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No commits in common. "142fdb44d785e0c4238ae292d62ffc85a39d5d6c" and "d7f7dede492f98d911ae5c9254eecb646e081f69" have entirely different histories.
142fdb44d7 ... d7f7dede49

4 changed files with 76 additions and 196 deletions
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1
.gitignore vendored
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@ -9,4 +9,3 @@ target/
**/*.rs.bk
.idea/
*.iml

70
src/bluetooth.rs
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@ -1,15 +1,17 @@
use bluer::gatt::remote::Characteristic;
use std::collections::HashSet;
use std::sync::mpsc::{channel, Sender};
use std::time::Duration;
use bluer::{Adapter, AdapterEvent, Address, Device, Result, Uuid};
use futures::{pin_mut, StreamExt};
use std::collections::HashSet;
use std::time::Duration;
use tokio::task::spawn_blocking;
use tokio::sync::mpsc;
// const CONNECT_RETRIES: u8 = 3;
// const SERVICE_UUID: bluer::Uuid = bluer::Uuid::from_u128(0xadaf0900c33242a893bd25e905756cb8);
// const PIXEL_DATA_UUID: bluer::Uuid = bluer::Uuid::from_u128(0xadaf0903c33242a893bd25e905756cb8);
pub(crate) async fn create_session() -> Result<Adapter> {
pub(crate) async fn create_session() -> Result<Adapter>
{
let session = bluer::Session::new().await?;
let adapter_names = session.adapter_names().await?;
let adapter_name = adapter_names.first().expect("no Bluetooth adapter found");
@ -20,9 +22,10 @@ pub(crate) async fn create_session() -> Result<Adapter> {
}
async fn has_service(device: &Device, uuid: &Uuid) -> Result<bool> {
let uuids = device.uuids().await?.unwrap_or_default();
if uuids.contains(uuid) {
return Ok(true);
return Ok(true)
}
Ok(false)
}
@ -35,6 +38,7 @@ async fn bluetooth_scan(tx: mpsc::Sender<Device>, adapter: Adapter, uuid: Uuid)
while let Some(evt) = discover.next().await {
match evt {
AdapterEvent::DeviceAdded(addr) => {
println!("device adress {}", addr);
if already_scanned.contains(&addr) {
continue;
}
@ -43,28 +47,36 @@ async fn bluetooth_scan(tx: mpsc::Sender<Device>, adapter: Adapter, uuid: Uuid)
match has_service(&device, &uuid).await {
Ok(service_found) => {
if service_found {
tx.send(device).await.unwrap();
tx.send(device).await;
println!("found service in device {}", addr);
}
}
Err(_) => continue,
Err(_) => { continue }
}
}
_ => {}
}
}
println!("ended");
Ok(())
}
pub(crate) async fn scan_devices(adapter: Adapter, uuid: Uuid) -> Vec<Device> {
let (tx, mut rx) = mpsc::channel(4);
let timeout = tokio::time::timeout(Duration::from_secs(30), bluetooth_scan(tx, adapter, uuid));
pub(crate) async fn scan_devices(adapter: Adapter, uuid: Uuid) -> Vec<Device> {
println!("start scanning devices");
let (tx, mut rx) = mpsc::channel(4);
;
let timeout = tokio::time::timeout(Duration::from_secs(30), bluetooth_scan(tx, adapter, uuid)).await;
let scan = tokio::spawn(timeout);
println!("good");
let mut devices: Vec<Device> = Vec::new();
while let Some(device) = rx.recv().await {
while let Some(device)= rx.recv().await {
println!("new device received {}", device.address());
devices.push(device);
println!("len {}", devices.len());
if devices.len() >= 2 {
println!("drop");
drop(scan);
break;
}
