Refactor sensor API to support generic sensor types with configurable display precision

Replaced TemperatureSensor with a generic Sensor type that accepts sensor class, state class, unit, and display precision to support various sensor types. Added suggested_display_precision field to control decimal places in Home Assistant UI.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

1 files changed, 74 insertions, 0 deletions

diff --git a/examples/sensor.rs b/examples/sensor.rs
new file mode 100644
index 0000000..69bd87a
--- /dev/null
+++ b/examples/sensor.rs
@@ -0,0 +1,74 @@
+mod common;
+
+use common::AsyncTcp;
+use embassy_executor::{Executor, Spawner};
+use embassy_time::Timer;
+use static_cell::StaticCell;
+
+static RESOURCES: StaticCell<embassy_ha::DeviceResources> = StaticCell::new();
+
+#[embassy_executor::task]
+async fn main_task(spawner: Spawner) {
+    let mut stream = AsyncTcp::connect(std::env!("MQTT_ADDRESS"));
+
+    let mut device = embassy_ha::Device::new(
+        RESOURCES.init(Default::default()),
+        embassy_ha::DeviceConfig {
+            device_id: "example-device-id",
+            device_name: "Example Device Name",
+            manufacturer: "Example Device Manufacturer",
+            model: "Example Device Model",
+        },
+    );
+
+    let temperature_sensor = device.create_sensor(
+        "random-temperature-sensor-id",
+        embassy_ha::SensorConfig {
+            common: embassy_ha::EntityCommonConfig {
+                name: Some("Random Temperature Sensor"),
+                ..Default::default()
+            },
+            class: embassy_ha::SensorClass::Temperature,
+            state_class: embassy_ha::StateClass::Measurement,
+            unit: Some(embassy_ha::constants::HA_UNIT_TEMPERATURE_CELSIUS),
+            suggested_display_precision: Some(1),
+        },
+    );
+
+    let humidity_sensor = device.create_sensor(
+        "random-humidity-sensor-id",
+        embassy_ha::SensorConfig {
+            common: embassy_ha::EntityCommonConfig {
+                name: Some("Random Humidity Sensor"),
+                ..Default::default()
+            },
+            class: embassy_ha::SensorClass::Humidity,
+            state_class: embassy_ha::StateClass::Measurement,
+            unit: Some(embassy_ha::constants::HA_UNIT_PERCENTAGE),
+            suggested_display_precision: Some(0),
+        },
+    );
+
+    spawner.must_spawn(random_temperature_task(temperature_sensor));
+    spawner.must_spawn(random_humidity_task(humidity_sensor));
+
+    device.run(&mut stream).await.unwrap();
+}
+
+#[embassy_executor::task]
+async fn random_temperature_task(mut sensor: embassy_ha::Sensor<'static>) {
+    loop {
+        sensor.publish(rand::random_range(0.0..50.0));
+        Timer::after_secs(1).await;
+    }
+}
+
+#[embassy_executor::task]
+async fn random_humidity_task(mut sensor: embassy_ha::Sensor<'static>) {
+    loop {
+        sensor.publish(rand::random_range(0.0..100.0));
+        Timer::after_secs(1).await;
+    }
+}
+
+example_main!();