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by RaTTuS
Tue Jul 17, 2018 8:45 am
Forum: Beginners
Topic: BOOT Messages ?
Replies: 1
Views: 38

Re: BOOT Messages ?

dmesg
but also check out .log files in /var/log
by RaTTuS
Tue Jul 17, 2018 7:56 am
Forum: General discussion
Topic: How to change the core file size of raspberry pi3
Replies: 6
Views: 138

Re: How to change the core file size of raspberry pi3

however with the "Too many open files" error
what are you doing to create this i.e. are you opening loads of files and not closing them ?
when does this occur ?
etc...
by RaTTuS
Mon Jul 16, 2018 1:42 pm
Forum: Troubleshooting
Topic: crontab -e format
Replies: 6
Views: 147

Re: crontab -e format

or ...

Code: Select all

0 6,10,14,18,22 * * * /home/pi/zwgarden2/autofill1.py && /home/pi/zwgarden2/autofill2.py && /home/pi/zwgarden2/autofill3.py 
full paths to everything [including python if you want it]
but have #! shebangs in the .py script to point to the correct oine anyway
by RaTTuS
Mon Jul 16, 2018 11:13 am
Forum: Troubleshooting
Topic: 'Extending' USB - not working
Replies: 1
Views: 45

Re: 'Extending' USB - not working

you will need to connect the ground and power to the socket also if I understand what you have done
by RaTTuS
Mon Jul 16, 2018 7:00 am
Forum: Add-ons
Topic: Can I switch one Pi off/on with another?
Replies: 11
Views: 237

Re: Can I switch one Pi off/on with another?

The Watchdog should work fine as it's hardware inside the SOC
so it's always going to reset unless it is told not to - and the ARM is the thing that does the telling - I cannot find a good post to show how it's done ATM,
I'll see if I can fin one and get it working on my Pi3 b+ if I get time
by RaTTuS
Fri Jul 13, 2018 10:12 am
Forum: Add-ons
Topic: Can I switch one Pi off/on with another?
Replies: 11
Views: 237

Re: Can I switch one Pi off/on with another?

use a watchdog on that RPi so it resets itself
by RaTTuS
Fri Jul 13, 2018 7:32 am
Forum: General discussion
Topic: Need help with camera not supported in camera libraries
Replies: 6
Views: 194

Re: Need help with camera not supported in camera libraries

jamesh wrote:
Tue Jul 10, 2018 4:11 pm
Something like this?

https://www.ebay.co.uk/itm/USB-2-0-Type ... SwUxhbOifj
they wont work - please edit this post
by RaTTuS
Thu Jul 12, 2018 8:16 am
Forum: C/C++
Topic: Autorun C program on Raspberry Pi
Replies: 5
Views: 166

Re: Autorun C program on Raspberry Pi

why are you using wheezy ?
it make more sense to make a new Stretch version but
viewtopic.php?t=7192
will help
by RaTTuS
Fri Jul 06, 2018 1:09 pm
Forum: Troubleshooting
Topic: Raspbian fails to load
Replies: 3
Views: 111

Re: Raspbian fails to load

flash a new copy of raspbian from https://www.raspberrypi.org/downloads/raspbian/
onto the sccard and boot that
by RaTTuS
Thu Jul 05, 2018 1:07 pm
Forum: Beginners
Topic: Updating or Replacing?
Replies: 3
Views: 153

Re: Updating or Replacing?

take a new sdcard - load latest raspbain lite onto it
put it into the machine and boot it
then add all the stuff you need to make it work
by RaTTuS
Thu Jul 05, 2018 12:27 pm
Forum: General discussion
Topic: Proposal: Raspberry Pi Zero W with 2GB / 4GB embedded
Replies: 28
Views: 770

Re: Proposal: Raspberry Pi Zero W with 2GB / 4GB embedded

I am not sure that 2GB/4GB microSD are not available on market. They can be missing in the local store selling phones and TVs. 4Gb is the lowest you can get on aliexpress https://www.aliexpress.com/item/Class10-128GB-64GB-SDXC-32GB-Memory-Card-SDHC-16GB-8GB-4GB-micro-sd-card-TF-card/32845438931.htm...
by RaTTuS
Thu Jul 05, 2018 8:10 am
Forum: Compute Module
Topic: What would be the next step up from CM3?
Replies: 26
Views: 1112

