Скачать или смотреть 🚨 ESP32 - Blink the Internal Led

Here's a quick tutorial on how to blink the internal LED of the ESP32 using a couple of lines of code. The internal LED is actually built into the ESP32 board itself, so you don't need a breadboard, wires or any LEDs.

00:00 - Internal LED
00:15 - Solve ESP32 Connection Issues
01:20 - LED Blink Code
02:23 - Code Testing
04:00 - Hall Sensor Example
04:50 - More LED Testing

If you're having trouble connecting your ESP32 to your computer then check my troubleshooting video here:    • Solved: ESP32 Sketch Won't Compile or Uplo...  

The ESP32's internal LED is connected to pin 2 (while for the Arduino Uno it's pin 13).

Source code is below. Ensure you select an ESP32 board type. The 'ESP32 Dev Module' one works well with my Amazon bought A-Z Delivery ESP32-WROOM-32. Note you don't need the Serial.begin and Serial.println lines but weirdly my ESP32 LED won't blink if I don't include these lines. If you know what I'm doing wrong then let me know in the comments below.

#define INTERNAL_LED 2

void setup() {
pinMode(INTERNAL_LED,OUTPUT);
Serial.begin(9600);
}

void loop() {
digitalWrite(INTERNAL_LED,HIGH);
Serial.println("LED ON");
delay(1000);
digitalWrite(INTERNAL_LED,LOW);
Serial.println("LED OFF");
delay(1000);
}

If you find weird things happen with your ESP32's internal LED then I recommend the Hall Sensor example - this one also requires no external components.

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Also check out my ESP32, ESP2866 and Arduino microcontroller playlist:    • Unboxing Arduino Components for Lego Elect...