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by Gavinmc42
Sat Jun 04, 2016 12:11 pm
Forum: General discussion
Topic: BEWARE when placing multiple orders at ‚The Pi Hut‘
Replies: 22
Views: 5154

Re: BEWARE when placing multiple orders at ‚The Pi Hut‘

OP complaining about getting two Zero's at once? Wish I was so lucky, I ordered one, they acknowledged and shipped same day. That is quick service. They will be getting more orders from me. Might have been the case of two different people taken two different orders and packing was smart enough to fi...
by Gavinmc42
Sat Jun 04, 2016 11:50 am
Forum: Troubleshooting
Topic: I2C problem - can´t talk to sensor
Replies: 14
Views: 1818

Re: I2C problem - can´t talk to sensor

I use device tree options in config.txt dtparam=i2c1_baudrate=10000 Have you tried a different i2c sensor? Just to make sure the i2c is working. I use i2c temperature sensors a lot, easy to get and use. For testing I use a Cypress miniprog 3 which can act as a USB to i2c adapter. Running Bridge soft...
by Gavinmc42
Sat Jun 04, 2016 9:16 am
Forum: Troubleshooting
Topic: I2C problem - can´t talk to sensor
Replies: 14
Views: 1818

Re: I2C problem - can´t talk to sensor

What speed have you got the i2c at?
It might detect at a higher speed but not read.
I sometimes goes at low as 10000baud.
by Gavinmc42
Sat Jun 04, 2016 5:39 am
Forum: Camera board
Topic: PiKrellCam: motion vector detect + OSD web interface
Replies: 1460
Views: 318021

Re: PiKrellCam: motion vector detect + OSD web interface

Number crunching. Have not done timelapse, it's on the list :lol: Timelapse an image every sec= 86400/day Every 10secs=8640/day, every minute 1440/day Pi2 would take 1 hour to avconv 1440 images, B+ = half a day to do it? Pi2 a bit under 3 days to compress 86400 images. Starting see why a speedomete...
by Gavinmc42
Sat Jun 04, 2016 5:18 am
Forum: Camera board
Topic: PiKrellCam: motion vector detect + OSD web interface
Replies: 1460
Views: 318021

Re: PiKrellCam: motion vector detect + OSD web interface

Should read the instructions before offering opinions :oops: With the default setup on a Pi 2, avconv converts 100 timelapse jpegs into about a 17 second 12 MByte video in about 4 minutes. Toggle show timelapse on the OSD to monitor the converted MP4 size progress. A B+ with one core can be 12 times...
by Gavinmc42
Sat Jun 04, 2016 5:01 am
Forum: Camera board
Topic: PiKrellCam: motion vector detect + OSD web interface
Replies: 1460
Views: 318021

Re: PiKrellCam: motion vector detect + OSD web interface

1GB is twice 512MB but it is not quite the same. A big OS might take 100MB+ plus GPU 128MB. Leaving 250MB on a B free but more than 750MB free on the 2-3's. Video converters are real CPU/memory hogs. Is there any converter that can use 4 cores? Looking at the block diagram, Billw's code looks like i...
by Gavinmc42
Sat Jun 04, 2016 4:38 am
Forum: General discussion
Topic: Power Pi Zero From Pi 2
Replies: 1
Views: 478

Re: Power Pi Zero From Pi 2

I will let you know next week when my 1st Zero's arrive:) Depends how much voltage/current you need. Just the Zero should be fine, if you add camera and need HDMI then maybe. I will be doing doing a double/triple camera system, one 2B and 1-2 Zero's. With the 2B sharing the network to the Zero as yo...
by Gavinmc42
Sat Jun 04, 2016 3:09 am
Forum: Camera board
Topic: PiKrellCam: motion vector detect + OSD web interface
Replies: 1460
Views: 318021

Re: PiKrellCam: motion vector detect + OSD web interface

jbeale, 85% memory on a B+, 2B or 3B?
512MB or 1GB.
V2's will probably end up on my Pi2's.
by Gavinmc42
Sat Jun 04, 2016 3:03 am
Forum: Troubleshooting
Topic: I2C problem - can´t talk to sensor
Replies: 14
Views: 1818

