Too late but it kinda works

src/uart.rs

@@ -5,5 +5,11 @@ pub fn write_char_uart(c: char) {
 }
 
 pub fn write_uart<T: AsRef<str>>(print: T) {
-    print.as_ref().chars().for_each(write_char_uart);
+    print.as_ref().chars().for_each(|a| {
+        // Add \r if needed
+        write_char_uart(a);
+        if a == '\n' {
+            write_char_uart('\r');
+        }
+    });
 }