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The ESP32 chip has dual core processors, with a built-in Wi-Fi and bluetooth (both legacy and Low-Energy). It runs 32 bit programs and has a 512 kB RAM.

It also has wide variety of peripherals available: capacitive touch, ADCs, DACs, UART, SPI, I2C and much more. it comes with built-in hall effect sensor and built-in temperature sensor .


  • Single or Dual-Core 32-bit LX6 Microprocessor with clock frequency up to 240 MHz.
  • 520 KB of SRAM, 448 KB of ROM and 16 KB of RTC SRAM.
  • Supports 802.11 b/g/n Wi-Fi connectivity with speeds up to 150 Mbps.
  • Support for both Classic Bluetooth v4.2 and BLE specifications.
  • 34 Programmable GPIOs.
  • Up to 18 channels of 12-bit SAR ADC and 2 channels of 8-bit DAC
  • Serial Connectivity include 4 x SPI, 2 x I2C, 2 x I2S, 3 x UART.
  • Ethernet MAC for physical LAN Communication (requires external PHY).
  • 1 Host controller for SD/SDIO/MMC and 1 Slave controller for SDIO/SPI.
  • Motor PWM and up to 16-channels of LED PWM.
  • Secure Boot and Flash Encryption.
  • Cryptographic Hardware Acceleration for AES, Hash (SHA-2), RSA, ECC and RNG.


Different Ways to Program :

ESP32  can be programmed  in more than one way. And not surprisingly, the ESP32 supports multiple programming environments.

Some of the commonly used programming environments are:

  • Arduino IDE
  • PlatformIO IDE (VS Code)
  • LUA
  • MicroPython
  • Espressif IDF (IoT Development Framework)
  • JavaScript

As Arduino IDE is already a familiar environment, it is widely used in projects. 


paste this link

 on the Additional Board Manager URLs under File -> Preferences of Arduino IDE.

ESP32 Development Board WiFi+Bluetooth 38 Pin


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