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by coding
Tue Dec 25, 2018 8:59 pm
Forum: Raspbian
Topic: STICKY: Jessie (now defunct and replaced with Stretch) Q&A
Replies: 396
Views: 192862

Re: STICKY: Jessie (now defunct and replaced with Stretch) Q&A

In the thread title it says Jessie is "now defunct". Does that mean existing installations could seize to function after updating via " apt full-upgrade"? I run Dnsmasq on a Jessie Pi 1 B+ and am getting more and more strange errors after updates and reboots (which I do every few months). Today afte...
by coding
Thu Jun 16, 2016 10:15 am
Forum: Beginners
Topic: Connecting a photo diode and measuring light's frequencies?
Replies: 5
Views: 1148

Re: Connecting a photo diode and measuring light's frequenci

I understand, thanks. I think I have a BPW34 photo diode lying around here somewhere. But I believe I can't directly connect it as simple as the IR receiver. I should probably give up on this project as I have no electrical knowledge. I read about a 10K resistor I'd probably have to use, maybe solde...
by coding
Thu Jun 16, 2016 9:05 am
Forum: Beginners
Topic: Connecting a photo diode and measuring light's frequencies?
Replies: 5
Views: 1148

Re: Connecting a photo diode and measuring light's frequenci

I now connected an IR sensor as shown here: http://learn.adafruit.com/assets/5909

Where do I start from here? Can you give me any links to tutorials on how to save and analyze the incoming electric current?
by coding
Wed Jun 15, 2016 4:54 pm
Forum: Beginners
Topic: Connecting a photo diode and measuring light's frequencies?
Replies: 5
Views: 1148

Connecting a photo diode and measuring light's frequencies?

I think maybe it could be possible to use a Raspberry Pi and a photo diode to measure the frequencies of light sources. To hold the photo diode near to a incandescent bulb and then get the value 100 Hz or 120 Hz (depending on country). It is probably very easy for an experienced GPIO user, but I don...
by coding
Sun Apr 24, 2016 2:59 pm
Forum: General discussion
Topic: Controlling LAN LEDs individually
Replies: 39
Views: 24095

Re: Controlling LAN LEDs individually

Do you know how to install libusb-0.1-4 in Arch Linux? Because there is only libusb 1. Libusb's homepage does not list the release 0.1.

Any way to rewrite the code to work with libusb-1?

Edit: this is a solution:

Code: Select all

pacman -S libusb-compat
It's version 0.1.5-1 and works. Could compile and execute.
by coding
Tue Apr 12, 2016 4:33 pm
Forum: Advanced users
Topic: Linux kernel is now 4.4
Replies: 114
Views: 68125

Re: Linux kernel is now 4.4

Just curious, because I believe by default Kernel 4.4 does include the open source VC4 driver: Does that mean that driver is now active by default?
by coding
Wed Apr 06, 2016 7:19 am
Forum: Troubleshooting
Topic: Some recent update must have killed my vsftpd
Replies: 4
Views: 1791

Re: Some recent update must have killed my vsftpd

Same message in /etc/var/syslog: Apr 6 08:56:40 raspberrypi systemd[1]: Starting vsftpd FTP server... Apr 6 08:56:40 raspberrypi systemd[1]: Started vsftpd FTP server. Apr 6 08:56:40 raspberrypi systemd[1]: vsftpd.service: main process exited, code=exited, status=2/INVALIDARGUMENT Apr 6 08:56:40 ras...
by coding
Tue Apr 05, 2016 11:39 am
Forum: Troubleshooting
Topic: Some recent update must have killed my vsftpd
Replies: 4
Views: 1791

Re: Some recent update must have killed my vsftpd

systemctl -l status vsftpd.service ● vsftpd.service - vsftpd FTP server Loaded: loaded (/lib/systemd/system/vsftpd.service; enabled) Active: failed (Result: exit-code) since Tue 2016-04-05 10:33:47 CEST; 2h 57min ago Process: 1950 ExecStart=/usr/sbin/vsftpd /etc/vsftpd.conf (code=exited, status=2) ...
by coding
Tue Apr 05, 2016 8:40 am
Forum: Troubleshooting
Topic: Some recent update must have killed my vsftpd
Replies: 4
Views: 1791

