add awake and charge indicator led functions

rust/src/plant_hal.rs

@@ -216,7 +216,17 @@ pub struct BackupHeader{
 }
 
 impl PlantCtrlBoard<'_> {
+    pub fn update_charge_indicator(&mut self){
+        let is_charging = match self.battery_driver.average_current() {
+            OkStd(current) => current < 20,
+            Err(_) => false,
+        };
+        self.shift_register.decompose()[CHARGING].set_state(is_charging.into()).unwrap();
+    }
+
+
     pub fn deep_sleep(&mut self, duration_in_ms:u64) -> !{
+        self.shift_register.decompose()[AWAKE].set_low().unwrap();
         unsafe { 
             //if we dont do this here, we might just revert a newly flashed firmeware
             mark_app_valid();