examples: raspberry-pi-thread: Add a thread service example that moni…

…tors position and hold detections on UserLed

examples/raspberry-pi-threads.rs

@@ -1,4 +1,4 @@
-use navigator_rs::Navigator;
+use navigator_rs::{Navigator, UserLed};
 use std::sync::{Arc, Mutex, RwLock};
 use std::thread::{self, sleep};
 use std::time::Duration;
@@ -27,8 +27,31 @@ fn main() {
         })
         .expect("Failed to spawn the sensor reader thread");
 
-    // This code block could be also other thread, but just run on the main one.
-    // This could work as a server get handler, or an instance that can be used by different services to monitor and analysis.
+    // This code block creates a thread that updates the `UserLed` according to its position, based on gravity.
+    // It will keep the LED state on, indicating that the navigator has fully flipped to axes X and Y or turned upside down (Z-axis).
+    // You can use it to also monitor abrupt collisions!
+    let sensor_data_cloned = sensor_data.clone();
+    let nav_cloned = nav.clone();
+    thread::Builder::new()
+        .name("Flip monitor".into())
+        .spawn(move || loop {
+            if let Ok(sensor_data) = sensor_data_cloned.read() {
+                if sensor_data.accelerometer.x.abs() > 8.00 {
+                    nav_cloned.lock().unwrap().set_led(UserLed::Led1, true)
+                };
+                if sensor_data.accelerometer.y.abs() > 8.00 {
+                    nav_cloned.lock().unwrap().set_led(UserLed::Led2, true)
+                };
+                if sensor_data.accelerometer.z < -8.00 {
+                    nav_cloned.lock().unwrap().set_led(UserLed::Led3, true)
+                };
+            }
+            sleep(Duration::from_millis(5000));
+        })
+        .expect("Failed to spawn the flip monitor thread");
+
+    // This code block could also be another thread, but we are going to run in the main one.
+    // This could work as a server get handler, or an instance that could be used by different services for monitoring and analysis.
     loop {
         if let Ok(sensor_data) = sensor_data.read() {
             println!("Read SensorData: {sensor_data:?}");