Works randomly , nearly not work

[gaochuntie]

The on and off for the 30 led strings just work some time,for most of the time,it didn't work and gives no error .
In other words,it only works if the leds is just connect to the rpi.
fn main() {
let mut controller = init_controller();
warm_light_off(&mut controller);
let listener = TcpListener::bind("127.0.0.1:8891").unwrap();

loop {
    println!("Waiting for client to connect");
    match listener.accept() {
        Ok((stream, _)) => {
            handle_client(stream, &mut controller);
        }
        Err(e) => {
            eprintln!("Unable to connect: {}", e);
        }
    }

}

}
fn handle_client(mut stream: TcpStream, controller: &mut Controller) {
println!("Client connected");
let mut buffer = [0; 512];
match stream.read(&mut buffer) {
Ok(size) => {
let msg = String::from_utf8_lossy(&buffer[..size]);
let msg = msg.trim_end_matches(|c| c == '\n' || c == '\r');
println!("Received: {}", msg);
match msg {
"on" => warm_light_on(controller),
"off" => warm_light_off(controller),
_ => {
eprintln!("Unknown command: [{}]", msg);
}
}
}
Err(e) => {
eprintln!("Failed to receive data: {}", e);
}
}
}

fn init_controller() -> Controller {
ControllerBuilder::new()
.freq(800_000)
.dma(10)
.channel(
0, // Channel Index
ChannelBuilder::new()
.pin(10) // GPIO 10 = SPI0 MOSI
.count(30) // Number of LEDs
.strip_type(StripType::Ws2812)
.brightness(255) // default: 255
.build(),
)
.build()
.unwrap()
}

fn warm_light_on(controller: &mut Controller) {
let leds = controller.leds_mut(0);

for led in leds {
    //LBRB
    //(255, 230, 150)
    *led = [255, 230, 150, 0];
}
if let Err(e) = controller.render() {
    eprintln!("Failed to render: {}", e);
}
controller.wait().unwrap();
println!("Warm light on");

}

fn warm_light_off(controller: &mut Controller) {
let leds = controller.leds_mut(0);
for led in leds {
*led = [0, 0, 0, 0];
}
if let Err(e) = controller.render() {
eprintln!("Failed to render: {}", e);
}
controller.wait().unwrap();
println!("Warm light off");
}

[newmanjoel]

just fixing some of the formatting for ya 😉

fn main() {
  let mut controller = init_controller();
  warm_light_off(&mut controller);
  let listener = TcpListener::bind("127.0.0.1:8891").unwrap();
  
  loop {
      println!("Waiting for client to connect");
      match listener.accept() {
          Ok((stream, _)) => {
              handle_client(stream, &mut controller);
          }
          Err(e) => {
              eprintln!("Unable to connect: {}", e);
          }
      }
  
  }
}
fn handle_client(mut stream: TcpStream, controller: &mut Controller) {
  println!("Client connected");
  let mut buffer = [0; 512];
  match stream.read(&mut buffer) {
    Ok(size) => {
      let msg = String::from_utf8_lossy(&buffer[..size]);
      let msg = msg.trim_end_matches(|c| c == '\n' || c == '\r');
      println!("Received: {}", msg);
      match msg {
        "on" => warm_light_on(controller),
        "off" => warm_light_off(controller),
        _ => {
        eprintln!("Unknown command: [{}]", msg);
      }
    }
    }
    Err(e) => {
    eprintln!("Failed to receive data: {}", e);
    }
  }
}

fn init_controller() -> Controller {
  ControllerBuilder::new()
        .freq(800_000)
        .dma(10)
        .channel(0, // Channel Index
          ChannelBuilder::new()
            .pin(10) // GPIO 10 = SPI0 MOSI
            .count(30) // Number of LEDs
            .strip_type(StripType::Ws2812)
            .brightness(255) // default: 255
            .build(),
      )
    .build()
    .unwrap()
}

fn warm_light_on(controller: &mut Controller) {
  let leds = controller.leds_mut(0);
  
  for led in leds {
      //LBRB
      //(255, 230, 150)
      *led = [255, 230, 150, 0];
  }
  if let Err(e) = controller.render() {
      eprintln!("Failed to render: {}", e);
  }
  controller.wait().unwrap();
  println!("Warm light on");
}

fn warm_light_off(controller: &mut Controller) {
  let leds = controller.leds_mut(0);
  for led in leds {
  *led = [0, 0, 0, 0];
  }
  if let Err(e) = controller.render() {
  eprintln!("Failed to render: {}", e);
  }
  controller.wait().unwrap();
  println!("Warm light off");
}

What specifically are the errors?

[JMurph2015]

Also would be worth (positive) logging at every step to ensure that your code is actually getting to the render step in the first place 😅

I don't have a super good testing setup for this lib right now (aka my raspi is out of commission), but in the past this use-case has worked alright, and if it were broken for everyone I think there would be more issues being posted 😅