Development board Wi-Fi + Bluetooth (ESP32)

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Created by Espressif Systems, ESP32 is a low-cost, low-power system on a chip (SoC) series with Wi-Fi & dual-mode Bluetooth capabilities! The ESP32 series of chips presently includes ESP32-D0WDQ6 (and ESP32-D0WD), ESP32-D2WD, and ESP32-S0WD. At its heart, there's a dual-core (or single-core) Tensilica Xtensa LX6 microprocessor with a clock rate of up to 240 MHz. ESP32 is highly integrated with built-in antenna switches, RF balun, power amplifier, low-noise receive amplifier, filters, and power management modules. Engineered for mobile devices, wearable electronics, and IoT applications, ESP32 achieves ultra-low power consumption through power saving features including fine resolution clock gating, multiple power modes, and dynamic power scaling.



  • Main Processor: Tensilica Xtensa 32-bit LX6 microprocessor
    • Cores: 2 or 1 (depending on variation)
      All chips in the ESP32 series are dual-core except for ESP32-S0WD, which is single-core.
    • Clock Frequency: up to 240 MHz
    • Performance: up to 600 DMIPS
  • Wireless Connectivity
    • Wi-Fi: 802.11 b/g/n/e/i (802.11n @ 2.4 GHz up to 150 Mbit/s)
    • Bluetooth: v4.2 BR/EDR and Bluetooth Low Energy (BLE)
  • Low Power: Low power options utilize the ULP co-processor to ensure that you can still do ADC conversions, computation, and level thresholds while in deep sleep.
  • Memory
    • Internal Memory
      • ROM: 448 KiB
        For booting and core functions.
      • SRAM: 520 KiB
        For data and instruction.
      • RTC Slow SRAM: 8 KiB
        For co-processor accessing during deep-sleep mode.
      • RTC Fast SRAM: 8 KiB
        For data storage and main CPU during RTC Boot from the deep-sleep mode.
      • eFuse: 1 Kibit
        Of which 256 bits are used for the system (MAC address and chip configuration) and the remaining 768 bits are reserved for customer applications, including Flash-Encryption and Chip-ID.
      • Embedded Flash: 0 MiB or 2 MiB (depending on variation)
        ESP32-D2WD has 2 MiB of embedded flash, internally connected via GPIO16, GPIO17, SD_CMD, SD_CLK, SD_DATA_0 and SD_DATA_1. The other chips in the ESP32 series have no embedded flash.
    • External Flash and SRAM: ESP32 without embedded flash supports up to 4 × 16 MiB of external QSPI flash and 8 MiB SRAM with hardware encryption based on AES to protect developer's programs and data.
      ESP32 chips with embedded flash do not support the address mapping between external flash and peripherals.
  • Peripheral Input/Output: Rich peripheral interface with DMA that includes capacitive touch, ADCs (analog-to-digital converter), DACs (digital-to-analog converter), I²C (Inter-Integrated Circuit), UART (universal asynchronous receiver/transmitter), CAN 2.0 (Controller Area Network), SPI (Serial Peripheral Interface), I²S (Integrated Inter-IC Sound), RMII (Reduced Media-Independent Interface), PWM (pulse width modulation), and more.
  • Security
    • IEEE 802.11 standard security features all supported, including WFA, WPA/WPA2 and WAPI
    • Secure boot
    • Flash encryption
    • 1024-bit OTP, up to 768-bit for customers
    • Cryptographic hardware acceleration: AES, SHA-2, RSA, elliptic curve cryptography (ECC), random number generator (RNG)

Tutorial ESP32 in Arduino


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Development board Wi-Fi + Bluetooth (ESP32)

Development board Wi-Fi + Bluetooth (ESP32)

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