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by electronicsguy
Mon Apr 27, 2015 10:37 pm
Forum: Camera board
Topic: Shutter Speed Limit
Replies: 27
Views: 4628

Re: Shutter Speed Limit

I had a play last night with PLL settings. Even cranking the divider up from 3 to 4 (in theory would give 8secs) fails with corrupted images. We're already at the maximum line width and height, so I don't see a way of increasing the shutter speed limit beyond 6secs, and I don't have the tools to lo...
by electronicsguy
Mon Apr 27, 2015 10:33 pm
Forum: Camera board
Topic: Yet Another Defective Camera?
Replies: 17
Views: 1782

Re: Yet Another Defective Camera?

check the power supply again. remove and re-insert the camera cable at both ends. also try a different cable if you have one.
by electronicsguy
Mon Apr 27, 2015 10:17 pm
Forum: Raspbian
Topic: remote backup, local restore
Replies: 7
Views: 1396

Re: remote backup, local restore

I want to create a backup every so often so if I ever have to reimage my pi, I have my own image. I tried: ssh user@ip "sudo dd if=/dev/root | gzip -1 -" | dd of=20150425_image.gz The I gunzipped on my local machine and wrote it to another card. It won't mount. [ 4057.937003] EXT4-fs error (device ...
by electronicsguy
Mon Apr 27, 2015 12:51 am
Forum: Beginners
Topic: When is wiringpi required?
Replies: 4
Views: 1338

Re: When is wiringpi required?

Thanks for the reply Andy. I'll be programming in Python for most of the time, but I want to use GPIO with C too, in a few projects. I saw that the adafruit oled examples use C alongwith a bcmxxxx library that is built from source, in order to interface over SPI/I2C. No use of wiringpi. So if I do w...
by electronicsguy
Mon Apr 27, 2015 12:14 am
Forum: Beginners
Topic: When is wiringpi required?
Replies: 4
Views: 1338

When is wiringpi required?

Hello,
I have used the GPIO on my RPI B+ and some modules like piglow and adaruit oled. All programmed using python and it's gpio module. I am wondering when is the 'wiringpi' required? Its not installed by default in my raspbian distro (no 'gpio' utility.) But I can use all the GPIO pins.
by electronicsguy
Sun Apr 26, 2015 8:00 pm
Forum: Beginners
Topic: Pi Glow - HELP!!!
Replies: 17
Views: 1402

Re: Pi Glow - HELP!!!

start with the basic pimoroni example instead. I have the steps outlined here: https://electronicsguy.wordpress.com/2015/03/18/experiments-with-piglow-%f0%9f%8d-%b0%e2%9c%a8/ ask if you need any more help. Thanks :) I have followed these instructions but what code am I meant to download and how? Th...
by electronicsguy
Sun Apr 26, 2015 5:08 am
Forum: Camera board
Topic: RPi Cam Web Interface
Replies: 5008
Views: 1276050

Re: RPi Cam Web Interface

Is there any log (apart from the /var/log/apache2 that'll tell me what operations were last performed when someone connected... like how long did they view the images, or if any files were downloaded?
by electronicsguy
Sun Apr 26, 2015 3:06 am
Forum: General discussion
Topic: 2 free rasPi2b
Replies: 20
Views: 2283

Re: 2 free rasPi2b

Whenever someone says "I build computers", I take it with a pinch of salt because many a times, they have no idea what they are talking about. - either you buy off the shelf parts and assemble desktop PC hardware. - or you are part of a technical team that designs some small part of the whole. apart...
by electronicsguy
Sun Apr 26, 2015 2:53 am
Forum: Off topic discussion
Topic: Programming a TI Launchpad Microcontroller
Replies: 11
Views: 1903

Re: Programming a TI Launchpad Microcontroller

rpiswag wrote:I just ordered a TEXAS INSTRUMENTS MSP-EXP432P401R DEV BOARD and I would like to program it from my pi 2B instead of my main computer. How do I do this?
http://bit.ly/1IbAU7U
by electronicsguy
Sun Apr 26, 2015 2:49 am
Forum: General discussion
Topic: Video Core Source – 1 Year On
Replies: 47
Views: 15358

Re: Video Core Source – 1 Year On

As for other stuff, it does beg the question, why were people clamouring for release and full openness when only a few are using the stuff that actually has been released.... Hi James, I don't know much about the gpu or arm in general, but am trying to learn. Has it been open-sourced in a way that ...
by electronicsguy
Sat Apr 25, 2015 7:13 pm
Forum: Beginners
Topic: Pi Glow - HELP!!!
Replies: 17
Views: 1402

Re: Pi Glow - HELP!!!

start with the basic pimoroni example instead. I have the steps outlined here: https://electronicsguy.wordpress.com/20 ... %e2%9c%a8/

ask if you need any more help.
by electronicsguy
Fri Apr 24, 2015 1:23 am
Forum: Beginners
Topic: My project: Backpi - easy RPi backups
Replies: 0
Views: 244

My project: Backpi - easy RPi backups

Hello all, I wanted to share my latest project called Backpi. I wrote this to simplify taking backup of my RPi data. It uses whiptail for interactive menus, but can also be run in a command-line only mode enabling automation. Please have a look at it and tell me what you think. All comments, request...
by electronicsguy
Tue Apr 21, 2015 8:51 pm
Forum: Advanced users
Topic: Under-voltage warnings
Replies: 187
Views: 328051

