This is an arduino library that can play musical tones on a speaker (boring!) or a BLDC motor (that's more like it!)
The BLDC part requires SimpleFOC arduino library to do the FOC (3 phase) control and requires specific hardware The Piezo should work with little speakers or Piezo (you may need to add a 100ohm resistor in series as the speaker is directly driven from an output pin!). This shouldn't require specific hardware.
Update: This is using an old version of SimpleFOC (v1.5) - it no longer compiles on latest version.
This library has a RTTTL parser and is able to play polytones on multiple BLDC motors such as the hoverboard motor in the vid. You can set up a jukebox of songs for it to play and repeat. It can also play tunes on boring speakers too.
I've used a storm32 gimbal controller to drive the motors - this is a fair bit more powerful than an atmega328p but I reckon the simple examples will squeeze into the 2K of SRAM of an UNO.
The examples folder contains:
| Example | Description | Piezo | BLDC |
|---|---|---|---|
| openloop | This example checks whether you have your voltage limits correct for BLDC | bldc/0_openloop_motor.cpp | n/a |
| frequency sweep | Plays descending frequency from octave 8 to octave 0 (108 notes) | bldc/1_frequency_sweep.cpp | piezo/1_frequency_sweep.cpp |
| simple tones | Plays old macdonald (doesn't use RTTTL) | bldc/2_simple_tones.cpp | bldc/2_simple_tones.cpp |
| serial player | Takes input from your keyboard e.g. you press c it plays c5 | bldc/3_serial_player.cpp | piezo/3_serial_player.cpp |
| ringtone player | Plays pink panther RTTTL | bldc/4_ringtone_player.cpp | piezo/4_ringtone_player.cpp |
| polytone player | Plays polyphonic (two track) super mario theme on two 'speakers' | bldc/5_polytone_player.cpp | piezo/5_polytone_player.cpp |
| jukebox player | Plays a set of RTTTL songs | bldc/6_jukebox_player.cpp | piezo/6_jukebox_player.cpp |
The jukebox is a set of RTTTL files that are found in RTTTL.h. Only one is polyphonic (it sort of follows the PTTTL format)
- RTTTL_CROATIA
- RTTTL_FRANCE
- RTTTL_WALES
- RTTTL_USA
- RTTTL_SIMPSONS
- RTTTL_PINK_PANTHER
- RTTTL_SUPER_MARIO_BROS
- RTTTL_SUPER_MARIO_BROS_BASS
- RTTTL_SUPER_MARIO_BROS_POLY