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by Gavinmc42
Fri Jul 22, 2016 7:57 am
Forum: General discussion
Topic: Raspberry Pi 3 A?
Replies: 89
Views: 11297

Re: Raspberry Pi 3 A?

Is that a no to the BCM2838?
:( :( :( :( :( :( :( :(
by Gavinmc42
Fri Jul 22, 2016 7:40 am
Forum: General discussion
Topic: RAM disk for greater reliability
Replies: 7
Views: 1734

Re: RAM disk for greater reliability

piCore
by Gavinmc42
Fri Jul 22, 2016 7:38 am
Forum: General discussion
Topic: hide true history of camera port of RaspPiZero (link)
Replies: 5
Views: 815

Re: hide true history of camera port of RaspPiZero (link)

Yep Sensehat Zero.
Don't need the LEDS, just the same sensors and LoRa and GPS and ..and ...
by Gavinmc42
Fri Jul 22, 2016 7:34 am
Forum: General discussion
Topic: Raspberry Pi 3 A?
Replies: 89
Views: 11297

Re: Raspberry Pi 3 A?

There simply isn't going to be an octacore BCM2838 next year unless you, personally, are willing to pour between $10 million and $20 million into paying Broadcom to develop one as a rush job. Rush job? Everything but the cores stays the same? Not sure how big a market Broadcom has, but can they sit...
by Gavinmc42
Fri Jul 22, 2016 5:38 am
Forum: General discussion
Topic: hide true history of camera port of RaspPiZero (link)
Replies: 5
Views: 815

Re: hide true history of camera port of RaspPiZero (link)

Eben is a space cadet :P Ask for anything that will get a Pi into space. Saw some Marianas trench photos recently, water proof Pi's? Xprize Pi's? http://oceandiscovery.xprize.org/ Too late for this one? http://tricorder.xprize.org/ I'm just waiting for Dave to drop a glider with a Pi in it so it fli...
by Gavinmc42
Fri Jul 22, 2016 5:26 am
Forum: Beginners
Topic: i2c module
Replies: 4
Views: 886

Re: i2c module

The i2c on the 40way header pins 3,5 are on i2c1 not i2c0 unless you are trying to read a hat eeprom.
Then you will have to enable i2c0 on pins 27,28.
by Gavinmc42
Fri Jul 22, 2016 5:15 am
Forum: General discussion
Topic: Raspberry Pi 3 A?
Replies: 89
Views: 11297

Re: Raspberry Pi 3 A?

One of the reasons the Zero is so low cost is components are only on one side. Not going to get much lower in price now, $5 is a very low price, no profit in it. Surely we can forgive the RPF if they make a Quad core Zero with components on both sides we can allow them to double the price? $10 for a...
by Gavinmc42
Fri Jul 22, 2016 4:02 am
Forum: General discussion
Topic: Raspberry Pi 3 A?
Replies: 89
Views: 11297

Re: Raspberry Pi 3 A?

Re drones. From a pure cost point of view, use two Zero's, instead of Pi + Arduino. One for a camera running Linux, the other running bare metal code like Ultibo. Still need sensors and I/O. But a Quad core on a Zero size Ver 1.3 PCB would be fun. One core running Camera/Linux, the others doing nav,...
by Gavinmc42
Fri Jul 22, 2016 1:57 am
Forum: Bare metal, Assembly language
Topic: i2c0/i2c2
Replies: 0
Views: 467

i2c0/i2c2

Does anyone know how to use i2c0 in bare metal. Trying to get it going in Ultibo. I'm thinking bootloader.bin or start.elf assigns it to the GPU. Not a good idea to do this if camera or Pi display is plugged in due to conflicts. But for bare metal use, an extra i2c would be useful. i2c2 on the hdmi ...
by Gavinmc42
Wed Jul 20, 2016 11:44 am
Forum: General discussion
Topic: Raspberry Pi 3 A?
Replies: 89
Views: 11297

Re: Raspberry Pi 3 A?

Zero3 anyone? A Zero sized PCB with the quad core would make for an interesting computer vision platform. Or Drone CPU engine. Could use a Compute3 but they won't be cheap. Zero + Ethernet and no extra USB for IoT embedded. Hmm $4 hat could do that via SPI ENC28J60, scratch that. Octa core Zero, ple...
by Gavinmc42
Wed Jul 20, 2016 10:31 am
Forum: Camera board
Topic: PiKrellCam: motion vector detect + OSD web interface
Replies: 1453
Views: 308027

Re: PiKrellCam: motion vector detect + OSD web interface

Need help to fix my pikrellcam archive network drive settings. Have one Pi with a USB 1TB drive, 10.0.0.55, no problems archiving to the USB drive. Have another Pi, 10.0.0.54, currently archiving to it's SD card. How do I set up all the Pi's so the second Pi archives to the first one's USB drive? Ba...
by Gavinmc42
Tue Jul 19, 2016 12:45 am
Forum: Camera board
Topic: PiKrellCam: motion vector detect + OSD web interface
Replies: 1453
Views: 308027

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: 13277

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: 3133

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: 2712

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: 10933

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: 2712

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: 3100

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: 713

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: 2034

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: 2712

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: 2791

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: 1984

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: 2712

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: 2712

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...

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