Some recent update must have killed my vsftpd

Some recent apt-get update, which I automatically run every day, must have killed my vsftpd. The server is closed and won't start anymore. I don't know how to troubleshoot this. I did not change anything, and my (working-until-now) /etc/vsftpd.conf is still there. sudo service vsftpd status ● vsftpd...
by coding
Thu Feb 04, 2016 3:58 pm
Forum: Java
Topic: Processing 3 is running for the first time on a Raspberry Pi
Replies: 35
Views: 19446

Re: Processing 3 is running for the first time on a Raspberr

I am currently trying the latest image, which seems to be from Dec 20 2015. it crashes on the Pi 2 when you smoothly move larger areas of the screen. Like smooth-scrolling web pages, dragging Windows across the desktop... Do you know of this bug? And: Are there no daily builds anymore? Is it safe to...
by coding
Wed Jan 20, 2016 5:24 pm
Forum: Beginners
Topic: How to properly use the new Raspberry Pi open source video d
Replies: 11
Views: 2384

How to properly use the new Raspberry Pi open source video d

Some days ago I read news about a new Raspberry Pi open source video driver being officially integrated into the Linux Kernel. I found the website http://dri.freedesktop.org/wiki/VC4/ which links to another site with ready-to-use Raspbian images which use the new driver: http://sukzessiv.net/~gohai/...
by coding
Fri Dec 25, 2015 1:10 pm
Forum: Beginners
Topic: Mount iPhone (iPad...) properly in command line
Replies: 0
Views: 1082

Mount iPhone (iPad...) properly in command line

I try to connect iPhones and iPads to my Raspberry Pis. I installed ifuse: sudo apt-get install ifuse I mount the iPhone with ifuse: mkdir iphone ifuse iphone No error messages so far. Then I list my home directory, but the iphone directory now has this weird list entry: ls -l ls: cannot access ipho...
by coding
Sun Dec 13, 2015 4:05 pm
Forum: Troubleshooting
Topic: Can't get program colortest with apt-get
Replies: 1
Views: 336

Can't get program colortest with apt-get

I have trouble installing the program "colortest". When I do sudo apt-get install colortest , the program is found and seemingly installed, but it seems the executable file is not installed. I can't run colortest from the command line. Not even the manpage is there. I search for the file with find /...
by coding
Sun Nov 29, 2015 7:16 pm
Forum: Raspbian
Topic: Dnsmasq won't work anymore after a reboot
Replies: 9
Views: 3192

Re: Dnsmasq won't work anymore after a reboot

No, I don't see any of those lines in the dmesg output.
by coding
Sun Nov 29, 2015 7:10 am
Forum: Raspbian
Topic: Dnsmasq won't work anymore after a reboot
Replies: 9
Views: 3192

Re: Dnsmasq won't work anymore after a reboot

You're probably right.
I now created a root cronjob which restarts Dnsmasq 30 seconds after reboots to work around the problem.
by coding
Sat Nov 28, 2015 9:40 am
Forum: Raspbian
Topic: Dnsmasq won't work anymore after a reboot
Replies: 9
Views: 3192

Re: Dnsmasq won't work anymore after a reboot

ip addr show says there is an IPv6 address with prefix fe80::/64. A quick research told me this should be the equivalent of 169.254. in IPv4. So your assumption might be true: During system start Dnsmasq may think that 169.254. is the local network, and applies its rules (block non-local network re...
by coding
Fri Nov 27, 2015 11:44 pm
Forum: Raspbian
Topic: Dnsmasq won't work anymore after a reboot
Replies: 9
Views: 3192

Re: Dnsmasq won't work anymore after a reboot

I didn't touch /etc/network/interfaces. I put these two lines into /etc/dhcp.conf: static ip_address=192.168.1.10/24 static routers=192.168.1.1 I can reach the Pi at IP address 192.168.1.10 via SSH after a reboot. Then I can restart Dnsmasq. Not sure if the Pi somehow gets two IP addresses, and Dnsm...
by coding
Fri Nov 27, 2015 6:52 pm
Forum: Raspbian
Topic: Dnsmasq won't work anymore after a reboot
Replies: 9
Views: 3192

Dnsmasq won't work anymore after a reboot

I run Dnsmasq to respond to local network DNS queries. Recently Dnsmasq has a problem with reboots. Whenever I reboot, DNS queries are not served anymore. I found this in Dnsmasq's log file: dnsmasq[498]: Ignoring query from non-local network That line is the only difference. When I restart Dnsmasq ...
by coding
Fri Nov 06, 2015 7:05 pm
Forum: General discussion
Topic: Controlling LAN LEDs individually
Replies: 39
Views: 24095

Re: Controlling LAN LEDs individually

Wow, I just tried this program too, it works for the Pi 2 and is fantastic. It's a must have for bedroom Pis. This thread is heavily underrated, the attachment should have thousands of downloads. The Raspberry Pi foundation should include such functionality in their raspi-config setup program. Many ...
by coding
Fri Nov 06, 2015 12:35 pm
Forum: General discussion
Topic: Controlling LAN LEDs individually
Replies: 39
Views: 24095

Re: Controlling LAN LEDs individually

Can someone who is a programmer and has a good reputation on this forum please confirm that the source code is safe to use? I don't understand the source code, so I wouldn't know what I compile and how it could affect my Pi's security. But if it works and is safe, I think it should become more known...
by coding
Sun Nov 01, 2015 8:29 am
Forum: Raspbian
Topic: Copy&Paste with RDP to XRDP doesn't work
Replies: 9
Views: 2859

Re: Copy&Paste with RDP to XRDP doesn't work

Excuse me, but how can PuTTY be the answer to this question? It is a very tedious workaround. After all, we use RDP to see a graphical user interface, not a text console, right? So please, is anyone else interested in a real solution? PuTTY is a great tool but has nothing to do with RDP. Can anyone ...
by coding
Sun Oct 18, 2015 6:08 pm
Forum: General discussion
Topic: Controlling LAN LEDs individually
Replies: 39
Views: 24095

Re: Controlling LAN LEDs individually

Hello,

I would like to disable the LAN LEDs of my Raspberry Pi 2.
I noticed this thread is old and it was created when the Raspberry Pi 2 did not yet exist.
Is this the only method to disable the LAN LEDs or is there a simpler method especially for the Raspberry Pi 2?
by coding
Sun Oct 18, 2015 9:58 am
Forum: General discussion
Topic: /etc/network/interfaces changed,weird 2 LAN IPs instead of 1
Replies: 71
Views: 110489

Re: /etc/network/interfaces changed,weird 2 LAN IPs instead

I did not know what the "/24" part of the IP was about. Google said /24 is a network mask of 255.255.255.0.
by coding
Sat Oct 10, 2015 8:47 pm
Forum: General discussion
Topic: Guide: Chromium 51 on Raspbian Jessie
Replies: 951
Views: 631238

Re: Guide: Chromium 45 on Raspbian Jessie

The older Chromium on Wheezy probably also didn't have hardware acceleration, its software. No, believe me, the old Chromium in Wheezy has hardware acceleration everywhere. I just tried it a few days ago on a Raspberry Pi 2. It is not just some lines of text in flags:gpu tab - you can feel the spee...
by coding
Sat Oct 10, 2015 2:48 pm
Forum: General discussion
Topic: Guide: Chromium 51 on Raspbian Jessie
Replies: 951
Views: 631238

Re: Guide: Chromium 45 on Raspbian Jessie

Did you manage to enable hardware acceleration?

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