The First ESP32 Project

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Initialize the Project

Open Visual Studio Code, New Project:

Append a new line in platformio.ini, the final file follow as:

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[env:esp32dev]
platform = espressif32
board = esp32dev
framework = arduino
monitor_speed = 115200

Program Application Code

Edit src/main.cpp.

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#include "Arduino.h"
uint64_t chipid;  
void setup(){
    Serial.begin(115200);
}
void loop(){
    chipid=ESP.getEfuseMac();//The chip ID is essentially its MAC address(length: 6 bytes).
    Serial.printf("ESP32 Chip ID = %04X",(uint16_t)(chipid>>32));//print High 2 bytes
    Serial.printf("%08X\n",(uint32_t)chipid);//print Low 4bytes.
    delay(1500);
}

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