2 releases
Uses old Rust 2015
0.1.2 | Jun 10, 2018 |
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0.1.1 | Jun 9, 2018 |
0.1.0 |
|
#834 in Audio
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rust-qwiic-mp3-trigger
A rust crate for the Sparkfun Qwiic MP3 Trigger (https://www.sparkfun.com/products/14714).
Synopsys
extern crate i2cdev;
extern crate qwiic_mp3_trigger;
use i2cdev::linux::LinuxI2CDevice;
fn main() {
let i2cdev = LinuxI2CDevice::new("/dev/i2c-1", 0x37).unwrap();
let mut mp3_trigger = qwiic_mp3_trigger::QwiicMP3Trigger::new(i2cdev).unwrap();
mp3_trigger.ping().unwrap();
let version: String = mp3_trigger.get_version().unwrap();
let song_count: u8 = mp3_trigger.get_song_count().unwrap();
let card_status: qwiic_mp3_trigger::CardStatus = mp3_trigger.get_card_status().unwrap();
mp3_trigger.play_track(1).unwrap();
mp3_trigger.play_filenumber(1).unwrap();
mp3_trigger.play_next().unwrap();
mp3_trigger.play_previous().unwrap();
mp3_trigger.stop().unwrap();
mp3_trigger.pause().unwrap();
let song_name: String = mp3_trigger.get_song_name().unwrap();
let play_status: qwiic_mp3_trigger::PlayStatus = mp3_trigger.get_play_status().unwrap();
mp3_trigger.set_eq(qwiic_mp3_trigger::EqualizerMode::Bass).unwrap();
mp3_trigger.set_volume(31).unwrap();
mp3_trigger.set_address(0x88).unwrap();
}
Configuring i2c
The raspberry pi is a good deal faster than the attiny85 in this module. Communication is flakey unless you slow down the rate. Add the following to /boot/config.txt
and reboot.
dtparam=i2c_baudrate=50000
Debugging
This crate uses the log crate for debug!
and trace!
logging. Enable it by initializing a logger such as simple_logger.
Dependencies
~2–3.5MB
~60K SLoC