View source for UP-FM Transmitter


==DESCRIPTION==

A Raspberry Pi-based program FM transmitter that plays online [[UP-FM]] music radio. Radio receivers can tune in to 87.5MHz if the transmitter is in range. 

Individuals from the different UP campuses, UP alumni and friends in different locations, lovers of Filipino indie music are encouraged to build and use this device to broadcast UP-FM in their areas. 

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==COMPONENTS==

'''A. For PIFM:'''


* Raspberry PI (model B).

[[File:Raspberry pi model B.jpg|250px]]

*SD Card with Raspbian "Wheezy" OS (operating system) installed.

[[File:Sd card.jpeg|250px]] [[File:Raspbian wheezy.png|250px]]

*USB Micro Cable

[[File:Usb micro cable.jpg|250px]]

*Ethernet Cable

[[File:Ethernet.jpg|250px]]

*Power Brick (5 volts, 2 amperes)

[[File:Power brick.jpg|250px]]

*Solid wire,no.22 and GPIO Cable (for the antenna)

[[File:Solid wire.jpg|250px]] [[File:Gpio.jpg|400px]]

*Soldering iron,Soldering lead,Electrical tape

[[File:Soldering iron.jpg|250px]] [[File:Lead.jpg |150px]] [[File:I-download.jpg|150px]]



'''B. For Programming:'''

*PC Monitor

[[File:Monitor.jpg|250px]]

*USB Mouse

[[File:Mouse.jpg|250px]]

*USB Keyboard

[[File:Keyboard.jpg |250px]]

*VGA to HDMI Cable

[[File:Vga to hdmi cable.jpg |250px]]

==PROCEDURES==

'''A. Making a Simple  Antenna'''

Since you may not have an ideal antenna, you will use a solid wire (no.22) as substitute. Cut a solid wire about 32 centimeters and stripe one end at least 1 cm. Also cut the GPIO cable wire near the socket and leave at least 1 cm wire on it. Stripe the wire near the GPIO socket. Combine both ends of the solid wire and GPIO socket using lead and soldering iron. Wrap the soldered wire and GPIO with the tape (see picture below).

[[File:IMG 20140423 130605.jpg|110px]] [[File:IMG 20140423 130743.jpg|200px]]         [[File:IMG 20140423 130855.jpg|200px]] [[File:IMG 20140423 131006.jpg|200px]]
[[File:IMG 20140423 131031.jpg|200px]] [[File:IMG 20140423 131101.jpg|200px]][[File:IMG 20140423 131151.jpg|200px]] [[File:IMG 20140423 131218.jpg|200px]][[File:IMG 20140423 131638.jpg|200px]] [[File:IMG 20140423 131724.jpg|200px]] [[File:IMG 20140423 132408.jpg|110px]] [[File:IMG 20140423 132752.jpg|110px]]



'''B. Installing and Running Raspbian "wheezy'''

You will now prepare the PIfm in Raspberry PI. To do so, you must have an SD card, with Raspbian "wheezy" OS installed. One way to do it is to download and install the [http://sourceforge.net/projects/win32diskimager '''Win 32 disk imager'''] to your windows PC. Also download [http://www.raspberrypi.org/downloads/ '''zip file of Raspbian "wheezy"'''] and extract the file. Plug in your SD card. Write the disk image file on the SD card.Then you have now the installed Raspbian "wheezy" OS in your SD card. 




'''C. Programming the PIFM'''

Once you have installed the Raspbian "wheezy" and ran it to your Raspberry PI, you can now program the PIFM transmitter using '''LXterminal'''. 

Now,open your lxterminal.

First,create a dedicated directory within the home directory and download the pifm files from icrobotics site as follows:


         '''''cd ~'''''

         '''''mkdir pifm'''''

         '''''cd pifm''''' 

         '''''wget http://www.icrobotics.co.uk/wiki/images/c/c3/Pifm.tar.gz'''''

         '''''tar -xvf Pifm.tar.gz'''''

Then download the application called '''sox (Sound Exchange) package''' . This is required to stream the internet radio and pipe it to PIFM program for transmission.



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==Development Team==
* Jhon Mark Sorio
* Nestor Tiglao (consultant)
* Peter Sy (consultant)

[[File:UP-FM-transmitter.png|250px|thumb|right|UP-FM transmitter in action<br/>[[File:Sample_video_for_FM.mp4|250px|thumb|right|see sample clip]]]]

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==Cost Estimate==
* Raspberry Pi Type B 512MB: Php 1,500
* SD Card
* wire antenna


==References==

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==See Also==
* [[UP-FM]]
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[[Category:DILC Projects]]