@ -72,39 +84,3 @@ pub(crate) async fn scan_devices(adapter: Adapter, uuid: Uuid) -> Vec<Device> {
devices
}
pub async fn connect(device: &Device, retries: u8) -> bluer::Result<()> {
if device.is_connected().await? {
return Ok(());
}
for i in 0..retries {
match device.connect().await {
Ok(()) => return Ok(()),
Err(_) => {
println!("connection error ({}), retry…", i);
}
}
}
Err(bluer::Error {
kind: bluer::ErrorKind::ConnectionAttemptFailed,
message: "all attempts fail".parse().unwrap(),
})
}
pub async fn get_char(
device: &Device,
service_uuid: Uuid,
char_uuid: Uuid,
) -> Result<Option<Characteristic>> {
for service in device.services().await? {
if service_uuid == service.uuid().await? {
for char in service.characteristics().await? {
if char_uuid == char.uuid().await? {
return Ok(Some(char));
}
}
}
}
Ok(None)
}

91
src/main.rs
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@ -1,67 +1,35 @@
mod bluetooth;
mod patterns;
mod bluetooth;
use std::convert::TryFrom;
use std::thread::sleep;
use std::time::Duration;
use patterns::{PixelColor, Strip};
use bluer::Device;
use bluer::gatt::remote::Characteristic;
use patterns::Strip;
use tokio::sync::watch;
use crate::patterns::PixelColor;
use std::time::Duration;
use tokio::time::sleep;
use crate::patterns::RainbowPattern;
const SERVICE_UUID: bluer::Uuid = bluer::Uuid::from_u128(0xadaf0900c33242a893bd25e905756cb8);
const PIXEL_DATA_UUID: bluer::Uuid = bluer::Uuid::from_u128(0xadaf0903c33242a893bd25e905756cb8);
const STRIP_SIZE: usize = 25;
const BASE_STRIP_DATA: [u8; 3] = [0x00, 0x00, 0x01];
const BASE_STRIP_DATA : [u8; 3] = [0x00, 0x00, 0x01];
#[tokio::main(flavor = "current_thread")]
async fn main() -> bluer::Result<()> {
let adapter = bluetooth::create_session().await?;
let devices = bluetooth::scan_devices(adapter, SERVICE_UUID).await;
let mut pixels = Vec::<PixelColor>::new();
for _ in 0..STRIP_SIZE{
pixels.push(PixelColor{
red: 255, green: 0, blue:0
})
}
let strip = Strip::<STRIP_SIZE> {
strip : <[PixelColor; 25]>::try_from(pixels).unwrap()
};
let (tx, rx) = watch::channel(Strip::<STRIP_SIZE>::default());
for device in devices {
bluetooth::connect(&device, 3).await?;
let char = bluetooth::get_char(&device, SERVICE_UUID, PIXEL_DATA_UUID).await?;
if let Some(char) = char {
let mut rx_device = rx.clone();
tokio::spawn(async move {
println!("device connected : {}", &device.address());
while rx_device.changed().await.is_ok() {
println!("ok");
let strip = rx_device.borrow().clone();
write_strip(&strip, &char).await.unwrap();
}
});
}
println!("{:?}", device);
}
loop {
tx.send(strip);
tokio::time::sleep(Duration::from_secs(1)).await;
tx.send(Strip::<STRIP_SIZE>::default());
tokio::time::sleep(Duration::from_secs(1)).await;
}
Ok(())
}
// fn create_pattern_list() -> Vec<patterns>
// async fn send_seq(char: &Characteristic) -> bluer::Result<()> {
// println!(" Characteristic flags : {:?}, ", char.flags().await?);
//
@ -82,15 +50,32 @@ async fn main() -> bluer::Result<()> {
// Ok(())
// }
pub async fn write_strip<const N: usize>(
data: &Strip<N>,
char: &Characteristic,
) -> bluer::Result<()> {
let frame = [BASE_STRIP_DATA.to_vec(), data.to_array()].concat();
print!("{:?}", frame);
char.write(&*frame).await?;
Ok(())
}
