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by AJB2K3
Fri Jul 20, 2018 7:05 pm
Forum: Off topic discussion
Topic: 'You are permanently banned' error
Replies: 17
Views: 1192

Re: 'You are permanently banned' error

This is actually a legacy web-wide bug related to IPV4 ip addresses. The problem is that alot of computer networks still use the outgoing ISP IPV4 addressing system which is limited to around 4.2 billion addresses. everytime you reset your modem or your mobile device connects to the web it is given ...
by AJB2K3
Sat Jul 14, 2018 10:01 am
Forum: Off topic discussion
Topic: Waveshare 7" screen hacking for non RPI projects.
Replies: 0
Views: 366

Waveshare 7" screen hacking for non RPI projects.

Sorry if this is not the correct place to post as I am lost for ideas on who to ask. I have a series C rev2.1 7" capacitive screen from Waveshare. I have all the RPI's set up to use it properly, however, If I use it as an HDMI screen for my camera, the image is offset to the right! (just enough lef...
by AJB2K3
Mon May 21, 2018 7:25 am
Forum: The MagPi
Topic: MagPi 69 3D Printing w/R-Pi and OctoPrint article
Replies: 6
Views: 2234

Re: MagPi 69 3D Printing w/R-Pi and OctoPrint article

There are quite a few typo's in this and the connected articles but what got me the most was the £99 price.
I looked on the site and found it was £119.
I find this rather misleading to readers.

BTW has anyone used this printer and is it really any good?
by AJB2K3
Sun Apr 01, 2018 11:46 am
Forum: Camera board
Topic: Pi Zero W FPV camera
Replies: 0
Views: 367

Pi Zero W FPV camera

Sorry but not get any useful search results! I'm looking to buy a cheep entry lever (toy) drone but the camera's are inferior to a Picamera. I have a Zero W and camera sat on my desk that I would like to use as an "Upgrade" to the onboard camera. Can anyone point me to a link that will show me how ...
by AJB2K3
Mon Mar 19, 2018 5:27 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: MIPI DSI screen usability Help.
Replies: 4
Views: 560

Re: MIPI DSI screen usability Help.

aBUGSworstnightmare wrote:
Sun Mar 18, 2018 4:53 pm
1st no: there is no adapter
2nd no: DSI displays are currently not supported; only the official one can use DSI
Thats a shame.

is there a connector/breakout board for the connection on the screen?
by AJB2K3
Sun Mar 18, 2018 9:15 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: MIPI DSI screen usability Help.
Replies: 4
Views: 560

MIPI DSI screen usability Help.

Screen identification and use. I have a screen from a Sony Experia J which i believe uses MIPI Dsi but is has this tiny connector. MIpidsifix.jpeg Here is a scan of the back with the only identification numbers I can find. screenredux.jpg Is there an adapter that will allow me to use this with the r...
by AJB2K3
Fri Jan 19, 2018 8:47 pm
Forum: Graphics, sound and multimedia
Topic: Identify Audio Channels (hw:x,y) for two USB Audio Adaptors
Replies: 18
Views: 1842

Re: Identify Audio Channels (hw:x,y) for two USB Audio Adaptors

Replying to myself. There's been some discussion about this on my local LUG Mailing List, but I've had problems posting the output of aplay -l after a reboot, so here it is: [email protected]:~$ aplay -l **** List of PLAYBACK Hardware Devices **** card 1: Device [USB PnP Sound Device], device 0: USB A...
by AJB2K3
Fri Dec 29, 2017 10:03 pm
Forum: Other projects
Topic: Raspberry Pi Dcc Model Railway Controller
Replies: 2
Views: 2765

Re: Raspberry Pi Dcc Model Railway Controller

Hi All, I have been working on a dcc commander for my model railway and using the raspberry pi to control it all. It has been surprisingly easy to do so thought I would share my code and circuit in case anyone else was trying to do similar. It is very basic at the minute but does provide enough to ...
by AJB2K3
Fri Dec 29, 2017 9:53 pm
Forum: General discussion
Topic: Some question of a newbie
Replies: 15
Views: 864

Re: Some question of a newbie

In the old days.... Shutdown would not work unless issued as superuser due to unix security settings. shutdown Sends the command to shut down the system but waits for all process to end their tasks. shutdown -h same as above but halts all process before shutdown. sudo shutdown -h now force shuts dow...
by AJB2K3
Thu Dec 28, 2017 8:58 pm
Forum: General discussion
Topic: Weird behaviour - after energy goes donw the external disk is mount a new folder
Replies: 8
Views: 480

Re: Weird behaviour - after energy goes donw the external disk is mount a new folder

This still happens?
I thought the had fixed it.

Have you tried ejecting the device first before reconnecting? using mount and umount?
by AJB2K3
Wed Dec 27, 2017 12:08 pm
Forum: General discussion
Topic: Alumininium heatsinks with thermally insulating adhesive.
Replies: 18
Views: 5930

Re: Alumininium heatsinks with thermally insulating adhesive.

