DOIT ESP32 DEV KIT v1: high resolution pinout and specs
The DoIt ESP32 DevKit V1 is a development board that features the ESP32 microcontroller from Espressif. It is designed for IoT (Internet of Things) projects and applications.
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The board includes Wi-Fi and Bluetooth capabilities, a variety of input/output interfaces including GPIO, analog inputs, UART, SPI, and I2C. It also has a standard form factor that makes it easy to embed in projects and a USB port for power and programming. The ESP32 DevKit V1 is popular among hobbyists and educators for its ease of use and versatility in various electronic projects.
- CPU: Xtensa dual-core (or single-core) 32-bit LX6 microprocessor, operating at 160 or 240 MHz and performing at up to 600 DMIPS
- Ultra low power (ULP) co-processor
- Memory: 520 KiB SRAM
- 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
- 2 × I²S interfaces
- 2 × I²C interfaces
- 3 × UART
- 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
- Power management:
- Internal low-dropout regulator
- Individual power domain for RTC
- 5μA deep sleep current
- Wake up from GPIO interrupt, timer, ADC measurements, capacitive touch sensor interrupt
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 functionalities 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.
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