Initial commit

Signed-off-by: Thomas Klaehn <thomas.klaehn@perinet.io>

src/main.rs

@@ -0,0 +1,68 @@
+use anyhow::{bail, Result};
+use esp_idf_svc::eventloop::EspSystemEventLoop;
+use esp_idf_svc::hal::prelude::Peripherals;
+use log::info;
+use rgb_led::{RGB8, WS2812RMT};
+use wifi::wifi;
+
+/// This configuration is picked up at compile time by `build.rs` from the
+/// file `cfg.toml`.
+#[toml_cfg::toml_config]
+pub struct Config {
+    #[default("Wokwi-GUEST")]
+    wifi_ssid: &'static str,
+    #[default("")]
+    wifi_psk: &'static str,
+}
+
+/// Entry point to our application.
+///
+/// It sets up a Wi-Fi connection to the Access Point given in the
+/// configuration, then blinks the RGB LED green/blue.
+///
+/// If the LED goes solid red, then it was unable to connect to your Wi-Fi
+/// network.
+fn main() -> Result<()> {
+    esp_idf_svc::sys::link_patches();
+    esp_idf_svc::log::EspLogger::initialize_default();
+
+    let peripherals = Peripherals::take().unwrap();
+    let sysloop = EspSystemEventLoop::take()?;
+
+    info!("Hello, world!");
+
+    // Start the LED off yellow
+    let mut led = WS2812RMT::new(peripherals.pins.gpio2, peripherals.rmt.channel0)?;
+    led.set_pixel(RGB8::new(50, 50, 0))?;
+
+    // The constant `CONFIG` is auto-generated by `toml_config`.
+    let app_config = CONFIG;
+
+    // Connect to the Wi-Fi network
+    let _wifi = match wifi(
+        app_config.wifi_ssid,
+        app_config.wifi_psk,
+        peripherals.modem,
+        sysloop,
+    ) {
+        Ok(inner) => inner,
+        Err(err) => {
+            // Red!
+            led.set_pixel(RGB8::new(50, 0, 0))?;
+            bail!("Could not connect to Wi-Fi network: {:?}", err)
+        }
+    };
+
+    loop {
+        // Blue!
+        led.set_pixel(RGB8::new(0, 0, 50))?;
+        // Wait...
+        std::thread::sleep(std::time::Duration::from_secs(1));
+        info!("Hello, world!");
+
+        // Green!
+        led.set_pixel(RGB8::new(0, 50, 0))?;
+        // Wait...
+        std::thread::sleep(std::time::Duration::from_secs(1));
+    }
+}