Re: I2C problem - can´t talk to sensor

Try some shell script, it could be the python code. I always test my i2c sensors on Windows with a USB to i2c adapter first. If I can detect it then I know it is working, can also test reading/writing registers. Then sudo i2cdetect -y 1 on the Pi, this will find the address. Then i2cget -y 1 address...
by Gavinmc42
Sat Jun 04, 2016 2:52 am
Forum: Camera board
Topic: New 8MP Camera - Q&A thread
Replies: 450
Views: 192551

Re: New 8MP Camera - Q&A thread

jbeale, I think they rely on the cellphone camera being autofocus to adjust for the adaptor optics not being exactly neutral-focus (collimated in != collimated out). I suspect you're right, might need some serious mounting and focus adjustment. But that is all part of the fun with RPi's. Maybe I wil...
by Gavinmc42
Sat Jun 04, 2016 1:40 am
Forum: Camera board
Topic: New 8MP Camera - Q&A thread
Replies: 450
Views: 192551

Re: New 8MP Camera - Q&A thread

I think the lowest risk, if you don't have access to a 3D printer to make the lens spanners, is to use add on lens. Mobile phone clip-ons lens, seen these as low as $2. Got my eye a 12x telephoto clip on for $7 and will get another wide angle one as well. For a bird box you will probably need a macr...
by Gavinmc42
Fri Jun 03, 2016 12:57 pm
Forum: Camera board
Topic: PiKrellCam: motion vector detect + OSD web interface
Replies: 1460
Views: 318021

Re: PiKrellCam: motion vector detect + OSD web interface

To answer my own question. Dietpi + pikrellcam :( Looks to be issues with user, permissions and nginx at the least. Not working but only 650MB, about half Jessie Lite. Dietpi seems to be more designed as an easy to setup server. Got some nice features, uses ramfs for lots instead of SD card. Can aut...
by Gavinmc42
Fri Jun 03, 2016 6:31 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Connecting 32 I2C Slaves
Replies: 3
Views: 779

Re: Connecting 32 I2C Slaves

Running 12 sensors on 5+ meter of cable right now, have done 27+ sensors. Longer cables need slower speeds. added this to config.txt dtparam=i2c1_baudrate=10000 Only reading every minute so if it takes a few seconds it is no problem. Some stuff running 24/7 for nearly 2years, without issues. There a...
by Gavinmc42
Fri Jun 03, 2016 4:44 am
Forum: Camera board
Topic: PiKrellCam: motion vector detect + OSD web interface
Replies: 1460
Views: 318021

Re: PiKrellCam: motion vector detect + OSD web interface

I'm currently using Jessie Lite.
Went looking for a NAS OS to backup the videos I get from all the cameras.
Came across this
http://dietpi.com/

Anyone tried it with pikrellcam?
by Gavinmc42
Thu Jun 02, 2016 2:49 am
Forum: Camera board
Topic: PiKrellCam: motion vector detect + OSD web interface
Replies: 1460
Views: 318021

Re: PiKrellCam: motion vector detect + OSD web interface

Anyone tried pikrellcam on a Zero? Got two Zero's on the way with cables. I think there is away to do networking over serial? Not sure max baud rate on the Zero, 10Mbaud? Cannot connect to 3B because of Uart change? Pi B, B+, 2B with serial to a Zero mean I only have to network the B. Can have the B...
by Gavinmc42
Wed Jun 01, 2016 11:29 am
Forum: General discussion
Topic: Start your engines.. pi zero in 5 minutes !
Replies: 53
Views: 8217

Re: Start your engines.. pi zero in 5 minutes !

Thanks for the note mikerr. Pihut - 4 pounds Pi plus 4 pounds shipping to Oz. Yippee, hope the order got in before they ran out, I type slow :( Shh don't tell, but I ordered one from Pimoroni too, with lots of camera cables. What's two times Zero? Fun, fun, fun. Adafruit sends me email at 2am, all o...
by Gavinmc42
Wed Jun 01, 2016 3:15 am
Forum: Graphics programming
Topic: Real time gauge
Replies: 10
Views: 10001

Re: Real time gauge

JavaFX will do it.
Start with stopwatch example
I've done instrument cluster overlay on image and videos.

