Add sntp, sync the time on startup

sphinx-key/src/conn/mod.rs

@@ -1,6 +1,7 @@
 pub mod wifi;
 pub mod http;
 pub mod mqtt;
+pub mod sntp;
 mod html;
 
 

sphinx-key/src/conn/sntp.rs

@@ -0,0 +1,13 @@
+use esp_idf_svc::sntp::EspSntp;
+use esp_idf_svc::sntp::SyncStatus::Completed;
+use std::time::Duration;
+use std::thread;
+
+pub fn sync_time() {
+    let sntp = EspSntp::new_default().unwrap();
+    println!("SNTP initialized");
+    while sntp.get_sync_status() != Completed {
+            println!("Waiting for sntp sync...");
+            thread::sleep(Duration::from_secs(1));
+    }
+}

sphinx-key/src/main.rs

@@ -12,6 +12,7 @@ use esp_idf_sys as _; // If using the `binstart` feature of `esp-idf-sys`, alway
 use std::sync::{mpsc, Arc};
 use std::thread;
 use std::time::Duration;
+use std::time::SystemTime;
 
 use embedded_svc::storage::RawStorage;
 use esp_idf_hal::peripherals::Peripherals;
@@ -74,6 +75,15 @@ fn main() -> Result<()> {
             }
         };
 
+        conn::sntp::sync_time();
+        let now = SystemTime::now()
+            .duration_since(SystemTime::UNIX_EPOCH)
+            .unwrap();
+        println!(
+            "Completed the time sync, here is the UNIX time: {}",
+            now.as_secs(),
+        );
+
         led_tx.send(Status::ConnectingToMqtt).unwrap();
         // _conn needs to stay in scope or its dropped
         loop {