Re: Under-voltage warnings

cool. Does any 2m USB cable work, or a specific, low-cost one?
by electronicsguy
Tue Apr 21, 2015 7:29 am
Forum: Advanced users
Topic: Extending the RAM of RPB as a DIY project
Replies: 12
Views: 8082

Re: Extending the RAM of RPB as a DIY project

What is the maximum amount of RAM that is possible with the BCM2836 SoC? I believe the BCM2836 has four cores. So I trust four cores, must at least provide close enough performance to a dual core X86/64 processor. I would appreciate your comments and views. In the real world, performance is not dic...
by electronicsguy
Tue Apr 21, 2015 7:21 am
Forum: Advanced users
Topic: Refrigeration Controls
Replies: 5
Views: 1603

Re: Refrigeration Controls

I haven't used it personally yet, but you could check out: https://www.temboo.com/
by electronicsguy
Sun Apr 19, 2015 12:03 am
Forum: Beginners
Topic: Cant make LED working with RPi.GPIO with python
Replies: 9
Views: 869

Re: Cant make LED working with RPi.GPIO with python

you have the resistor connected in series right? because you said the short leg is connected to GND and the long one to the GPIO. if so, you've blown the LED.
by electronicsguy
Sat Apr 18, 2015 12:19 am
Forum: Camera board
Topic: RPi Cam Web Interface
Replies: 5008
Views: 1276050

Re: RPi Cam Web Interface

Hi Silvan and other devs,
I just install this and was able to use it instantly. Congratulations on this excellent work!
by electronicsguy
Fri Apr 17, 2015 7:29 am
Forum: Beginners
Topic: Most friendly user OS for Rpi 2
Replies: 14
Views: 1860

Re: Most friendly user OS for Rpi 2

I just helped to install it (on new machines or on machines running windows). If you buy a computer it usually comes with Windows (or MacOS) installed. That''s the most important reason why they have such a big market share. The second is ignorance. The third is that companies selling hardware ofte...
by electronicsguy
Fri Apr 17, 2015 7:06 am
Forum: Beginners
Topic: Most friendly user OS for Rpi 2
Replies: 14
Views: 1860

Re: Most friendly user OS for Rpi 2

This is nonsense (espcially "linux in general"). I've successfully helped a number of very naive computer users to migrate to Ubuntu and they are much happier with it. Sure you have. But why did you have to? If it was nonsense, they could have picked it up easily on their own. Plus, overall consume...
by electronicsguy
Fri Apr 17, 2015 12:50 am
Forum: Advanced users
Topic: Under-voltage warnings
Replies: 187
Views: 328051

Re: Under-voltage warnings

I wrote this quick python script to view the power led status over ssh, may be useful as a template for others: Using Mike's code, I made a script which uses ANSI control codes to constantly display the LED status in the top right corner. Could someone test it out with the undervoltage message? I d...
by electronicsguy
Thu Apr 16, 2015 6:06 pm
Forum: Beginners
Topic: Most friendly user OS for Rpi 2
Replies: 14
Views: 1860

Re: Most friendly user OS for Rpi 2

That OS ain't friendly user at all for me.... :( Is it possible to install 2 OS on the same SD card ? Like a dual boot... Because to emulate the N64 I need to install recalboxOS but with that OS i can't watch movie (i think ... ?) The RPi, and well linux in general, is not meant to compete with OS ...
by electronicsguy
Wed Apr 15, 2015 4:58 am
Forum: Advanced users
Topic: How to partition copy SD card - NOOBS
Replies: 1
Views: 1187

Re: How to partition copy SD card - NOOBS

All you need is: 1st fat32 partition which has bootcode.bin, which would load start.elf in that partition (or recovery.elf in case of noosbs). noobs now requires a settings partition as partition #3. It reads that to see if any OS has already been installed, and if so, does a soft-reset and loads th...
by electronicsguy
Wed Apr 15, 2015 3:37 am
Forum: Beginners
Topic: NOOBS for RPi B+ and Pi 2
Replies: 8
Views: 776

Re: NOOBS for RPi B+ and Pi 2

+1 to what drgeoff said.. the RPi is for learning. and you cannot learn unless you fall, sometimes often. you'll be better off with something else if you're so busy.
by electronicsguy
Sun Apr 12, 2015 8:31 pm
Forum: Troubleshooting
Topic: max_usb_current=1 ineffective on RPi 2 B
Replies: 30
Views: 36443

Re: max_usb_current=1 ineffective on RPi 2 B

@mahjongg: When the option of max usb is set, is there a fuse per usb port? So if the power supply can support it, is it 1.2amps per USB port, or in total?
by electronicsguy
Sat Apr 11, 2015 10:45 pm
Forum: Troubleshooting
Topic: max_usb_current=1 ineffective on RPi 2 B
Replies: 30
Views: 36443

Re: max_usb_current=1 ineffective on RPi 2 B

Did you ever find a solution to this? btw, I don't think you need both lines, if you've updated your installation. Just the "max_usb_current" should be sufficient. I was able to power and run a WD 2TB my passport drive directly from the B+ pi's usb ports. Have you tried connecting a portable harddri...

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