FM Transmitter using Raspberry Pi

Made by-

Mridul Miglani – 09511502811

Shailendra Singh Tomar – 09411502811

Gaurav Khemchandani – 10011502811

Nivesh Gakhar - 11111502811

What is FM?• Frequency Modulation• Range: 88-108 MHz

The FM generation process

The FM reception process

Introduction to Raspberry picredit-card-sized single-board computerdeveloped in the UK by the Raspberry Pi Foundation 

Specifications

Basic Components in PCB

Block Diagram

SoftwareDriver APIRaspbian

Visual diagram of API

connections

Working

Procedure Step 1: Install the pifm library using the

following commands: $ mkdir pifm $ cd pifm $ gcc –1m –std=c99 pifm.c –o pifm

Step 2:  find yourself an FM radio receiver and tune it to 102.0 MHz. This will create executable file ‘pifm’.

Step 3: Run the file using the following command: $ sudo ./pifm sound.wav 102

Advantages of Implementing FM on Raspberry pi

Minimum hardware requiredLeast number of connectionsLow power consumptionPortable small microcontroller board

areaUser friendly interface

ApplicationsHumidity And Te

mperature Sensor

Weather StationDigital Picture F

rameGaming DeviceMobile RobotSupercomputer

Home Automation System

Digital CameraTouchscreen

TabletLandline 

Some Additional Points

Audio file to be transmitted should be placed in the same directory as the source code file

The program supports only wav audio file format.

The frequency selected should be same as the tuning frequency of the audio receiver.

ReferencesElectronics For You (November,

2013 Issue)www.icrobotics.comwww.razzpisampler.oreilly.comwww.efymag.com