dual core setup

mqtt_display/src/display/task.rs

@@ -6,7 +6,7 @@ use log::{error, info};
 
 use alloc::boxed::Box;
 use alloc::format;
-use heapless::String as HString;
+use heapless::String;
 use mousefood::{EmbeddedBackend, EmbeddedBackendConfig};
 use ratatui::{
     layout::{Constraint, Direction, Layout},
@@ -27,9 +27,9 @@ const REFRESH_INTERVAL_MS: u64 = 100;
 
 /// Internal state for what to render.
 struct DisplayState {
-    status: HString<32>,
+    status: String<32>,
     last_imu: Option<ImuReading>,
-    last_error: Option<HString<64>>,
+    last_error: Option<String<64>>,
     mqtt_connected: bool,
     mqtt_msg_count: u32,
 }
@@ -37,7 +37,7 @@ struct DisplayState {
 impl Default for DisplayState {
     fn default() -> Self {
         Self {
-            status: HString::new(),
+            status: String::new(),
             last_imu: None,
             last_error: None,
             mqtt_connected: false,
@@ -66,7 +66,7 @@ impl DisplayState {
             DisplayCommand::Clear => {
                 self.last_imu = None;
                 self.last_error = None;
-                self.status = HString::new();
+                self.status = String::new();
             }
         }
     }