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by Gavinmc42
Tue Jul 19, 2016 12:45 am
Forum: Camera board
Topic: PiKrellCam: motion vector detect + OSD web interface
Replies: 1440
Views: 299228

Re: PiKrellCam: motion vector detect + OSD web interface

Just had a SDcard fill up on the weekend and pikrellcam started doing strange stuff. Copied all the media files to a network drive with Filezilla. I have Midnight Commander installed so I ssh into the Pi to have a look around then rm the media files. Pikrellcam still did not work properly after rebo...
by Gavinmc42
Thu Jul 14, 2016 3:30 am
Forum: Networking and servers
Topic: What server OS?
Replies: 4
Views: 13168

Re: What server OS?

If it is just going to be a server maybe Jessie Lite? Will save you 3GB of space and remove lots of stuff you won't need. If you already use Jessie on a desktop Pi it is less painful to debug Jessie Lite. ssh into Jessie NAS and you can do lots from a terminal. Have not found the best server OS for ...
by Gavinmc42
Thu Jul 14, 2016 2:50 am
Forum: Troubleshooting
Topic: How i2cdetect works or what it needs to see to detect a Dev.
Replies: 9
Views: 3001

Re: How i2cdetect works or what it needs to see to detect a

What/where did the PIC182525 come from? Are you using the PIC182525 as a slave and has it been programmed? I use PSoC as i2c slaves for Pi's, i2cdetect won't see them until they have been programmed. UU probably means you have a RTC already connected and that it is used by the kernel? Or is it the P...
by Gavinmc42
Wed Jul 13, 2016 8:50 am
Forum: Automation, sensing and robotics
Topic: Robot APIs - Getting the most out of community
Replies: 15
Views: 2657

Re: Robot APIs - Getting the most out of community

morphy, they look like the 130 size motor, like this one. http://www.hobbyparts.com.au/store/partslist/motorsdc238x306mm/motorsdc238x306mm/a/1/ It is the standard hobby motor for plastic gear motors, Tamiya etc. They tend to be high RPM so need a lot of reduction. They are also low voltage and draw ...
by Gavinmc42
Tue Jul 12, 2016 4:44 am
Forum: General discussion
Topic: Best desktop class Operating Systems for new Pi Zero?
Replies: 19
Views: 10697

Re: Best desktop class Operating Systems for new Pi Zero?

Start with Jessie. Grab a bunch of SD cards and try as many OS's as you can. I use Jessie, Ubuntu Mate, Jessie lite, piCore and Ultibo. Jessie because it is the most up to date and comes with everything. Mate because it just like normal Linux, but it runs on a Pi3, don't think it will run on the Zer...
by Gavinmc42
Tue Jul 12, 2016 3:42 am
Forum: Automation, sensing and robotics
Topic: Robot APIs - Getting the most out of community
Replies: 15
Views: 2657

Re: Robot APIs - Getting the most out of community

Yep those seem to be the gearmotors most low cost chassis use. Don't ship to OZ and exchange rate will hurt any way. Add camera, do some vision processing to drive in a straight line? Did some more googling, there are low cost stepper with gearboxes. https://arduino-info.wikispaces.com/SmallSteppers...
by Gavinmc42
Tue Jul 12, 2016 3:04 am
Forum: Camera board
Topic: Picamera_cv colours wrong after update/upgrade
Replies: 12
Views: 3010

Re: Picamera_cv colours wrong after update/upgrade

And the V2 image is wider than the V1, shorter lens 3.0 instead of 3.6mm.
Gives a wider field of view, 64 x 48 instead of 56 x 41 degrees
jbeale is the author of this;)
http://elinux.org/Rpi_Camera_Module
by Gavinmc42
Tue Jul 12, 2016 2:58 am
Forum: Troubleshooting
Topic: avoiding SD corruption
Replies: 3
Views: 709

