blink strip state

src/main.rs

@@ -1,3 +1,6 @@
+mod patterns;
+
+use patterns::{PixelColor, Strip};
 use bluer::{AdapterEvent, Device};
 use bluer::gatt::remote::Characteristic;
 use futures::{pin_mut, StreamExt};
@@ -57,19 +60,17 @@ async fn main() -> bluer::Result<()> {
 async fn send_seq(char: &Characteristic) -> bluer::Result<()> {
     println!("  Characteristic flags : {:?}, ", char.flags().await?);
 
-    let mut base_data: Vec<u8> = vec![0x00, 0x00, 0x01];
+    let mut strip_red : Strip<10>;
-    let mut off_data: Vec<u8> =  vec![0x00, 0x00, 0x01];
+    strip_red.strip.fill(PixelColor { red: 255, green: 0, blue: 0});
-    for _ in 0..10 {
+
-        base_data.append(&mut vec![0xff, 0x00, 0x00]);
+    let mut strip_green: Strip<10>;
-        off_data.append(&mut vec![0x00, 0x00, 0x00]);
+    strip_green.strip.fill(PixelColor { red: 0, green: 255, blue: 0});
-    }
 
     loop {
-        char.write(&*base_data).await?;
+        char.write(&*strip_green.to_array()).await?;
         sleep(Duration::from_secs(1)).await;
-        char.write(&*off_data).await?;
+        char.write(&*strip_red.to_array()).await?;
         sleep(Duration::from_secs(1)).await;
-
     }
 
 }
@@ -112,7 +113,9 @@ async fn find_neopixel_service(device: &Device) -> bluer::Result<Option<Characte
         for service in device.services().await? {
             if SERVICE_UUID == service.uuid().await? {
                 for char in service.characteristics().await? {
+                    println!("uuid : {}", &char.uuid().await?);
                     if PIXEL_DATA_UUID == char.uuid().await? {
+
                         return Ok(Some(char));
                     }
 

src/patterns.rs

@@ -0,0 +1,33 @@
+use bluer::gatt::remote::Characteristic;
+
+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,
+}
+
+
+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![];
+
+        for i in 0..N {
+            data.append(&mut vec![self.strip[i].red, self.strip[i].green, self.strip[i].blue]);
+        }
+        data
+    }
+}
+
+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(())
+}