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by DougieLawson
Thu Apr 19, 2018 5:26 pm
Forum: Troubleshooting
Topic: No global IPv6
Replies: 3
Views: 85

Re: No global IPv6

an FD00::/8 ULA isn't the same as a globally unique 2000:/3 address. The FD00:: block is only available within your LAN. You still need DHCPv6 (or radvd) running so that each LAN station can see the addresses for every other station.
by DougieLawson
Thu Apr 19, 2018 5:23 pm
Forum: AIY Projects
Topic: Unable to start AIY at boot
Replies: 11
Views: 255

Re: Unable to start AIY at boot

If it's a plain Raspbian SDCard then
sudo apt-get update
sudo apt-get -y dist-upgrade


Run on your RPi2B should get the kernel /boot/overlays & /lib/modules pieces to run on an RPi3B+.

If it's NOOBS forget it.
by DougieLawson
Thu Apr 19, 2018 9:23 am
Forum: Troubleshooting
Topic: Raspberry pi not booting from USB HDD drive
Replies: 10
Views: 203

Re: Raspberry pi not booting from USB HDD drive

==> safe_mode_gpio=4
and
==> max_usb_current=1
Neither of those settings are needed with current Raspbian 2018-03-13 or NOOBS 2.7.
by DougieLawson
Thu Apr 19, 2018 8:34 am
Forum: Troubleshooting
Topic: Apache fails to reach the Internet (curl, or whatever), name resolution error
Replies: 5
Views: 107

Re: Apache fails to reach the Internet (curl, or whatever), name resolution error

Start by checking your network is configured properly.

ip addr
ip route
ping -c3 $(ip route | awk '/default/ {print $3}')
ping -c3 8.8.8.8
ping -c3 google.fr
cat /etc/resolv.conf
by DougieLawson
Thu Apr 19, 2018 8:02 am
Forum: Beginners
Topic: install Apache2 ??? with Raspiand
Replies: 1
Views: 38

Re: install Apache2 ??? with Raspiand

Run sudo apt-get update again.

Then install apache2 with sudo apt-get install apache2 apache2-bin
by DougieLawson
Thu Apr 19, 2018 7:59 am
Forum: Troubleshooting
Topic: issues with i2c-tools and smbus modules
Replies: 6
Views: 104

Re: issues with i2c-tools and smbus modules

Sorry, I was wrong. i2c-dev gets stuffed into /etc/modules by sudo raspi-config.
by DougieLawson
Thu Apr 19, 2018 7:50 am
Forum: General discussion
Topic: Anybody do much with vcard files?
Replies: 7
Views: 407

Re: Anybody do much with vcard files?

I'm doing more stuff with MeCards rather than vCards as they're the format that gets encoded in a QR code. MECARD:N:Lawson, Douglas; NICKNAME:Dougie; NOTE:Mainframe Database Troubleshooter; TEL:+441234567890; EMAIL:dougie@example.com; BDAY:19630409; URL:http://raspberrypi.org; ADR:c/o Pi Towers, 30 ...
by DougieLawson
Thu Apr 19, 2018 7:19 am
Forum: Troubleshooting
Topic: Pi getting stuck at Login Screen
Replies: 3
Views: 97

Re: Pi getting stuck at Login Screen

Has your SDCard gone into read-only mode?
Try a fresh 8GB SDCard with Raspbian 2018-03-13 and a USB SDCard reader so you can inspect what's wrong with your broken system.
by DougieLawson
Wed Apr 18, 2018 10:05 pm
Forum: Advanced users
Topic: Powering multiple Pi Zero’s? (Again)
Replies: 4
Views: 109

Re: Powering multiple Pi Zero’s? (Again)

https://www.pidramble.com/wiki/benchmar ... onsumption gives you some numbers for each model in a cluster.
by DougieLawson
Wed Apr 18, 2018 9:03 pm
Forum: Beginners
Topic: Sharing sensor data
Replies: 12
Views: 185

Re: Sharing sensor data

Lots of Raspberry users tend to use MQTT rather than STOMP because it's easy and there's loads of library modules for python / c / c++ / javascript / Node.js / NodeRED / Ruby to work with MQTT. The python paho stuff makes subscribing or publishing to an MQTT topic extremely easy.
by DougieLawson
Wed Apr 18, 2018 8:58 pm
Forum: Troubleshooting
Topic: No global IPv6
Replies: 3
Views: 85

Re: No global IPv6

Have you enabled DHCPv6 on your Fritz!box?
Do you have a globally unique IPv6 unicast prefix (in the 2000::/3 subnet)?

https://en.avm.de/service/fritzbox/frit ... FRITZ-Box/
by DougieLawson
Wed Apr 18, 2018 8:39 pm
Forum: Beginners
Topic: pcmanfm
Replies: 7
Views: 171

Re: pcmanfm

Using a USB hub tends to make sense with the Zeros.
by DougieLawson
Wed Apr 18, 2018 4:04 pm
Forum: Troubleshooting
Topic: Raspberry pi not booting from USB HDD drive
Replies: 10
Views: 203

