ESP32 – Development board with Wi-Fi, Bluetooth and USB Type-C connector

It supports data rates up to 150 Mbps and an antenna output power of 20.5 dBm for excellent wireless coverage. Sleep-mode consumption is just 5 µA, which makes it ideal for low-power applications.

The board provides interfaces for temperature sensors, touch sensors, SD card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S and IR. This version has a USB-C connector in place of the traditional micro USB, for a more stable power supply and more reliable data communication. A Boot button and a Reset button complete the package.

It can be used in a wide range of applications, including wearables, low-power sensor networks, audio headsets, smart plugs, home automation, mesh networks, industrial wireless control and portable electronics. Dimensions (mm): 51.45 x 28.33 x 14.

Programmable through the Arduino IDE, it also includes interpreters for command processing in languages such as LUA.

• CPU and memory
  – Xtensa® single-/dual-core 32-bit LX6 microprocessor(s), up to 600 DMIPS
  – 448 kB ROM
  – 520 kB SRAM
  – 16 kB SRAM in RTC
  – 4 MB Flash memory
• Wi-Fi
  – 802.11 b/g/n HT40 Wi-Fi transceiver, baseband, stack and LwIP
  – Sniffer / Station / SoftAP modes and Wi-Fi direct mode
  – Maximum data rate 150 Mbps@11n HT40, 72 Mbps@11n HT20, 54 Mbps@11g and 11 Mbps@11b
  – Maximum transmit power 19.5 dBm@11b, 16.5 dBm@11g, 15.5 dBm@11n
  – Minimum receiver sensitivity -97 dBm
• Bluetooth
  – Compliant with the Bluetooth v4.2 BR/EDR and BLE specifications
  – NZIF receiver with -97dBm sensitivity
  – Class 1, class 2 and class 3 transmitter
  – Transmit power +12dBm
  – NZIF receiver with -97dBm sensitivity
  – Bluetooth and BLE multi-connections
• Clocks and Timers:
  – 8 MHz internal oscillator with calibration
  – Internal RC oscillator with calibration
  – 2 MHz to 40 MHz external oscillator
  – 32 kHz external oscillator for the RTC, with calibration
  – Two timer groups, each including 2 x 64-bit timers and 1 x main watchdog
  – RTC watchdog
• Peripheral interface (25 GPIOs):
  – 12-bit SAR ADC with up to 18 channels
  – 2 x 8-bit D/A converters
  – 10 touch sensors
  – Temperature sensor
  – 3 for SPI, 2 for I2S, 2 for I2C, 2 for DAC, 3 for UART
  – 1 host (SD / eMMC / SDIO), 1 slave (SDIO / SPI)
  – Ethernet MAC interface with dedicated DMA and IEEE 1588 support
  – CAN 2.0
  – IR (TX / RX)
  – Motor PWM, LED PWM with up to 16 channels
  – Hall sensor
  – Ultra-low-power analogue pre-amplifier
• Security:
  – Standard IEEE 802.11 security features supported, including WFA, WPA / WPA2 and WAPI
  – Secure boot
  – Flash encryption
  – 1024-bit OTP, up to 768 bits for customers
• Programming:
  – Press the “boot” button while programming.

• ESP32 details
• ESP32 Forum
• ESP32 Datasheet
• Installation procedure for the Arduino IDE