I think you do great Work

I have the Arduino Nano ESP32 for witch I tried to get the MAC Address, It didn’t work with your code so after several tries I changed It a bit.

Now It works and I’m able to get the MAC Address of my Board, below you can find the changes in the Code (Look for Changed).

#include <WiFi.h>
#include <esp_wifi.h>

void readMacAddress(){
uint8_t baseMac[6];
esp_err_t ret = esp_wifi_get_mac(WIFI_IF_STA, baseMac);
if (ret == ESP_OK) {
Serial.printf(“%02x:%02x:%02x:%02x:%02x:%02x\n”,
baseMac[0], baseMac[1], baseMac[2],
baseMac[3], baseMac[4], baseMac[5]);
} else {
Serial.println(“Failed to read MAC address”);
}
}

void setup(){
Serial.begin(9600);

WiFi.mode(WIFI_STA);
//WiFi.STA.begin();
WiFi.begin();   //I got an error on WiFi.STA.begin(); so I changed that to WiFi.begin();
delay(1000);    //Changed
Serial.print(“[DEFAULT] ESP32 Board MAC Address: “);
delay(1000);    //Changed
readMacAddress();
}

void loop(){

}

Best regards,

Martin

void setup(){
Serial.begin(115200);
Serial.print(“\Default ESP32 MAC Address: “);
Serial.println(Network.macAddress());
}

void loop(){
}

me_no_dev expressif / arduino esp32 github comment April 14

Sorry for bothering @Sara santos
I’m implementing ESP-NOW for my project.
I want to send 4 analog inputs simultaneously to slave board, does ESP32 master is capable of transmitting this rate of data? According to the 250Mb/s limitation.

Best wishes

Hi.
You’re probably not setting the right baud rate of 115200 on the serial monitor.
Regards,
Sara

Hi.
Make sure you have set the correct baud rate for the serial monitor: 115200
Regards,
Sara

Hi why when I’m going to get my esp mac address its’s words and letters are unreadable like squares triangles semicolon and etc?

do you know what is the problem?

Hi.
It works just fine for me. I just tested it.
What version of the ESP32 boards do you have installed? Tools > Boards > Boards Manager > ESP32 (it should mention which version is installed.)
Regards,
Sara

So this function worked fine for me:

esp_base_mac_addr_set(newMACAddress);