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by mahjongg
Wed Sep 18, 2019 12:24 pm
Forum: Beginners
Topic: Turning on raspberry pi wirelessly.
Replies: 8
Views: 164

Re: Turning on raspberry pi wirelessly.

I’ve not seen a device to do that. Some HATs have a timer wake up function but I’m sure it would not be hard to create a device using an ESP WiFi chip to do this. By the way - WOL is not supported This in a nice idea. The ESP requires external power though. I think the ports on the pi are still on ...
by mahjongg
Wed Sep 18, 2019 12:04 am
Forum: Nederlands
Topic: I want to buy a RhoCoCo or ZX81+34 PCB.
Replies: 13
Views: 1604

Re: I want to buy a RhoCoCo or ZX81+34 PCB.

Ik ben gestart aan ZX81+38, een nieuwe versie met enkel PTH onderdelen, en meer RETRO in wat het kan, en hoe het er uitziet, en veel eenvoudiger na te bouwen.
by mahjongg
Tue Sep 17, 2019 5:35 pm
Forum: Troubleshooting
Topic: Wlan0: Not associated
Replies: 1
Views: 41

Re: Wlan0: Not associated

Hi I have this problem on the pi4,but my WiFi is on the list click it comes up with the password click ok and still no WiFi still says wan0 not allocated any help please. No you have not! The thread I split this off from is about completely different hardware. Please start a new thread, and explain...
by mahjongg
Tue Sep 17, 2019 12:26 pm
Forum: Advanced users
Topic: Switch two kernel image in raspberry pi using UBoot
Replies: 11
Views: 228

Re: Switch two kernel image in raspberry pi using UBoot

Are you talking about a raspberry PI, or about a PC you want to run the PI desktop on? If the latter, then NOOBS doesn't run on PC's if the former, then I again have to move this thread to the correct place. please give us enough information, you are not making sense now! P.S. PI's at the moment don...
by mahjongg
Tue Sep 17, 2019 12:20 pm
Forum: Beginners
Topic: HDMI to VGA
Replies: 6
Views: 101

Re: HDMI to VGA

split off intertwined unrelated second question
by mahjongg
Mon Sep 16, 2019 4:50 pm
Forum: Beginners
Topic: Soldering
Replies: 22
Views: 464

Re: Soldering

I got the hang of soldering a single wire in the hole in the board. How do you then connect two or more wires that won’t all fit in a single hole in the board? If the copper of the multi-core wire is quite thin, you can twist the cores together, and try if they fit in the single hole, if it gets to...
by mahjongg
Mon Sep 16, 2019 4:16 pm
Forum: General discussion
Topic: Benchmarking a raspberrypi compared to my own PC [obsolete and locked]
Replies: 51
Views: 18135

Re: Benchmarking a raspberrypi compared to my own PC [obsolete and locked]

The information in this thread has long been obsolete, even though google can still find it, that doesn't mean its valid info. Therefore an explicit warning the info is old an obsolete is warranted, and locking the thread is too. A post that claimed the data was valid because it was "easy to find" w...
by mahjongg
Mon Sep 16, 2019 12:49 pm
Forum: Off topic discussion
Topic: My ZX81 clone ZX81+35 and a PSG sound expansion board for it (now released on GitHub)
Replies: 85
Views: 24178

Re: My ZX81 clone ZX81+35 and a PSG sound expansion board for it (now released on GitHub)

As SMT is for many people a bridge too far I am currently considering to design a minimalist, but fully compatible, ZX-81 clone using only currently available PTH components, so no special soldering techniques are needed. It probably won't fit on a 10 x 10 cm PCB, but as PCB's have sunk a lot in pri...
by mahjongg
Mon Sep 16, 2019 11:46 am
Forum: Beginners
Topic: Soldering
Replies: 22
Views: 464

Re: Soldering

The "bare wires" are not actually bare, they are covered with an insulated layer of lacquer (enameled wire). If you look at the windings of a transformer, these are normally also winded with lacquered copper wire. If you heat the end of such a wire enough the lacquer will burn off, making it a conve...
by mahjongg
Mon Sep 16, 2019 11:31 am
Forum: Troubleshooting
Topic: woeful throughput on pi as raspbian router
Replies: 23
Views: 523

Re: woeful throughput on pi as raspbian router

Please don't make personal attacks, keep it friendly, posts ignoring this will be deleted, and repeats will lead to a ban.
by mahjongg
Mon Sep 16, 2019 12:14 am
Forum: Deutsch
Topic: Raspberry Pi bootet nicht, nur rote LED leuchtet
Replies: 3
Views: 109

Re: Raspberry Pi bootet nicht, nur rote LED leuchtet

besser nicht, wen du versucht ein anderes exemplar einzukoten hattest du das risico das du die neuer polyfuse überheizt , und auch der "durchbrennt", besser du wartet nur 24 stunden.

auch zum beispiel Das RPI im kühlschrank legen Wirt nicht helfen.
by mahjongg
Sun Sep 15, 2019 3:45 pm
Forum: Deutsch
Topic: Raspberry Pi bootet nicht, nur rote LED leuchtet
Replies: 3
Views: 109

Re: Raspberry Pi bootet nicht, nur rote LED leuchtet

Sie können einen neuen PI kaufen, weil Sie es geschafft haben, ihn in die Luft zu jagen, zumindest sieht es so aus. Es besteht die Möglichkeit, dass Ihr PI von selbst wiederhergestellt werden kann. Dies liegt daran, dass Sie die Polyfuse durchgebrannt haben. In diesem Fall ist die PWR-LED jetzt ausg...
by mahjongg
Sun Sep 15, 2019 3:25 pm
Forum: General discussion
Topic: Raspberry Pi 4 - doubts
Replies: 3
Views: 463

