Device Specifications

Processors

• CPU: Xtensa dual-core (or single-core) 32-bit LX6 microprocessor
  • Operating at 160 or 240 MHz
  • Performance: Up to 600 DMIPS
• Ultra Low Power (ULP) Co-Processor: Integrated for power-efficient operations

Memory

• SRAM: 520 KiB

Wireless Connectivity

• Wi-Fi: 802.11 b/g/n
• Bluetooth: v4.2 BR/EDR and BLE (shares the radio with Wi-Fi)

Peripheral Interfaces

• 12-bit SAR ADC: Up to 18 channels
• 2 × 8-bit DACs
• 10 × Touch Sensors: Capacitive sensing GPIOs
• 4 × SPI Interfaces
• 2 × I²S Interfaces
• 2 × I²C Interfaces
• 3 × UART Interfaces
• SD/SDIO/CE-ATA/MMC/eMMC Host Controller
• SDIO/SPI Slave Controller
• Ethernet MAC Interface: With dedicated DMA and IEEE 1588 Precision Time Protocol support
• CAN Bus 2.0
• Infrared Remote Controller: TX/RX, up to 8 channels
• Motor PWM
• LED PWM: Up to 16 channels
• Hall Effect Sensor
• Ultra Low Power Analog Pre-Amplifier

Security Features

• IEEE 802.11 Standard Security: WFA, WPA/WPA2, and WAPI supported
• 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)

Power Management

• Internal Low-Dropout Regulator
• Individual Power Domain: For RTC
• Deep Sleep Current: 5μA
• Wake Up Sources:
  • GPIO interrupt
  • Timer
  • ADC measurements
  • Capacitive touch sensor interrupt

Pinout Description

The DoIt ESP32 DevKit V1 features a comprehensive pinout that caters to a wide range of functionalities. Here’s a brief overview of its pinout:

• GPIO Pins: The board provides numerous General Purpose Input/Output (GPIO) pins which can be used for various digital input/output functionalities. These pins also support additional features like PWM, I2C, SPI, and more.

• Analog Inputs: Several pins on the ESP32 DevKit V1 are capable of reading analog signals, making them suitable for interfacing with analog sensors.

• 3.3V and GND Pins: These are used to power external components or sensors.

• 5V and GND: The board can also provide a 5V output, which is useful for powering external modules that require more power.

• VIN: This is the input voltage pin, which can be used to power the board when not using the USB connection.

• EN: This is the enable pin. It’s used to reset the microcontroller.

• TX/RX: These pins are used for serial communication.

• SPI Interface: The board has pins for SPI communication, enabling fast data transfer with peripherals like displays or flash memory.

• I2C Interface: The ESP32 DevKit V1 supports I2C communication, which is widely used for interfacing with sensors and other peripherals.

• Touch Sensor Pins: Some GPIOs can be used as capacitive touch inputs, offering an interface for touch-based input devices.

• VP/VN: These are the pins for the internal hall effect sensor.

• USB-to-UART Bridge: This feature is crucial for programming the ESP32 using a USB cable and also for serial communication with a computer or other USB host devices.

This board’s flexibility with various protocols and interfaces makes it ideal for a wide range of IoT and embedded system applications.