In some cases saving as much power as possible is very attractive. Unfortunately I won’t have any real figures, but I have posted the links of others who have done the changes. 1. Run your Pi headless? Disable HDMI! This is reported to save about 20mA of power. sudo /opt/vc/bin/tvservice -o Note: Don’t forget …
Category: Raspbian
Jan 09
Raspbian: VIM Syntax Highlighting
I always install VIM, it’s easier to use than VI, however for some reason in Raspbian, syntax highlighting is not enabled by default. It’s such a useful feature I don’t know who wouldn’t want it on. Anyway, to enable it: sudo vim /etc/vim/vimrc Remove the quotes from the line: “syntax on Write and Quit, done!
Jan 03
Raspbian: Going on a Diet (Remove X11)
I recently set up a pi to act as a dedicated headless server with a default install of Raspbian (from NOOBS). It is solely to serve information and a couple services. In that case, there are a lot of things that aren’t needed for a headless server. One of those things (and the biggest) is …
Dec 21
Electronics Projects: VFD Informatron 2000
After looking at various very cool and vary old display technologies on eBay, I ran across a 4 line dot matrix VFD display. It was one of 4 left, so I decided to order it and build a project similar to this one that an IRC friend linked me to: http://www.pyrofersprojects.com/blog/vfd-clock-with-snmp-and-ntp/. I originally was going …
Dec 21
Raspbian: Run a Program at Startup
There are many directions out there that don’t work on Raspbian. Specifically the “upstart” scripts, as Raspbian doesn’t come with upstart, and will mess things up greatly if you install it. Raspbian uses init.d. It’s fairly simple to get things going since a nice script was provided at the link below, mirrored here. Create script …
Dec 21
Raspbian: Wifi Going to Sleep
It seemed like I couldn’t contact my Pi after a while (and my SSH session would end seemingly for no reason). I would start a ping and it would time out for the first few times before it would start responding. At first I thought the Pi itself was, or the USB ports were going …