Re: What would be the next step up from CM3?

fruitoftheloom wrote:
Thu Jul 05, 2018 7:35 am
...
The BCM283x SoC are sourced from Broadcom, you would need to ask them if they are willing to sell to you, though considering HardKernel an established company only managed to purchase 500 would not hold your breath:...
500 would be the size of a sample batch for a potential project IMO
by RaTTuS
Wed Jul 04, 2018 2:59 pm
Forum: Beginners
Topic: external HDD does this need to be in USB 3 or in USB 2
Replies: 4
Views: 125

Re: external HDD does this need to be in USB 3 or in USB 2

either will work {YMMV] post a link to any you are wanting to and we'll possibly say for sure
by RaTTuS
Wed Jul 04, 2018 1:49 pm
Forum: Camera board
Topic: camera v2.1in the dim light
Replies: 1
Views: 123

Re: camera v2.1in the dim light

use the NOIR version and flood the area with and IR lamp
by RaTTuS
Tue Jul 03, 2018 2:56 pm
Forum: Raspbian
Topic: Crontab configuration
Replies: 11
Views: 257

Re: Crontab configuration

edit the users crontab with
crontab -e
edit the root crontab with
sudo crontab -e
by RaTTuS
Tue Jul 03, 2018 2:46 pm
Forum: Raspbian
Topic: Crontab configuration
Replies: 11
Views: 257

Re: Crontab configuration

mine cat /etc/crontab # /etc/crontab: system-wide crontab # Unlike any other crontab you don't have to run the `crontab' # command to install the new version when you edit this file # and files in /etc/cron.d. These files also have username fields, # that none of the other crontabs do. SHELL=/bin/sh...
by RaTTuS
Tue Jul 03, 2018 10:53 am
Forum: Raspbian
Topic: Crontab configuration
Replies: 11
Views: 257

Re: Crontab configuration

a lot of things....

what files are you editing ?
is this the main system cron i.e. /etc/crontab ? if so why have you edited it

what wrong with the right way if using cron [sic]
by RaTTuS
Thu Jun 28, 2018 1:05 pm
Forum: Raspbian
Topic: Raspbian bloated
Replies: 32
Views: 1004

Re: Raspbian bloated

Milliways wrote:
Thu Jun 28, 2018 1:00 pm
...
PS The first computer I used with a HDD had a 20 MB disk (for the younger members that is NOT a typo) - before that I couldn't imagine why one would want a HDD when you could get 1MB on a 8" floppy.
my first HD was 50MB it was RL encoded it also cost me £500
by RaTTuS
Wed Jun 27, 2018 3:05 pm
Forum: Beginners
Topic: Can't seem to get the IMG file on the SD card
Replies: 19
Views: 335

Re: Can't seem to get the IMG file on the SD card

you dont need to format it before using etcher also
by RaTTuS
Wed Jun 27, 2018 2:25 pm
Forum: Java
Topic: WiringPi 2.46 not working
Replies: 2
Views: 187

Re: WiringPi 2.46 not working

basically don't static link
pi4j.linking=dynamic

old versions will stop working on newer machines

this is not Gordon's problem but whoever makes the library
by RaTTuS
Tue Jun 26, 2018 12:52 pm
Forum: Troubleshooting
Topic: GPIO pins are dead?
Replies: 2
Views: 111

Re: GPIO pins are dead?

post your circuit diagram of all the stuff you have attached.
if you put in 5V on a GPIO or more mA than you should you will kill things
by RaTTuS
Thu Jun 21, 2018 2:55 pm
Forum: Troubleshooting
Topic: OTP bit confirmation "anomaly"?
Replies: 8
Views: 223

Re: OTP bit confirmation "anomaly"?

That would imply old firmware on the VC4, but you said you were up to date,so not exactly sure what might be going on. You could try an rpi-update, if you happy with the bleeding edge. Or just copy the /boot/start*.elf files from the machine that works. At your own risk though. See my post above: i...

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