The ESP32 is a microcontroller board developed by Espressif Systems, which is an enhanced version of the ESP8266, with more capabilities such as:

Nowadays, newer ESP32 boards come with USB Type-C ports for easy plugging in, easier to use than Micro USB and more durable.

list	details
Main chip	ESP32 (various models such as ESP32-WROOM-32, S2, C3, S3)
CPU	Dual-core Xtensa LX6 @ 240MHz
Wi-Fi	802.11 b/g/n 2.4GHz
Bluetooth	Bluetooth 4.2 + BLE (some models support BT 5.0)
Flash memory	4MB or more
SRAM	~520KB
Working pressure	3.3V (but can receive power via USB 5V, has a built-in regulator)
GPIO (digital pin)	Up to ~30 legs (depending on model)
Analog Input (ADC)	Up to 18 channels (12-bit)
Analog Output (DAC)	2 channels (8-bit)
Communication	UART, I2C, SPI, PWM, CAN, IR, etc.
USB Type-C	Used for uploading programs and supplying power.
Support Li-ion battery	Some models have built-in charging circuitry (e.g. ESP32-C3 DevKit).

✅ Suitable for work:

✅ Popular usage examples:

Example code to open Wi-Fi Web Server on ESP32:

#include <WiFi.h>

const char* ssid = "WiFi name";

const char* password = "password";

WiFiServer server(80);

void setup() {

Serial.begin(115200);

WiFi.begin(ssid, password);

while (WiFi.status() != WL_CONNECTED) {

delay(500);

Serial.print(".");

}

Serial.println("\nConnected successfully: ");

Serial.println(WiFi.localIP());

server.begin();

}

void loop() {

WiFiClient client = server.available();

if (client) {

client.println("HTTP/1.1 200 OK");

client.println("Content-Type: text/html");

client.println();

client.println("<h2>Hello from ESP32!</h2>");

delay(1000);

}