Re: avoiding SD corruption

SD card corruption depends on the OS you are running. Jessie likes to write stuff before shutting down, update time stamps etc. To avoid this I run piCore which boots to ram from the 1st partition and loads the OS/applications from the second partition. My data is written to a third partition. Might...
by Gavinmc42
Tue Jul 12, 2016 1:23 am
Forum: Automation, sensing and robotics
Topic: Raspberry Pi as a motor controller and counter
Replies: 8
Views: 2005

Re: Raspberry Pi as a motor controller and counter

I have controlled a stepper motor on a Pi running piCore Linux with micropython doing the steps. It was good enough for what I was doing but you could hear the OS interrupting the timing. The very fine wire might snap on any jerking. Been playing with Ultibo, a Pascal bare metal toolset for Pi's. No...
by Gavinmc42
Mon Jul 11, 2016 4:23 am
Forum: Automation, sensing and robotics
Topic: Robot APIs - Getting the most out of community
Replies: 15
Views: 2657

Re: Robot APIs - Getting the most out of community

Mikronauts, love the $5 Zero too, was being sarcastic ;) And yes I want to buy 10 at a time and put them in $5-10 chassis. Want to make swarming bots, give them tiny clippers and teach them to mow the lawn :P . To get into schools in large qty, needs to be low cost and not wear out. skspurling, ther...
by Gavinmc42
Mon Jul 11, 2016 1:37 am
Forum: Off topic discussion
Topic: Cypress
Replies: 10
Views: 2726

Re: Cypress

Pi's make the best IoT gadgets ;) Just don't connect them to the Internet. Local networking is fine, they do it easily. Putting your data onto the Cloud and pay someone to look after it? Just had the "pleasure" of installing Windows 10 at home, why do I need to sign into MS? The internet is bad enou...
by Gavinmc42
Fri Jul 08, 2016 7:57 am
Forum: General discussion
Topic: Measuring DC Voltage and curren with Raspberry Pi
Replies: 7
Views: 1910

Re: Measuring DC Voltage and curren with Raspberry Pi

LTC2945 - i2c voltage up to 80V, current and power
by Gavinmc42
Fri Jul 08, 2016 6:02 am
Forum: Automation, sensing and robotics
Topic: Robot APIs - Getting the most out of community
Replies: 15
Views: 2657

Re: Robot APIs - Getting the most out of community

$5 chassis garbage? yep just like a $5 CPU is garbage:) Just because it hasn't been done doesn't mean it can't be done. Not going to happen unless volumes get high enough. Toy motors are $1 as spare parts, plastic gear box? Can get a pack of 10 gearbox motors for $30 on Alibaba. $5 maybe hard, but <...
by Gavinmc42
Fri Jul 08, 2016 3:14 am
Forum: Automation, sensing and robotics
Topic: Robot APIs - Getting the most out of community
Replies: 15
Views: 2657

Re: Robot APIs - Getting the most out of community

There is no API's out there apart from what you have come across and Navio etc. There are hats that do some stuff but not everything. Without fixed hardware, API's end up bloated like ROS. Now that the Pi Zero 1.3 is somewhat easier to get, it is something that would be really good for the entry poi...
by Gavinmc42
Sun Jul 03, 2016 1:02 pm
Forum: Camera board
Topic: PiKrellCam: motion vector detect + OSD web interface
Replies: 1440
Views: 299228

Re: PiKrellCam: motion vector detect + OSD web interface

What are the video and still resolutions? Finally got around to installing a V2 as my main camera. Was going through Pikrellcam's res options and decided 1644 x 922 gave me the best option. I like the wider horizontal field of view with the V2 lens and don't need the vertical. With the V1 there is n...
by Gavinmc42
Sat Jul 02, 2016 12:28 pm
Forum: General discussion
Topic: Raspberry Pi - Which model do I need?
Replies: 7
Views: 1395

Re: Raspberry Pi - Which model do I need?

