SI4713 Configuration Program by ON7LDS

Find the last version on https://github.com/on7lds/

This program lets you configure a SI4713 FM transmitter chip connected via I²C to your Raspberry Pi

Wiring

I used the Adafruit Stereo FM Transmitter with RDS/RBDS Breakout (https://www.adafruit.com/product/1958) wired as follows :

Pi	Breakout
3V3	VIN
GND	GND
SCL	SCL
SDA	SDA
GPIO5	RST

And wire LIN and RIN to some audio (I used the RPi 3.5mm audio out).

I²C

Activate I²C on your Pi
This can be a guide : https://learn.adafruit.com/adafruits-raspberry-pi-lesson-4-gpio-setup/configuring-i2c

WiringPi

Install the wiringPi libraries & headers :

 $ sudo apt-get install wiringpi

Compile

Then compile the program :

 $ gcc SI4713config.c -lwiringPi -o  SI4713config

Use

Start transmitting on 91.25Mhz with max. power, no RDS

 $ ./SI4713config -f 9125 -p 115

Use interactive mode :

 $ ./SI4713config -i

Have fun !