esp32/esp8266 get hardware infor (RAM/ROM)

hardware-esp8266.ino

#include <WiFi.h>
//#include <ESP8266WiFi.h>

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  printHardwareInfo();
  printBoardName();
  printMacIp();
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}

void printHardwareInfo() {
  uint32_t flashSize = ESP.getFlashChipSize();// Tổng dung lượng bộ nhớ Flash
  uint32_t freeHeap = ESP.getFreeHeap();// Dung lượng RAM còn trống
  //uint32_t chipId = ESP.getChipId();
  uint32_t chipMode = ESP.getFlashChipMode();
  //Serial.println(chipId);

  Serial.println("Hardware Information:");
  Serial.print("  Flash chip size: ");
  Serial.print(flashSize / 1024 / 1024);
  Serial.println("MB");

  uint32_t sketchSize = ESP.getSketchSize(); //code và data đang dùng
  //Serial.print("  Sketch size: ");
  Serial.print("  Flash chip size use: ");
  Serial.print(sketchSize / 1024 );
  
  Serial.println(" KB");


  uint32_t totalRAMSize = ESP.getHeapSize();//Tổng dung lượng RAM
  

  Serial.print("  Total RAM size: ");
  Serial.print(totalRAMSize / 1024); // Chuyển từ byte sang kilobyte
  Serial.println("KB");

  Serial.print("  Total RAM Free heap size: ");
  Serial.print(freeHeap / 1024 );
  Serial.println("KB");
 // Serial.print("  Chip ID: 0x");
 // Serial.println(chipId, HEX);
 //uint32_t readChipSize = ESP.getFlashChipRealSize(); //real chip size
//  Serial.print("  Real chip size: ");
//  Serial.print(freeHeap / 1024 );
//  Serial.println("KB");
 
 uint32_t getCpuFreqMHz = ESP.getCpuFreqMHz(); //real chip size
 Serial.print("  getCpuFreqMHz: ");
 Serial.println(getCpuFreqMHz );
 Serial.print("  getSdkVersion: ");
 Serial.println(ESP.getSdkVersion());

}

void printBoardName() {
  #ifdef ARDUINO_ARCH_ESP32
    Serial.println("  Board: ESP32");
  #endif

  #ifdef ESP8266
    Serial.println("  Board: ESP8266");
  #endif

  #if defined(BOARD_ESP01)
    Serial.println("  Board: ESP-01");
  #elif defined(BOARD_ESP07)
    Serial.println("  Board: ESP-07");
  #elif defined(BOARD_ESP12)
    Serial.println("  Board: ESP-12");
  #elif defined(BOARD_ESP12E)
    Serial.println("  Board: ESP-12E");
  #elif defined(BOARD_ESP201)
    Serial.println("  Board: ESP-201");
  #elif defined(BOARD_ESP8266_GENERIC)
    Serial.println("  Board: Generic ESP8266 module");
  #else
    //Serial.println("Board: Unknown");
  #endif
}

void printMacIp() {
  Serial.print("  MAC address: ");
  Serial.println(WiFi.macAddress());
}

z-example-result.txt

Hardware Information:
  Flash chip size: 4MB
  Flash chip size use: 263 KB
  Total RAM size: 366KB
  Total RAM Free heap size: 341KB
  getCpuFreqMHz: 240
  getSdkVersion: v4.4.6-dirty
  Board: ESP32
  MAC address: 24:0A:C4:00:01:10

Hardware Information:
Flash chip size: 4MB
Flash chip size use: 265 KB
Total RAM Free heap size: 50KB
getCpuFreqMHz: 80
getSdkVersion: 2.2.2-dev(38a443e)
Board: ESP8266
MAC address: ddddd

(Wemos D1 Mini)

Total RAM size --not working

17:47:24.283 -> Hardware Information:
17:47:24.283 -> Flash chip size: 4MB
17:47:24.283 -> Flash chip size use: 265 KB
17:47:24.283 -> Total RAM Free heap size: 50KB
17:47:24.283 -> getCpuFreqMHz: 80
17:47:24.283 -> getSdkVersion: 2.2.2-dev(38a443e)
17:47:24.283 -> Board: ESP8266
17:47:24.283 -> MAC address: ddddd

NodeMCU

17:49:29.075 -> Hardware Information:
17:49:29.075 -> Flash chip size: 4MB
17:49:29.150 -> Flash chip size use: 279 KB
17:49:29.150 -> Total RAM Free heap size: 300KB
17:49:29.150 -> getCpuFreqMHz: 240
17:49:29.150 -> getSdkVersion: v4.4.5
17:49:29.150 -> Board: ESP32
17:49:29.150 -> MAC address: Addddd

ESP32 CAM

17:51:56.273 -> Hardware Information:
17:51:56.273 -> Flash chip size: 4MB
17:51:56.307 -> Flash chip size use: 263 KB
17:51:56.307 -> Total RAM Free heap size: 305KB
17:51:56.307 -> getCpuFreqMHz: 240
17:51:56.307 -> getSdkVersion: v4.4.5
17:51:56.307 -> Board: ESP32
17:51:56.307 -> MAC address: Edddddd

ESP32 DEVKIP