i was never checking the return value of write

include/LCDDisplay.hpp

@@ -15,7 +15,7 @@ class LCDDisplay {
     char writebuf[LCD_LINES * LCD_COLS + 8];                       // 4x40 chars + 2x4 setcursor commands
     static constexpr bool dualDisp = (LCD_LINES * LCD_COLS > 80);  // is it dual display device or not, evauluated from the size at compile time
 
-    void open();
+    void open(bool reopen = false);
     void write(const uint8_t* cmdbuf, uint8_t len);
     void close();