Re: Raspberry Pi 4 - doubts

3.- All right, I was think that all GPIO are only for power output and not input, and could be have some protection. Thoughts like that can be easily be dismissed by having a quick look at the partial schematics of the RPI4, here: https://www.raspberrypi.org/documentation/hardware/raspberrypi/schem...
by mahjongg
Sat Sep 14, 2019 11:22 pm
Forum: Java
Topic: Serial Communication (Javafx + JSSC)
Replies: 2
Views: 8959

Re: Serial Communication (Javafx + JSSC)

deleted all replies, because they were all posted by spammers

if this continues, I will delete this thread!
by mahjongg
Fri Sep 13, 2019 10:09 pm
Forum: Beginners
Topic: SDHC? Or just SD?
Replies: 13
Views: 309

Re: SDHC? Or just SD?

thread split off from ancient (seven year old, must be a record!) obsolete thread, now locked. and yes, when we say SD-card we mean a micro-SD, regular size cards are almost no longer sold AFAIK, only micro-SD cards with an adapter. If you think you have a full size SD-card check if its not an adapt...
by mahjongg
Fri Sep 13, 2019 2:51 pm
Forum: Graphics, sound and multimedia
Topic: Bluetooth Headset not working on RPi4B
Replies: 6
Views: 244

Re: Bluetooth Headset not working on RPi4B

Deleted post in ARC, because duplicates are not allowed here, next time ask a moderator to move your post.
by mahjongg
Fri Sep 13, 2019 11:55 am
Forum: Troubleshooting
Topic: Pi 3B+ / Shorting 3.3V to GND
Replies: 3
Views: 80

Re: Pi 3B+ / Shorting 3.3V to GND

You cannot buy the PMIC chip, its an OEM device, a specially made version for the raspberry PI foundation only.
by mahjongg
Thu Sep 12, 2019 4:53 pm
Forum: Off topic discussion
Topic: How to Install Microsoft windows 10 operating systems ?
Replies: 26
Views: 913

Re: How to Install Microsoft windows 10 operating systems ?

Sigh, I should have locked this thread the moment it appeared, or at least directly after I posted my NO YOU CAN'T message.

10, 9, 8, 7, 6, 5, 4, 3, 2, 1 0 Locking.....
by mahjongg
Thu Sep 12, 2019 4:46 pm
Forum: Arch
Topic: Tutorial for updating R-Pi firmware in ARCH LINUX [obsolete]
Replies: 14
Views: 37876

Re: Tutorial for updating R-Pi firmware in ARCH LINUX [obsolete]

this thread is marked obsolete, locking.

start a new thread for currently valid information, don't use 5 years old info.
by mahjongg
Thu Sep 12, 2019 4:36 pm
Forum: Troubleshooting
Topic: Stack Trace When Starting Eclipse
Replies: 3
Views: 226

Re: Stack Trace When Starting Eclipse

google claims it does! https://www.digikey.com/en/maker/blogs/ ... spberry-pi

if it runs on older PI's, I see no reason why it cannot run on an RPI4.
by mahjongg
Thu Sep 12, 2019 11:36 am
Forum: Advanced users
Topic: Pi4 12V fan on 5V pins
Replies: 3
Views: 255

Re: Pi4 12V fan on 5V pins

Holes in the underside are not much use, as the PCB blocks airflow to the underside of the PCB. instead you should add holes in the lower part of the case, but above the PCB, so the air has an escape route, and it can actually flow over the heatsink, and carry hot air out of the enclosure, without t...
by mahjongg
Thu Sep 12, 2019 11:26 am
Forum: Off topic discussion
Topic: How to Install Microsoft windows 10 operating systems ?
Replies: 26
Views: 913

Re: How to Install Microsoft windows 10 operating systems ?

You can't! A raspberry PI doesn't use an intel/AMD (x86) processor, so you can't really install any real Windows Desktop OS on it, except when you emulate an x86 CPU with the PI's ARM CPU, but that would be extremely slow when you try, booting would take 15 minutes for example. Microsoft has release...
by mahjongg
Thu Sep 12, 2019 9:31 am
Forum: Off topic discussion
Topic: My own 8-bit RETRO Homecomputer: RhoCoCo
Replies: 147
Views: 45480

Re: My own 8-bit RETRO Homecomputer: RhoCoCo

Awesome project ! Do you have a github repository for those wanting to reproduce, participate and improve your RhoCoCo design ? (Kicad schematics, PCB layout, Propeller firmware ...). I have recently implemented a few retro computer designs as a learning base of digital electronics : a Propeller ga...
by mahjongg
Thu Sep 12, 2019 9:20 am
Forum: Off topic discussion
Topic: My ZX81 clone ZX81+35 and a PSG sound expansion board for it (now released on GitHub)
Replies: 85
Views: 24178

Re: My ZX81 clone ZX81+35 and a PSG sound expansion board for it (now released on GitHub)

And the PCB itself (preview courtesy of Eurocircuits PCB manufacturing) , the (mirrored) solderside.
Image
by mahjongg
Wed Sep 11, 2019 11:30 am
Forum: Other
Topic: [Kali] cant SSH into via usb cable
Replies: 11
Views: 307

Re: RPi0w cant SSH into via usb cable

moved to other OS, and marked [Kali].

There you can find this similar thread https://www.raspberrypi.org/forums/view ... 6&t=250887 which suggests Kali doesn't support SSH.

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