Cool, new sensor stuff I did not know about http://www.zmdi.com/sites/default/files/A_Tutorial_of_Digital_SENT_Interface.pdf This sort of stuff really needs good timing. A dedicated cpu, Microchip, AVR, ARM Cortex Mx or a single ARM core of the Pi 2 or 3. It should be possible on a single core Pi ru...
by Gavinmc42
Sat Jul 02, 2016 12:06 pm
Forum: General discussion
Topic: What should I get for the SD Card of Pi 3 B?
Replies: 16
Views: 3346

Re: What should I get for the SD Card of Pi 3 B?

It will also depend what you put on it as the OS and what you do with the rest of the space. Full Jessie, get a 8-16GB. Jessie Lite 2-8GB piCore 128MB Ultibo 32MB Smaller OS's load faster so speed is less of an issue. If speed is important, use a boot sdcard and put the OS on a USB stick. Get what e...
by Gavinmc42
Sat Jul 02, 2016 11:50 am
Forum: Camera board
Topic: enabling autofocus for the NoIR 2.1
Replies: 2
Views: 1182

Re: enabling autofocus for the NoIR 2.1

Liquid lens are out there now. http://www.sunnyoptical.com/en/pro/009003002/index.html This looks like a liquid lens is added to the outside of a standard? lens. Probably still got some optics with the liquid lens doing the final focusing. May start seeing the end of voice coil motor focusing. Liqui...
by Gavinmc42
Thu Jun 30, 2016 4:57 am
Forum: General discussion
Topic: RPi powered AI beats human pilot in dogfight
Replies: 12
Views: 2902

Re: RPi powered AI beats human pilot in dogfight

Raspberry Pi Zero super cluster for training/learning the Fuzzy expressions? 100GPU's = 50 Zero's = $250 Then run the Fuzzy stuff on one Zero = $5 against a pilot with $$$$$$$$ of training. What's the current cost of F22 and F35? Replace drone operators with Pi's? MIB going to show up on RPF's doors...
by Gavinmc42
Wed Jun 29, 2016 12:14 pm
Forum: General discussion
Topic: RPi powered AI beats human pilot in dogfight
Replies: 12
Views: 2902

Re: RPi powered AI beats human pilot in dogfight

So a better floor cleaner robot should be easy now?
by Gavinmc42
Tue Jun 28, 2016 5:26 am
Forum: Beginners
Topic: Camera Module 24/7 Recording to 2TB ext-drive?
Replies: 7
Views: 3840

Re: Camera Module 24/7 Recording to 2TB ext-drive?

Pikrellcam and MotionEye OS can write to USB hard drives.
by Gavinmc42
Mon Jun 27, 2016 1:18 am
Forum: General discussion
Topic: Digital Input to Infrared Output
Replies: 1
Views: 306

Re: Digital Input to Infrared Output

LIRC
by Gavinmc42
Mon Jun 27, 2016 1:17 am
Forum: Off topic discussion
Topic: Supply chain
Replies: 88
Views: 13110

Re: Supply chain

Eben for PM? If he and the gang can overturn the SBC industry and education, why not government? Get a lots more factories running, turn out mega lots of Pi's and make Britain a world Pi superpower ;) Might have take over Royal Mail 1st to get those Pi's out. Ship chips n bits in, ship Pi's out, Rai...
by Gavinmc42
Sun Jun 26, 2016 11:22 am
Forum: Off topic discussion
Topic: Supply chain
Replies: 88
Views: 13110

Re: Supply chain

Get rid of all the pollies? Hmm, think the budget just got fixed. Langauges? Smalltalk for local government. Sensetalk for state government. Supertalk for federal government. All about to be superseded by a new version of Sensetalk called Sensecommon. Actually all decisions could be decided by a sim...
by Gavinmc42
Sun Jun 26, 2016 10:22 am
Forum: General discussion
Topic: raspberry pi 4?
Replies: 6
Views: 1791

Re: raspberry pi 4?

2GHz+ octa core A73 with 4GB of memory.
Feb 2018 release, 5GHz WiFi....
Rats, crystal ball batteries just ran out :(

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