Re: Raspberry pi not booting from USB HDD drive

At the moment you've got bootdelay=nn, I did some stuff with the RPF folks to try to get my B+ booting from just a SDCard with bootcode.bin and a HDD in a carrier. Then replaced that carrier with a self-contained HDD. I've not revisited that project recently. Been too busy with my 3B+ and AIY among ...
by DougieLawson
Wed Apr 18, 2018 3:54 pm
Forum: Beginners
Topic: Which browser do you use ?
Replies: 8
Views: 162

Re: Which browser do you use ?

pi_lover wrote:
Wed Apr 18, 2018 2:43 pm
Problem is I cant browse Facebook at all with Chromium. Its terribly slow.
That's Google's new data protection and privacy option :D :D
by DougieLawson
Wed Apr 18, 2018 3:49 pm
Forum: Beginners
Topic: pcmanfm
Replies: 7
Views: 171

Re: pcmanfm

No. That's why my RPi with the 7" screen has a roll-up USB keyboard attached.

It's horrible, but just about usable
https://www.amazon.co.uk/BagNow-Flexibl ... B000V5IFCE
by DougieLawson
Wed Apr 18, 2018 3:35 pm
Forum: Graphics programming
Topic: Is hdmi_force_hotplug the same as manually turning on HDMI via tvservice?
Replies: 4
Views: 125

Re: Is hdmi_force_hotplug the same as manually turning on HDMI via tvservice?

The config.txt option is automatic at boot time. Most folks won't ever need it, 99.99% of HDMI display devices "just work" with a Raspberry with nothing special needed in /boot/config.txt or with the tvservice command.
by DougieLawson
Wed Apr 18, 2018 1:43 pm
Forum: Troubleshooting
Topic: issues with i2c-tools and smbus modules
Replies: 6
Views: 104

Re: issues with i2c-tools and smbus modules

joan wrote:
Wed Apr 18, 2018 12:19 pm
Is there an i2c-dev entry in /etc/modules?
You shouldn't need that if I2C is defined in /boot/config.txt (which is easy to do with sudo raspi-config).
by DougieLawson
Wed Apr 18, 2018 1:29 pm
Forum: Troubleshooting
Topic: Raspberry pi not booting from USB HDD drive
Replies: 10
Views: 203

Re: Raspberry pi not booting from USB HDD drive

SamRaspberry wrote:
Wed Apr 18, 2018 11:02 am
Is it feasable to get the bootcode.bin source, change it and recompile it to do this ?
Bootcode.bin is close source, proprietary software. To get changes you need to ask the RFP/RP(T)Ltd. folks to do it for you.

Create an issue at: https://github.com/raspberrypi/firmware/issues
by DougieLawson
Wed Apr 18, 2018 11:02 am
Forum: General discussion
Topic: Harware Add-on Suggestions
Replies: 7
Views: 252

Re: Harware Add-on Suggestions

bensimmo wrote:
Wed Apr 18, 2018 9:55 am
The new Google Voice Hat v2 (Bonnet they call it iirc) is a twin microphone hat in PiZero form factor, and a few other things like audio out and socket.
Why are you having such a struggle realising that it is NOT AVAILABLE to most of the World?
by DougieLawson
Wed Apr 18, 2018 8:28 am
Forum: Beginners
Topic: Location of application Evince
Replies: 6
Views: 260

Re: Location of application Evince

Roken wrote:
Tue Apr 17, 2018 7:17 pm
Most user installed programs will be in /usr/bin
Except for the ones in /usr/local/bin, /bin, /sbin, /usr/sbin & /usr/local/sbin
by DougieLawson
Wed Apr 18, 2018 8:27 am
Forum: Beginners
Topic: pcmanfm
Replies: 7
Views: 171

Re: pcmanfm

Have you been running matchbox-keyboard? That can cause PCManFM to run in a loop.
by DougieLawson
Wed Apr 18, 2018 8:17 am
Forum: Python
Topic: I'm trying to send information from a leap motion and servo motors to an HTTPServer that's the ip address of my PI
Replies: 4
Views: 151

Re: instant HELP needed

Ignore the advice you've been given and you'll never get your problem solved.
by DougieLawson
Tue Apr 17, 2018 7:11 pm
Forum: Automation, sensing and robotics
Topic: bluetooth proximity car
Replies: 9
Views: 225

Re: bluetooth proximity car

Change

Code: Select all

        if ruls = 0:
to

Code: Select all

        if ruls == 0:
by DougieLawson
Tue Apr 17, 2018 7:02 pm
Forum: Off topic discussion
Topic: Questions related(non) to Raspberry PI
Replies: 13
Views: 2372

Re: Questions related(non) to Raspberry PI

Banggood usually takes a couple of weeks to the UK.

DS18B20, BMP085, BMP180, BME280 and DHT22 are popular temp sensors. Some use 1-wire, some use I2C some use SPI.

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