// pub async fn write_strip<const N: usize>(data: Strip<N>, char: &Characteristic) -> bluer::Result<()> {
// let frame = [BASE_STRIP_DATA.to_vec(), data.to_array()].concat();
// print!("{:?}",frame);
// char.write(&*frame).await?;
// Ok(())
// }
// async fn connect(device: &Device, retries: u8) -> bluer::Result<()> {
// if device.is_connected().await? {
// return Ok(())
// }
// for i in 0..retries {
// match device.connect().await {
// Ok(()) => return Ok(()),
// Err(_) => {
// println!("connection error ({}), retry…", i);
// }
// }
//
// }
//
// Err(bluer::Error {
// kind: bluer::ErrorKind::ConnectionAttemptFailed,
// message: "all attempts fail".parse().unwrap(),
// })
// }
// async fn find_neopixel_service(device: &Device) -> bluer::Result<Option<Characteristic>> {
// let addr = device.address();

106
src/patterns.rs
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@ -1,113 +1,33 @@
use std::fmt;
use bluer::gatt::remote::Characteristic;
#[derive(Clone, Copy, Debug)]
pub struct PixelColor {
const BASE_STRIP_DATA : [u8; 5] = [0x0, 0x0, 0x0, 0x0, 0x1];
#[derive(Clone, Copy)]
pub(crate) struct PixelColor {
pub(crate) red: u8,
pub(crate) green: u8,
pub(crate) blue: u8,
}
impl PixelColor {
fn new() -> Self {
Default::default()
}
}
impl fmt::Display for PixelColor {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "[{},{},{}]", self.red, self.green, self.blue)
}
}
impl Default for PixelColor {
fn default() -> Self {
PixelColor {
red: 0,
green: 0,
blue: 0,
}
}
}
#[derive(Copy, Clone)]
pub struct Strip<const N: usize> {
pub(crate) struct Strip<const N: usize> {
pub strip: [PixelColor; N],
}
impl<const N: usize> Strip<N> {
pub fn to_array(&self) -> Vec<u8> {
let mut data: Vec<u8> = vec![];
let mut data : Vec<u8> = vec![];
for i in 0..N {
data.append(&mut vec![
self.strip[i].red,
self.strip[i].green,
self.strip[i].blue,
]);
data.append(&mut vec![self.strip[i].red, self.strip[i].green, self.strip[i].blue]);
}
data
}
}
impl<const N: usize> Default for Strip<N> {
fn default() -> Self {
Strip {
strip: [PixelColor::new(); N],
}
}
}
pub struct RainbowPattern<const N: usize> {
pub(crate) current_iteration: usize,
pub(crate) max_iteration: Option<usize>,
}
impl<const N: usize> Iterator for RainbowPattern<N> {
type Item = Strip<N>;
fn next(&mut self) -> Option<Self::Item> {
if let Some(nbr_iteration) = self.max_iteration {
if nbr_iteration == self.current_iteration {
return None;
}
}
let mut strip = Strip::default();
let step = 255 / N;
for i in 0..N {
let pos = (i * step + self.current_iteration) as u8;
strip.strip[i] = wheel(pos)
}
self.current_iteration = self.current_iteration + 1;
Some(strip)
}
}
fn wheel(index: u8) -> PixelColor {
let pos = 255 - index;
match pos {
0..=85 => PixelColor {
red: 255 - (pos * 3),
green: 0,
blue: pos * 3,
},
86..=170 => {
let pos = pos - 85;
PixelColor {
red: 0,
green: pos * 3,
blue: 255 - (pos * 3),
}
}
_ => {
let pos = pos - 170;
return PixelColor {
red: pos * 3,
green: 255 - (pos * 3),
blue: 0,
};
}
}
async fn write_strip<const N: usize>(data: Strip<N>, char: Characteristic) -> bluer::Result<()> {
let mut frame= BASE_STRIP_DATA.to_vec();
frame.append(&mut data.to_array());
char.write(&*frame).await?;
Ok(())
}