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103 lines
2.5 KiB
Rust
103 lines
2.5 KiB
Rust
use std::io;
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use std::io::Write;
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use std::net::TcpStream;
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const STATE_COMMAND_PREFIX: u8 = 0x71;
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const PROGRAM_COMMAND_PREFIX: u8 = 0x61;
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pub enum StateStripCommand {
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On = 0x23,
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Off = 0x24,
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}
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pub enum ProgramStripCommand {
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SevenCrossFade = 0x25,
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RedGradual = 0x26,
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GreenGradual = 0x27,
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BlueGradual = 0x28,
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WhiteGradual = 0x2c,
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RedGreenCross = 0x2d,
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RedBlueCross = 0x2e,
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GreenBlueCross = 0x2f,
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SevenStrobe = 0x30,
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RedStrobe = 0x31,
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GreenStrobe = 0x32,
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BlueStrobe = 0x33,
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WhiteStrobe = 0x37,
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SevenJumping = 0x38,
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}
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#[derive(Debug)]
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pub struct LedStripController {
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stream: Option<TcpStream>,
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pub r: u8,
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pub g: u8,
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pub b: u8,
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}
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impl LedStripController {
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pub fn new(ip: &str, port: usize) -> io::Result<Self> {
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let stream = if let Ok(tcp_stream) = TcpStream::connect(format!("{}:{}", ip, port)) {
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Some(tcp_stream)
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} else {
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eprintln!("Failed to connect. Writing sent data to stdout.");
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None
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};
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Ok(Self {
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stream,
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r: 0,
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g: 0,
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b: 0,
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})
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}
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fn send(&mut self, message: &[u8]) -> io::Result<()> {
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if let Some(stream) = &mut self.stream {
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stream.write(message)?;
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Ok(())
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} else {
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println!("Send: {:?}", message);
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Ok(())
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}
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}
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/// Send an rgb color to the led strip
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pub fn send_rgb_color(&mut self, r: u8, g: u8, b: u8) -> io::Result<()> {
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self.r = r;
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self.g = g;
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self.b = b;
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let message = create_message(&[0x31, r, g, b, 0xf0]);
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self.send(&message)?;
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Ok(())
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}
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/// Sets the state of the strip to either on or off
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pub fn set_state(&mut self, cmd: StateStripCommand) -> io::Result<()> {
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self.send(&create_message(&[STATE_COMMAND_PREFIX, cmd as u8]))?;
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Ok(())
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}
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/// Sends a strip command with a specified speed
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/// that is one of 0x01 0x06, 0x10, 0x1c
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pub fn send_command(&mut self, cmd: ProgramStripCommand, speed: u8) -> io::Result<()> {
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self.send(&create_message(&[PROGRAM_COMMAND_PREFIX, cmd as u8, speed]))?;
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Ok(())
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}
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}
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/// Create a message for the led strip
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fn create_message(data: &[u8]) -> Vec<u8> {
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let mut data = data.clone().to_vec();
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data.append(&mut vec![0x0f]);
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let mut sum = 0u128;
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for i in &data {
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sum += *i as u128;
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}
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data.push(sum as u8 & 255);
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data
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}
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