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The ESP32 is a very inexpensive versatile chip designed for efficient Wi-Fi and Bluetooth including BLE.  It has a powerful 240MHz dual core microcontroller with 520K of SRAM.  It is designed for mobile devices so it has ultra-low power consumption.  The ESP32 chip has 32 GPIO pins with support for I2C, I2S, SPI and UART.  In addition it has multiple analog to digital channels and digital to analog, hardware accelerated encryption, pulse width modulation, capacitance touch interfaces and a lot more.

To access all the features on the ESP32, one must have access to all its pins. The ESP32 breakout boards make this possible by providing a breadboard-friendly pin configuration that developers can use to easily interface the ESP32 with other devices and components. In addition to this, the breakout boards provide all additional circuitry that the ESP32 needs to function. All these things expedite the prototype development process, reducing the cost and time it takes to build a project using the ESP32 SoC.

This breakout board is designed to offer embedded system developers access to all the features of the ESP-WROOM-32 SoC. You can use it to build prototypes for projects that require Bluetooth connection or projects based on the Internet of Things. It is ideal for professionals as well as beginners since it is easy to setup and program, thanks to the additional essential components that it comes with.   

Interfacing the ESP32 breakout board with other devices and peripherals is an easy task. This is because of its breadboard-friendly pin configuration. When mounted on a breadboard, the ESP-32S leaves an empty row on either side of the board, providing access to all of its pins. On the downside, due to its smaller size, the pin numbers are provided on the bottom part of the board. So, it is not easy for one to identify the pin numbers when the ESP-32S is mounted on a breadboard.

Programming of the ESP-32S board is done via a USB cable, thanks to the CP2102 USB Bridge that is available on the board. The board can be programmed using NodeMCU Lua and there are several resources provided to guide you on how to get started. The resources provide information on how to build for ESP32flashing firmwareschematics and the Lua SDK. These resources are provided by the company that has designed the ESP-32S breakout board. This saves time that would have been spent searching online for resources.



Inside the breakout board ESP32
ESP32 Breakout board Features 
  • CPU and memory
    - Xtensa® dual-core 32-bit LX6 microprocessor(s), – 600 DMIPS
    - 520 kB SRAM
    - Main power: 2,3 V ÷ 3,6 V (VIN) or via micro USB
  • Wi-Fi
    - Frequency: 2,4 GHz - 2,5 GHz
    - 802.11 b/g/n HT40 Wi-Fi transceiver, baseband, stack e LwIP
    - Sniffer / Station / SoftAP and Wi-Fi direct mode
    - Max speed 150 Mbps@11n HT40, 72 Mbps@11n HT20, 54 Mbps@11g e 11 Mbps@11b
    - Max TX power 19,5 dBm@11b, 16,5 dBm@11g, 15,5 dBm@11n
    - Sensibility: -97 dBm
    - Protection: WEP, WPA/WPA2 PSK/Enterprise
    - Encryption: AES / SHA2 / ECC / RSA-4096
  • Bluetooth
    - Version: v4.2 BR/EDR e BLE
    - RX NZIF: -97dBm
    - TX class 1, class 2 e class 3 
    - TX power +12dBm
    - Multi-connection Bluetooth and BLE

  • Clocks and Timers:
    - Internal oscillator: 8 MHz 
    - Internal oscillator RC
    - External oscillator: 2 MHz ÷ 40 MHz
    - External oscillator: 32 kHz for RTC 
    - 2 Timer
    RTC watchdog
  • 34 GPIO:
    - SAR ADC @12 bit for 18 ch
    - 2 A/D @8 bit
    - 10 touch sensor
    - Temperature sensor
    - 3 pins for SPI, 2 pins for I2S, 2 pins for I2C, 2 pins for DAC, 3 pins for UART
    - 1 host (SD / eMMC / SDIO), 1 slave (SDIO / SPI)
    - MAC Ethernet interface with DMA and IEEE 1588 support
    - CAN 2.0
    - IR (TX / RX)
    - Motor PWM, LED PWM (max 16 ch)
    - Hall sensor
  • Security:
    - Supported IEEE 802.11 standard security features, including WFA, WPA / WPA2, and WAPI
    - Safe Boot​
    - Flash Encryption
    - 1024 bit OTP, up to 768 bits for customers​
    - Cryptographic hardware acceleration: AES-HASH (SHA-2) library-RSA-ECC-Random Number Generator (RNG)
Documentation for ESP32 board

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ESP-WROOM-32 ESP32 ESP-32S Development Board

  • Price: 11.00€

Tags: ESP32, WIFI, bluetooth, esp32s, ESP-WROOM-32, esp-32

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