn't excuse hijacking and a Necro. 7+ years later presumably there are significant hardware details in an RPi3 that were not known to the original author... ?

the old thread is totally off topic now!
by mahjongg
Mon Jul 06, 2020 11:58 pm
Forum: General discussion
Topic: TP link TL-WN725N
Replies: 2
Views: 101

Re: TP link TL-WN725N

split off because of hijacking an unrelated topic (and a very old one, so also "necroing").
by mahjongg
Mon Jul 06, 2020 12:23 pm
Forum: General discussion
Topic: Flight sim? [obsolete thread]
Replies: 30
Views: 20157

Re: Flight sim?

The 8GB RPI4 came out about a month ago on may 28, 2020. :mrgreen: :mrgreen: https://www.raspberrypi.org/blog/8gb-raspberry-pi-4-on-sale-now-at-75/ With that this discussion has come to an end. please start a new thread if you want to discuss flight sims. Perhaps when 3D render code base Vulcan is r...
by mahjongg
Sun Jul 05, 2020 1:48 pm
Forum: General discussion
Topic: I think i just destroyed my first raspberry pi.
Replies: 7
Views: 460

Re: I think i just destroyed my first raspberry pi.

I'm guessing something like this: https://www.amazon.ca/Plugable-Ethernet-Compatible-Raspberry-AX88772A/dp/B00RM3KXAU (Micro-B OTG Ethernet adapter) Maybe plugged into a PoE port, could cause very bad things to happen? Only if it were a very cheap non-conforming adaptor with no magnetic isolation b...
by mahjongg
Sat Jul 04, 2020 10:59 pm
Forum: Italiano
Topic: Windows 10 iot
Replies: 4
Views: 188

Re: Windows 10 iot

Microsoft non ha mai aggiornato WIN 10 IOT, quindi NON è disponibile per un RPI4, basta usare il sistema operativo Raspberry PI.
by mahjongg
Sat Jul 04, 2020 10:41 pm
Forum: Raspberry Pi OS
Topic: Ripping out SystemD
Replies: 8
Views: 997

Re: Ripping out SystemD

SystemD is not just an init system, that's the problem. It's a serious, serious issue. Raspbian is essentially broken if systemd is included and I need to find an alternative. What are my options? You re-opened a long outdated thread, so I'm locking it. You are tilting at windmills, let it go. Just...
by mahjongg
Sat Jul 04, 2020 10:34 pm
Forum: General discussion
Topic: Motor not moving
Replies: 1
Views: 84

Re: Motor not moving

added code tags, but it seems you have uploaded text which has no indentations. Try to power the motor directly, probably the 5V from the RPI doesn't supply enough power. If you have a problem, always try to split the problem into simpler parts. For example only add software to the problem *after* y...
by mahjongg
Sat Jul 04, 2020 10:01 pm
Forum: General discussion
Topic: I think i just destroyed my first raspberry pi.
Replies: 7
Views: 460

Re: I think i just destroyed my first raspberry pi.

What is the "RJ45 adapter" you where talking about, do you have a picture? how was it connected to the PI?
by mahjongg
Sat Jul 04, 2020 11:57 am
Forum: Wanted
Topic: Microwave chipset sensor for x band
Replies: 2
Views: 152

Re: Microwave chipset sensor for x band

also could be illegal.

If you have proof it isn't, please send a moderator attention report (flag icon), and maybe I will re-open this thread.
also I don't see anything that makes this on-topic.
by mahjongg
Fri Jul 03, 2020 8:00 pm
Forum: Python
Topic: Pi4 display an image on TV based on input
Replies: 5
Views: 233

Re: Pi4 display an image on TV based on input

post moved to python
by mahjongg
Fri Jul 03, 2020 7:58 pm
Forum: Beginners
Topic: Absolute Raspberry Pi Beginner... What next?
Replies: 5
Views: 311

Re: Absolute Raspberry Pi Beginner... What next?

OP was a spammer, who poste edited his post and put in various hidden spam links for google bots.

spamlinks were removed and spammer banned

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