Key Features of ESP32:

• Dual-core or single-core processor: Uses Xtensa LX6 or Xtensa LX7 (ESP32-S3) at up to 240 MHz.


• Wi-Fi and Bluetooth: Supports Wi-Fi 802.11 b/g/n and Bluetooth 4.2/5.0 (BLE + Classic).


• Low power consumption: Suitable for battery-operated projects with deep sleep modes.


• Multiple GPIO pins: Supports ADC, DAC, I²C, SPI, UART, PWM, and Capacitive Touch.


• Security features: Supports encryption, secure boot, and flash encryption.


• Built-in peripherals: Includes an RTC, temperature sensor, Hall effect sensor, and more.


• Large flash and RAM: Typically comes with 4 MB flash and 520 KB SRAM.

Popular ESP32 Variants:

ESP32-WROOM-32: The most common module, used in many development boards.

ESP32-WROVER: Includes extra PSRAM (4 MB or 8 MB) for more demanding applications.

ESP32-S2: Single-core version with USB OTG support but no Bluetooth.

ESP32-C3: RISC-V-based version with Bluetooth 5 and lower power consumption.

ESP32-S3: Advanced version with better AI capabilities, USB OTG, and BLE 5.

Common Uses:

• IoT applications (smart home, automation)


• Robotics and drones


• Sensor networks


• Web servers and data logging


• Wearable devices


• Audio processing (e.g., internet radio)

Development and Programming:

• Arduino IDE: Simplifies ESP32 programming.


• ESP-IDF (Espressif IoT Development Framework): Official SDK for advanced users.


• MicroPython & CircuitPython: Run Python on ESP32.


• PlatformIO: A powerful development platform for embedded projects.