snapshot

sketches/doorbell-touch-esp32-32e/doorbell-touch-esp32-32e.ino

@@ -5,21 +5,36 @@ TFT_eSPI tft = TFT_eSPI();
 
 void setup() {
   Serial.begin(115200);
+  delay(1000);
+
+  // Turn on backlight
+  pinMode(27, OUTPUT);
+  digitalWrite(27, HIGH);
+
   tft.init();
   tft.setRotation(1);  // Landscape
+
+  // Cycle colors to confirm display works
+  uint16_t colors[] = {TFT_RED, TFT_GREEN, TFT_BLUE, TFT_WHITE};
+  const char* names[] = {"RED", "GREEN", "BLUE", "WHITE"};
+
+  for (int i = 0; i < 4; i++) {
+    tft.fillScreen(colors[i]);
+    Serial.printf("Screen: %s\n", names[i]);
+    delay(1000);
+  }
+
   tft.fillScreen(TFT_BLACK);
   tft.setTextColor(TFT_WHITE, TFT_BLACK);
-  tft.setTextSize(2);
-  tft.drawString("Hello from ESP32!", 20, 20);
-  tft.fillCircle(160, 120, 50, TFT_BLUE);
+  tft.setTextSize(3);
+  tft.drawString("Hello ESP32-32E!", 30, 100);
   Serial.println("Display initialized!");
 }
 
 void loop() {
-  // Touch test
   uint16_t x, y;
   if (tft.getTouch(&x, &y)) {
-    Serial.printf("Touch at: %d, %d\n", x, y);
+    Serial.printf("Touch: %d, %d\n", x, y);
     tft.fillCircle(x, y, 3, TFT_RED);
   }
 }