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by rpdom
Sat Dec 15, 2018 6:44 am
Forum: Camera board
Topic: Rasppberry Pi v2 Camera Module
Replies: 4
Views: 146

Re: Rasppberry Pi v2 Camera Module

I don't know how, but you should move this thread to camera forum for being noticed by people with kmowledge/interest with cameras: https://www.raspberrypi.org/forums/viewforum.php?f=43 Report the post to the moderators and ask for it to be moved. They will be happy to do it for you. I've reported ...
by rpdom
Tue Dec 11, 2018 3:31 pm
Forum: Graphics, sound and multimedia
Topic: pi 3 b+ composite to scart, working untill booted completely
Replies: 2
Views: 58

Re: pi 3 b+ composite to scart, working untill booted completely

Have you set the composite output type to PAL? The default is NTSC which may work on some screens and not on others.
by rpdom
Tue Dec 11, 2018 4:46 am
Forum: Off topic discussion
Topic: Why Avoid BASIC on RPi?
Replies: 699
Views: 16164

Re: Why Avoid BASIC on RPi?

So I would bet that you really had fun with the Archimedes when you got it? Oh yes. I went to the launch party in London, met some fun people and tried a few things out. Also visited Acorn in Cambridge to trial some software. I finally bought myself an A310, which got upgraded from Arthur to RISC O...
by rpdom
Tue Dec 11, 2018 4:18 am
Forum: Off topic discussion
Topic: Why Avoid BASIC on RPi?
Replies: 699
Views: 16164

Re: Why Avoid BASIC on RPi?

I am guessing then that you used an ARMv1 board on a beeb? Switching on one of my Beebs and seeing "Acorn Computer 4096K" was a hell of a kick at the time :-) I bet, wow. I bet that seemed lightning fast back then too? It did. It also made duplicating floppy disks with a single drive a lot easier. ...
by rpdom
Mon Dec 10, 2018 10:24 pm
Forum: Off topic discussion
Topic: Why Avoid BASIC on RPi?
Replies: 699
Views: 16164

Re: Why Avoid BASIC on RPi?

DavidS wrote:
Mon Dec 10, 2018 10:11 pm
I am guessing then that you used an ARMv1 board on a beeb?
Switching on one of my Beebs and seeing "Acorn Computer 4096K" was a hell of a kick at the time :-)
by rpdom
Mon Dec 10, 2018 10:19 pm
Forum: Troubleshooting
Topic: GPIO troubles
Replies: 4
Views: 109

Re: GPIO troubles

Sd card is removed. https://youtu.be/POkFZhMbcpg Ok, I was wrong. Pin 2 is 5V, not 3.3V. Major brain failure. Your readings look normal. Battery test shows 9.6V (ish) which is fine for a new 9V battery. Next test showed about 5V between Pin 2 (+5V - black lead) and pin 39 (ground - red lead). That ...
by rpdom
Mon Dec 10, 2018 9:58 pm
Forum: Off topic discussion
Topic: Why Avoid BASIC on RPi?
Replies: 699
Views: 16164

Re: Why Avoid BASIC on RPi?

DavidS wrote:
Mon Dec 10, 2018 9:47 pm
TWIN is not GUI based. So no not TWIN. And to run TWIN on newer version of RISC OS requires using !GraphTask to support the old screen mode.

I did say GUI based text editors.
My first ARM system didn't have a GUI. Also I didn't see a need for that overloaded bloat. ;-)
by rpdom
Mon Dec 10, 2018 8:12 pm
Forum: General discussion
Topic: MariaDB ODBC
Replies: 5
Views: 151

Re: MariaDB ODBC

Yes, it absolutely has to be ODBC. I don't so much mind MariaDB - it seems to just be some fork of MySQL... (so long as it works with the MySQL syntax)... this of course leads me to why this is so poorly supported... im pretty sure a MySQL driver of ODBC would work fine for MariaDB... libmyodbc see...
by rpdom
Mon Dec 10, 2018 7:18 pm
Forum: Off topic discussion
Topic: Why Avoid BASIC on RPi?
Replies: 699
Views: 16164

Re: Why Avoid BASIC on RPi?

The GUI based text editor built into the OS ROM (from RISC OS 3.1 on) has this ability, it is called !Edit. Every text editor on RISC OS has been able to do this. Even TWIN? That's the editor I used to start with with ARM based systems. It didn't (AFAIK) tokenise anything. BASIC files were just tex...
by rpdom
Mon Dec 10, 2018 12:36 pm
Forum: Advanced users
Topic: SSH via Docker
Replies: 2
Views: 89

Re: SSH via Docker

Creating your own VPN hub seems to be a common way. https://jordancrawford.kiwi/setting-up-tinc/ That's pretty much the way I do it, except I have two "cloud" tinc servers, one at Vultr and one at Digital Ocean. This means I can still connect to my home network if one of them is unavailable. I also...
by rpdom
Mon Dec 10, 2018 6:25 am
Forum: Troubleshooting
Topic: GPIO troubles
Replies: 4
Views: 109

Re: GPIO troubles

Is it possible you are measuring the pins the wrong way? All the Ground pins on the Pi are connected together. It is impossible for any of them to be anything other then 0V (when compared to any other ground pin). Check https://pinout.xyz for the proper orientation of the pins. Getting voltages like...
by rpdom
Mon Dec 10, 2018 6:04 am
Forum: Advanced users
Topic: Need help making a deb package
Replies: 3
Views: 126

Re: Need help making a deb package

There are plenty of Debian guides on how to make a .deb file. I've made a few for local use myself. It's mostly a matter of building the file structure that the files will need to be installed to (with correct permissions and ownership set), then creating some files in a "DEBIAN" sub-directory which...
by rpdom
Sun Dec 09, 2018 6:16 pm
Forum: Troubleshooting
Topic: Broken Pi? (SMD part came off)
Replies: 5
Views: 138

Re: Broken Pi? (SMD part came off)

Yes, you can boot up the Pi without issues, just, as you have guessed, the WiFi won't work (or will have a very short range).
See this thread for details of what the part is and does: viewtopic.php?t=200759
by rpdom
Sat Dec 08, 2018 8:58 pm
Forum: Troubleshooting
Topic: Momentarily 3.3V pin shorted to ground, Pi 3B+ won't boot up
Replies: 11
Views: 282

Re: Momentarily 3.3V pin shorted to ground, Pi 3B+ won't boot up

The "it should not" part is an opinion. The opinion depends on one's interpretation of "overcurrent protection" in the sentence "Fault protection features include input undervoltage lockout, overcurrent protection, and thermal protection" in the data sheet https://www.exar.com/ds/mxl7704.pdf. Readi...
by rpdom
Sat Dec 08, 2018 5:13 pm
Forum: Troubleshooting
Topic: Momentarily 3.3V pin shorted to ground, Pi 3B+ won't boot up
Replies: 11
Views: 282

Re: Momentarily 3.3V pin shorted to ground, Pi 3B+ won't boot up

The "it should not" part is an opinion. There are no warnings that shorting the 3.3V rail to ground will kill the regulator, but it is certainly not something that you should do. Shorting the 5V to 3.3V or any GPIO (equally easy) on other Pi models will fry the SoC. I don't see anyone stating that i...
by rpdom
Sat Dec 08, 2018 2:07 pm
Forum: Off topic discussion
Topic: Lithography, PiServer, overclocking
Replies: 5
Views: 232

Re: Lithography, PiServer, overclocking

ProDigit wrote:
Sat Dec 08, 2018 10:31 am
Lithography:
Since phones are aiming towards 7nm lithography, when can we see a new die shrink for the Raspberry Pi CPU?
The current Broadcom is like what, 28nm?
The current Broadcom SoC is 40nm. The next Pi will probably use 28nm. Going smaller than that will make the price too high.
by rpdom
Sat Dec 08, 2018 11:19 am
Forum: Networking and servers
Topic: mount a cifs share using fstab
Replies: 17
Views: 288

Re: mount a cifs share using fstab

Ok, I can see some potential issues there. All right. I am trying this using cron. I start this python script: #!/usr/bin/python3 My crontab entry is @reboot sudo python /home/pi/Desktop/python/startup.py Your code is set to use python3, but in the crontab you have just python, which I believe still...
by rpdom
Fri Dec 07, 2018 6:40 pm
Forum: HATs and other add-ons
Topic: PoE Port Expansion
Replies: 7
Views: 164

Re: PoE Port Expansion

I don't think I understand you. The PoE HAT powers the Pi over the Ethernet cable from a PoE capable network Switch, or a non-PoE Switch used in conjunction with a PoE injector. If the IP phones require PoE themselves, they would also get that from the PoE capable Switch - nothing to do with the Pi....
by rpdom
Fri Dec 07, 2018 10:06 am
Forum: Troubleshooting
Topic: MariaDB install does not ask for root password
Replies: 2
Views: 52

Re: MariaDB install does not ask for root password

sudo mysql -u root
will get you logged in as the root user. No password required, but it only works locally from the root user.

After that you can set up permissions for other users as required.
by rpdom
Fri Dec 07, 2018 8:34 am
Forum: General discussion
Topic: Complements to RPiT
Replies: 21
Views: 574

Re: Complements to RPiT

i do remember a RPi blog post about the better power management IC that they brought out with the 3B+, I had forgotten about that until you brought it up. I thought they had done something inside the SoC too. Increased the thickness of the paths to the CPU cores. Not sure. Not sure either, other th...
by rpdom
Fri Dec 07, 2018 3:27 am
Forum: Graphics, sound and multimedia
Topic: OSC-controlled OMXplayer to composite output
Replies: 3
Views: 98

Re: OSC-controlled OMXplayer to composite output

Generally, unless forced in /boot/config.txt, the Pi will use HDMI if an HDMI display is detected at boot time, otherwise it will default to composite output. It can't do both at the same time.
by rpdom
Thu Dec 06, 2018 7:02 am
Forum: Other projects
Topic: Getting the pi to pretend it is a keyboard
Replies: 4
Views: 131

Re: Getting the pi to pretend it is a keyboard

First thoughts are: Pi Zero range can present as USB devices in gadget mode. There are drivers for HID devices like keyboards. It shouldn't be too hard to make a Zero look like a USB keyboard abd send the right button presses. Pi Zero does not support the official Pi touch screen display. It may be ...
by rpdom
Wed Dec 05, 2018 7:40 pm
Forum: General discussion
Topic: About Raspberry Pi power and Powered USB hub device
Replies: 27
Views: 565

Re: About Raspberry Pi power and Powered USB hub device

drgeoff wrote:
Wed Dec 05, 2018 7:23 pm
Hands up all those who don't have a 12 volt solar system.
I'd like to, but you just can't get the sun you know.

Maybe a rain powered system?
by rpdom
Wed Dec 05, 2018 7:12 pm
Forum: General discussion
Topic: Mother-Daughter Pi's?
Replies: 9
Views: 305

Re: Mother-Daughter Pi's?

Depending on the model of Pi, wired or wireless network. That can work even if they are a stand-alone network with no connection to the internet. That is one of the few cases you might want to set up real static IP addresses, unless you have one of the Pi working as a DHCP server. Use something like...

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