Still looking for something better and smaller, OpenVG?

Will need to use javascript or similar with sockets if it is a web server display.
by Gavinmc42
Tue May 31, 2016 6:20 am
Forum: Camera board
Topic: Camera module with a lenses?
Replies: 9
Views: 2960

Re: Camera module with a lenses?

You could grab a clip on macro lens used for mobile phones and mount it in front of the normal lens.
All types on mobile phone clip/magnetic lens are available.
ebay etc $2-20? three packs etc
Plenty of links in the forum, google etc.

Going inside a bird box it is going to be close up/macro anyway.
by Gavinmc42
Mon May 30, 2016 5:20 am
Forum: Camera board
Topic: Live Lightfield Rig with 12 RPi cameras
Replies: 7
Views: 1752

Re: Live Lightfield Rig with 12 RPi cameras

Good use for the new Pi Zero's with camera?

Then a Pi Zero cluster
http://hackaday.com/2016/01/25/raspberr ... s-a-punch/
to crunch the numbers using QPUlib?
https://github.com/mn416/QPULib
by Gavinmc42
Mon May 30, 2016 4:23 am
Forum: Camera board
Topic: Recyle video camera lens
Replies: 5
Views: 1012

Re: Recyle video camera lens

Thanks guys. Now I know how to make fine adjust screws and the procedure to focus. https://en.wikipedia.org/wiki/Differential_screw Time to find my tiny tap and die sets. Hmm M3=0.5, M2=0.4 = 0.1mm diff Same as M4=0.7, M5=0.8mm = 0.1mm diff M3 and M2.5 = 0.05mm diff Combine metric and imperial? Spri...
by Gavinmc42
Sun May 29, 2016 11:26 am
Forum: Camera board
Topic: Recyle video camera lens
Replies: 5
Views: 1012

Re: Recyle video camera lens

Tricky focusing, the M6 lens is 0.35 pitch. Standard screw sizes M3 = 0.5mm pitch, M2=0.4mm. Not going to be much it focus wise. The Sony Trinicon tube looks to be about 10mm. Triple Lens Super 8mm, great idea, should be a better match. Maybe even get a Zero and battery into the case? We could call ...
by Gavinmc42
Sun May 29, 2016 7:26 am
Forum: Other projects
Topic: din rail anyone?
Replies: 7
Views: 5931

Re: din rail anyone?

Got DIN cases from RS or maybe Element14.
They have old B and new B+, P2, P3? suitable ones.
Did my first install last week on a Pi in one.
Would be nice if someone did a display that fits, hint.
by Gavinmc42
Sun May 29, 2016 6:56 am
Forum: Camera board
Topic: Recyle video camera lens
Replies: 5
Views: 1012

Recyle video camera lens

Needed a telephoto lens and a while back found a Toshiba Beta video camera in the bin. I had swapped a V2 lens on a V1 Noir, trying to get it off did lots of damage. Had a V1 Noir with no lens and a broken lens mount, had a Betamax in pieces. Got around to putting them together and trying the lens t...
by Gavinmc42
Sat May 28, 2016 10:41 pm
Forum: Raspbian
Topic: RASPBIAN JESSIE LITE
Replies: 11
Views: 18458

Re: RASPBIAN JESSIE LITE

Or just use a real small OS like piCore. About 50MB with SSH and a bit more with easy installable X. Boots fast, runs from ram and does not wear out SD cards. A bit more DIY and less options but great for devices. Comes with Midnight Commander for those who can remember back before GUI's. When I hav...
by Gavinmc42
Sat May 28, 2016 8:15 am
Forum: Camera board
Topic: PiKrellCam: motion vector detect + OSD web interface
Replies: 1460
Views: 318021

Re: PiKrellCam: motion vector detect + OSD web interface

jbeale, Are they model B's or B+? Silver capacitor near the USB power? Only one of my old ones is flaky. Probably also depends on my power supply and cable. Going to need IR illumination flood lights, just had a suspected stalker car pull up outside just after dark. Turned lights off, back on again,...

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