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Alarm-clock-jukebox

Here is the project repo for my alarm clock that plays cellphone ringtones (i.e., a "jukebox"!)

The device uses a Nios II embedded softcore IP from Quartus, programmed on a MAX 10 FPGA. The ringtones are played using RTTTL (Ring Tones Text Transfer Language).

Video demonstration (click to go to YouTube)

Alt text

Navigating the repo:

The C source code can be found in the software/ folder. Schematics and software flowcharts for the device can be found in the diagrams/ folder.

Features

  • PWM with speaker to control volume User will select a "volume" switch and then on the display user will have the option to increment or decrement the current volume This will then adjust the duty cycle of the PWM on the speaker (look into logarithic scaling for this adjustment?)

  • Cellphone ringtone format for melodies User can select a "melody" switch and then on the display user will have the option to select from a programmed number of cellphone ringtone songs ("Song 1, Song 2", etc.) jukebox format Program will read these cellphone ringtone formats to play the appropiate frequencies on the speaker and for the appropiate duration (for the notes)