Wow, shows how out of touch I am, I didn't know Artic silver made an adhesive version.
I am going to have to buy some for my 3d printer as the stepper drivers had no adhesive with the heatsinks!
by AJB2K3
Tue Dec 26, 2017 4:48 pm
Forum: Automation, sensing and robotics
Topic: 24V to 5V DC to DC conversion
Replies: 21
Views: 14458

Re: 24V to 5V DC to DC conversion

I Have used those modules with no problems to drop 12v to 3v6, the pot screw tends to be iffy on them but they are far safer and run at a much lower temp then their linear counterpart. (burnt my hand on a linear module!)
by AJB2K3
Sat Dec 23, 2017 6:53 pm
Forum: Other projects
Topic: Raspberry Pi Dcc Model Railway Controller
Replies: 2
Views: 2765

Re: Raspberry Pi Dcc Model Railway Controller

Nice, will have to get my track out and test sometime.
Have you looked into Open DCC?
https://www.opendcc.de/index_e.html
by AJB2K3
Sat Dec 23, 2017 6:50 pm
Forum: Other projects
Topic: Options for a car setup with music and Android interface (esp. Google Assistant interaction)
Replies: 2
Views: 583

Re: Options for a car setup with music and Android interface (esp. Google Assistant interaction)

I don't think the zero can handle what you want. I use a 2 but told that the 3 is far better.

If you want ideas then you need to look up the A/V and media sections of the forums.
by AJB2K3
Sat Dec 23, 2017 6:41 pm
Forum: Other projects
Topic: Ws2812 LED pixels at 12v
Replies: 2
Views: 1709

Re: Ws2812 LED pixels at 12v

I have the WS2811 set of lights @12v.
I see the arduino uno can operate them by connecting the the neg and sig to the strip (seperate +12 and minus power supply connected to strip with all grounds linked. but can't get a clear understanding of connecting the pi to the strip!
by AJB2K3
Fri Dec 01, 2017 9:11 am
Forum: Graphics, sound and multimedia
Topic: Amplified USB sound card?
Replies: 2
Views: 503

Re: Amplified USB sound card?

I use one of these as the soundblasters can be tricky to get working.
These also have 5.1 sound!
https://www.ebay.co.uk/itm/6-Channel-5- ... SwmtJXVo62
by AJB2K3
Wed Nov 29, 2017 8:03 pm
Forum: Troubleshooting
Topic: gpsd autostart on RPi3
Replies: 2
Views: 318

Re: gpsd autostart on RPi3

There is as I had to do it on my setup (I haven't had time to do anymore work to it)
Something to do with the Init files but can't remember or find my pi!
Search for auto start demon.
by AJB2K3
Wed Nov 29, 2017 8:00 pm
Forum: Beginners
Topic: Missing something - Kodi issues
Replies: 7
Views: 724

Re: Missing something - Kodi issues

I have tried 4 times installing kodi on 2 different cards. I put them in my pi and they won't play anything. It g goes through the steps of loading a movie. When it gets to 100% the screen goes black then returns to the desk top screen. It's got to be something I'm missing. It's done it 4 times wit...
by AJB2K3
Wed Nov 15, 2017 8:36 pm
Forum: Other projects
Topic: Solar power advice
Replies: 10
Views: 2119

Re: Solar power advice

England or Wales? Run a reasonable size solar panel. Scotland? Run it off the mains. Ireland? Use a waterwheel instead. (Yes I know only NI is part of Britain.) Parallel connected to a wind turbine and your set for life! (I recognise the joke!) Don't use a liner power reducer as they waste alot of ...
by AJB2K3
Sun Oct 29, 2017 8:38 pm
Forum: Automation, sensing and robotics
Topic: Using disk drive motors.
Replies: 7
Views: 774

Re: Using disk drive motors.

Look for Raspberry pi laser engraver.
Uses the stepper motors found in older optical drives (newer ones use motors and encoder wheels.)
by AJB2K3
Sun Oct 29, 2017 8:26 am
Forum: Other projects
Topic: Pzero as NiCd charge controller.
Replies: 0
Views: 228

Pzero as NiCd charge controller.

I am in the process of building a 3V6 6000mah battery and need to build a charge controller with 8 cell temperature sensor.
Disclaimer: I have no Idea what I'm doing!

What extra components (i2c temperature sensors?) would I need to use the zero as a BMS/charge controller for this pack?
by AJB2K3
Wed Oct 18, 2017 8:25 pm
Forum: Automation, sensing and robotics
Topic: Hat design help (3d Scanner)
Replies: 4
Views: 830

Re: Hat design help (3d Scanner)

Ok, this is going to get complicated I'm building a FreeLSS 3d scanner and I'm struggling with the electronics. Basically, I need to design a board that can drive two 5V line lasers, and a 12V stepper (using a DRV8825 driver) I've tried looking at the circuit boards on the freelss website, and cant...
by AJB2K3
Mon Oct 16, 2017 4:45 pm
Forum: Other projects
Topic: Nicd Battery charging Help.
Replies: 4
Views: 803

Re: Nicd Battery charging Help.

I assembled the first of the seven packs yesterday and it came out at 15.3 v! I'm looking to "Underclock" the charging of the "Pack" to 12v at C/10 (thanks by the way for the link as I had been searching all weekend and google just would not show that page) I know there are solar controllers out the...
by AJB2K3
Sun Oct 15, 2017 10:06 am
Forum: Other projects
Topic: Nicd Battery charging Help.
Replies: 4
Views: 803

Re: Nicd Battery charging Help.

1, You haven't supplied enough information about the solar panel or the "solar charger controller", so all I can do is guess. I'm guessing it's designed to have a 14.4v NiCd battery attached, and can successfully charge it. But there are lots of different battery technologies, each requiring differ...
by AJB2K3
Sun Oct 15, 2017 8:47 am
Forum: Other projects
Topic: Nicd Battery charging Help.
Replies: 4
Views: 803

Nicd Battery charging Help.

I have assembled the battery packs required to build a 14.4v 10.5Ah battery which will run off a solar panel, but I have hit a snag. 1, Can i just connect the 14.4v connection to the solar charger controllers battery port and leave it to manage the charge? 2, Is it possible to connect a secondary ta...

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