{"id":37,"date":"2013-12-15T19:30:20","date_gmt":"2013-12-15T18:30:20","guid":{"rendered":"http:\/\/npham.dk\/?p=37"},"modified":"2014-01-03T11:43:27","modified_gmt":"2014-01-03T10:43:27","slug":"raspberry-pi-ir-remote","status":"publish","type":"post","link":"https:\/\/npham.dk\/?p=37","title":{"rendered":"Raspberry Pi IR remote"},"content":{"rendered":"

I wanted to use the Raspberry Pi as a remote control for my TV, so I searched the internet and found a pretty good guide by Alex Bain.<\/a>
\nSo all credits goes to him!<\/p>\n

I then created a TV-guide webapp, where I could click on a channel to switch to that channel on the TV.
\nIt’s webbased but I haven’t exposed it to the internet, so it only works when I’m home \ud83d\ude42<\/p>\n

Images of the final assembly<\/h3>\n

\"IMG_0867\"<\/a>\"IMG_0868\"<\/a>
\n\"IMG_0869\"<\/a>\"IMG_0870\"<\/a>
\n(Ignore the circuit connected with the green and red wire, its a RF tranmitter, which I will post about later)<\/em><\/p>\n

Video demo<\/h3>\n
\nhttp:\/\/npham.dk\/wp-content\/uploads\/2013\/12\/RPI-IR-Demo1.mp4<\/a><\/video><\/div>\n

Installing the distro<\/h3>\n

I had a old spare 1GB SD card laying around, so first thing I did was install\u00a0Moebius<\/a>\u00a0which is a very small Raspberry Pi distro, that fits the 1GB nicely \ud83d\ude42
\nI don’t know what class the card is, but I don’t think it really matter, as performance is not a issue here.<\/p>\n

To install the image to a SD-card, I followed the guide from RPi Easy SD Card Setup<\/a>. (I used the program Pi-Writer.)<\/p>\n

Creating IR transmitter<\/h3>\n

I made the electronic from Alex’ schematic<\/a>, and soldered the components on a stripboard.
\nI bought my parts from my local electronics store:
\n2 x IR-LED
\n<\/a>2 x LED holder
\n<\/a>1 x IR receiver<\/a>
\n1 x NPN transistor
\n<\/a>1 x 10 k\u03a9\u00a0resistor
\n<\/a>1 x 2×13 pin connector
\n<\/a>1 x stripboard<\/a><\/p>\n

Installing LIRC<\/h3>\n

Follow the guide here<\/a>.<\/p>\n

Installing a web server<\/h3>\n

Just for good measure reboot the Raspberry Pi<\/p>\n

sudo reboot<\/pre>\n
When it’s back up and running, we now install the webserver and PHP<\/p>\n
sudo apt-get -y install lighttpd\r\nsudo apt-get -y install php5-common php5-cgi php5\r\n\r\n#enable fastcgi module included with lighttpd\r\nsudo lighttpd-enable-mod fastcgi fastcgi-php\r\n\r\n#The following restarts the webserver\r\nsudo service lighttpd force-reload<\/pre>\n
Now we need to setup some permissions for the webserver.<\/p>\n
#change the owner of \/var\/www to www-data (user and group)\r\nsudo chown www-data:www-data \/var\/www\r\n\r\n#gives user and group read\/write\/execute rights to \/var\/www\r\nsudo chmod 775 \/var\/www\r\n\r\n#adds the user pi to the group www-data\r\nsudo usermod -a -G www-data pi<\/pre>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
I wanted to use the Raspberry Pi as a remote control for my TV, so I searched the internet and found a pretty good guide by Alex Bain. So all credits goes to him! I then created a TV-guide webapp, where I could click on a channel to switch to that channel on the TV. […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[7,6,9],"_links":{"self":[{"href":"https:\/\/npham.dk\/index.php?rest_route=\/wp\/v2\/posts\/37"}],"collection":[{"href":"https:\/\/npham.dk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/npham.dk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/npham.dk\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/npham.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=37"}],"version-history":[{"count":44,"href":"https:\/\/npham.dk\/index.php?rest_route=\/wp\/v2\/posts\/37\/revisions"}],"predecessor-version":[{"id":107,"href":"https:\/\/npham.dk\/index.php?rest_route=\/wp\/v2\/posts\/37\/revisions\/107"}],"wp:attachment":[{"href":"https:\/\/npham.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=37"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/npham.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=37"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/npham.dk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=37"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}