measure pressure and temp!

firmware/src/main.rs

@@ -1,10 +1,72 @@
+use bme280::i2c::BME280;
+use esp_idf_hal::{
+    delay::Delay,
+    i2c::{I2cConfig, I2cDriver},
+    prelude::Peripherals,
+};
+
 fn main() {
-    // It is necessary to call this function once. Otherwise some patches to the runtime
-    // implemented by esp-idf-sys might not link properly. See https://github.com/esp-rs/esp-idf-template/issues/71
-    esp_idf_svc::sys::link_patches();
-
-    // Bind the log crate to the ESP Logging facilities
+    //set up logger
+    esp_idf_sys::link_patches(); // Important!
     esp_idf_svc::log::EspLogger::initialize_default();
+    log::info!("Meow :3");
 
-    log::info!("Hello, world!");
+    // Initialize peripherals
+    let peripherals = Peripherals::take().unwrap();
+
+    // Define SCL and SDA pins
+    let sda = peripherals.pins.gpio21;
+    let scl = peripherals.pins.gpio22;
+
+    // Create I2C config
+    let config = I2cConfig::new().baudrate(100000.into());
+
+    log::info!("Initializing I2C bus…");
+
+    // Initialize I2C driver
+    let i2c_bus = match I2cDriver::new(
+        peripherals.i2c0, // or i2c1/i2c2 based on board
+        sda,
+        scl,
+        &config,
+    ) {
+        Ok(i2c_connection) => i2c_connection,
+        Err(err) => {
+            log::error!("Initializing I2C connection failed with {err}!");
+            panic!()
+        }
+    };
+
+    log::info!("I2C up!");
+    log::info!("Initializing bme280…");
+
+    let mut bme280 = BME280::new_primary(i2c_bus);
+
+    //initialize Sensor
+    match bme280.init(&mut Delay::new(100000)) {
+        Ok(_) => {}
+        Err(err) => {
+            log::error!("Error initializing bme280 sensor:");
+            match err {
+                bme280::Error::CompensationFailed => log::error!("Failed to compensate a raw measurement"),
+                bme280::Error::Bus(buserr) => log::error!("Bus error: {}", buserr),
+                bme280::Error::InvalidData => log::error!("Failed to pare sensor data!"),
+                bme280::Error::NoCalibrationData => log::error!("No calibration data is available (probably forgot to call or check BME280::init for failure)"),
+                bme280::Error::UnsupportedChip =>  log::error!("Chip ID doesn't match expected value"),
+                bme280::Error::Delay => log::error!("Delay error"),
+            }
+        }
+    }
+    log::info!("BME280 up!");
+
+    loop {
+        let measurement = bme280.measure(&mut Delay::new_default()).unwrap();
+
+        println!(
+            "1：temperature:{0}°C, pressure:{1}",
+            measurement.temperature, measurement.pressure
+        );
+
+        Delay::default().delay_ms(1000);
+    }
 }