cleanup lcddisplay a lil

main.cpp

@@ -92,17 +92,24 @@ void sensorsThread(std::stop_token st, Sensors* s) {
 
 void displayThread(std::stop_token st, Sensors* s) {
     log(LOG::INF, "Thread", "Starting display_thread, pid {}", gettid());
+    // init internal variables of LCDDisplay class
     LCDDisplay lcd(LCD_PORT);
 
+    // basic lcd setup
+    lcd.open();
     lcd.setContrast(LCD_CONTRAST);
     lcd.setBacklight(true);
-    lcd.writeStr(2, 0, center("Waiting for sensors...", 40));
-
     lcd.setCustomChar(0, {16, 6, 9, 8, 8, 9, 6, 0});     // celcius
     lcd.setCustomChar(1, {0, 0, 4, 10, 10, 17, 31, 0});  // delta
     lcd.setCustomChar(2, {0, 8, 21, 21, 2, 0, 0, 0});    // home (tilde)
-    lcd._close();
+    lcd.close();
 
+    // welcome msg
+    lcd.writeBuf(2, 0, center("Waiting for sensors...", 40));
+    lcd.flushBuf();
+    lcd.clearBuf();
+
+    // actual main display loop
     while (!st.stop_requested()) {
         sem::display.acquire();  // holds the loop until sensor data is ready
         {
@@ -147,10 +154,9 @@ void displayThread(std::stop_token st, Sensors* s) {
         lcd.clearBuf();
     }
 
-    lcd._open();
-    lcd.clear();
-    lcd.writeStr(2, 0, center("linuxSmartie closed", 40));
-    lcd._close();
+    // goodbye msg
+    lcd.writeBuf(2, 0, center("linuxSmartie closed", 40));
+    lcd.flushBuf();
 }
 
 int main(int argc, char* argv[]) {