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  • ESP-WROOM-32 Bluetooth, BLE, And WIFI Development Board
  • ESP-WROOM-32 Bluetooth, BLE, And WIFI Development Board - PCB Antenna
  • ESP-WROOM-32 Bluetooth, BLE, And WIFI Development Board - External Antenna

ESP32-WROOM-32D Bluetooth, BLE, And WIFI Development Board With PCB Antenna

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The ESP32 is a series of low-cost, low-power system-on-chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth. The ESP32 series employs a Tensilica Xtensa LX6 microprocessor in both dual-core and single-core variations and includes built-in antenna switches, RF balun, power amplifier, low-noise receive amplifier, filters, and power management modules. It is a successor to the ESP8266 SoC.

This ESP32 DevKit Board contains the ESP-WROOM-32 as the main module and some additional hardware to easily program ESP32 and connect with the GPIO Pins.

ESP32 Features

  • 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.

ESP32 Board Components

  • ESP-WROOM-32 Module
  • Two rows of IO Pins (with 15 pins on each side)
  • CP2012 USB – UART Bridge IC
  • Micro–USB Connector (for power and programming)
  • AMS1117 3.3V Regulator IC
  • Enable Button (for Reset)
  • Boot Button (for flashing)
  • Power LED (Red)
  • User LED (Blue – connected to GPIO2)
  • Some passive components

ESP32 - Development Kit with ESP32-WROOM-32 Module

An interesting point about the USB-to-UART IC is that its DTR and RTS pins are used to set the ESP32 into programming mode automatically (whenever required) and rest the board after programming.

Programming Environments

Suitable hardware like the ESP32 is more user-friendly because it can be programmed (writing code) in more than one way, meaning the ESP32 supports multiple programming environments.

Some of the most commonly used programming environments are:

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

Development Resources

Internet of Things Projects with ESP32: Build exciting and powerful IoT projects using the all-new Espressif ESP32Internet of Things Projects with ESP32: Build exciting and powerful IoT projects

The ESP32, a low-cost MCU with integrated Wi-Fi and BLE capabilities, comes with a variety of modules and development boards for building IoT applications efficiently. Wi-Fi and BLE are standard network stacks for Internet-of-Things applications providing cost-effective solutions for your business and project requirements.

This book is a fundamental guide for developing ESP32 programs and starts by explaining GPIO (General Purpose I/O) programming with sensor devices. The reader gets up to speed with ESP32 development through several IoT projects such as weather stations, sensor loggers, smart homes, Wi-Fi cams, and Wi-Fi wardriving. The reader learns how to use ESP32 boards to facilitate interactions between mobile applications and cloud servers, such as AWS.
By the end of this book, you'll have learned how to control a range of IoT projects using the ESP32 chip.

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