Fix horizontal mirroring for ILI9488 display by updating MADCTL command handling

esphome/cat-medication-tracker.yaml

@@ -12,13 +12,13 @@ esphome:
       - delay: 300ms
       - lambda: |-
           // Override MADCTL to 0x48: MX=1, BGR=1 — fixes horizontal mirror
-          // DC pin (GPIO2) is regular GPIO; use SPIDevice for CS/data
-          digitalWrite(2, LOW);            // DC = command
-          id(my_display)->enable();        // assert CS
-          id(my_display)->transfer(0x36);  // MADCTL command
-          digitalWrite(2, HIGH);           // DC = data
-          id(my_display)->transfer(0x48);  // MX=1, BGR=1
-          id(my_display)->disable();       // deassert CS
+          uint8_t cmd = 0x36, dat = 0x48;
+          digitalWrite(2, LOW);                        // DC = command
+          id(my_display)->enable();                    // assert CS
+          id(my_display)->write_array(&cmd, 1);        // MADCTL command
+          digitalWrite(2, HIGH);                       // DC = data
+          id(my_display)->write_array(&dat, 1);        // MX=1, BGR=1
+          id(my_display)->disable();                   // deassert CS
       - component.update: my_display
 
 esp32: