Added delay to wait_for_display for better compatibility

src/lib.rs

@@ -282,6 +282,7 @@ impl<BusyPin: InputPin, ResetPin: OutputPin, DcPin: OutputPin, Spi: SpiDevice, D
     }
 
     fn wait_for_display(&mut self) {
+        self.delay.delay_ms(1);
         while self.busy.is_low().expect("Failed to read busy pin") {}
     }