7Semi ESP32-DEVKIT-D ESP32 Wifi BLE Development Board

The 7Semi ESP32-DEVKIT-D is a versatile Wi-Fi and Bluetooth (BLE) enabled development board built around the powerful Espressif ESP32 SoC. Featuring a dual-core 32-bit processor, integrated Wi-Fi (802.11 b/g/n), and Bluetooth 4.2 (Classic + BLE), this board provides exceptional performance for IoT, automation, and embedded applications. The module includes multiple GPIOs, ADCs, DACs, UART, SPI, I²C, and PWM interfaces, making it suitable for a wide range of projects. With a built-in USB interface for programming and debugging, the ESP32-DEVKIT-D offers an easy-to-use platform for rapid prototyping and product development.

Technical Specifications:

• Microcontroller: Espressif ESP32-WROOM-32 module
  
• CPU: Dual-core 32-bit Xtensa LX6 @ up to 240 MHz
  
• Wireless Connectivity:
   – Wi-Fi: IEEE 802.11 b/g/n (2.4 GHz)
   – Bluetooth: v4.2 BR/EDR and BLE
  
• Flash Memory: 4 MB (SPI flash)
  
• SRAM: 520 KB internal
  
• Operating Voltage: 3.3 V
  
• Input Voltage: 5 V via USB or VIN pin
  
• GPIO Pins: 30+ multifunctional I/O pins
  
• Communication Interfaces: UART, SPI, I²C, I²S, PWM, ADC, DAC, CAN
  
• ADC Channels: 12-bit (up to 18 channels)
  
• DAC Channels: 2 (8-bit resolution)
  
• USB Interface: Micro USB for programming and power
  
• Logic Level Compatibility: 3.3 V
  
• Power Consumption:
   – Deep Sleep: <10 µA
   – Active Mode: ~80–240 mA (depending on usage)
  
• Antenna: Onboard PCB antenna
  
• Operating Temperature: -40°C to +85°C
  
• PCB Type: High-quality FR-4 with 2.54 mm pin headers

Features:

• Dual-core ESP32 processor with integrated Wi-Fi and Bluetooth 4.2
  
• High-performance and low-power design for IoT and embedded systems
  
• Onboard USB-to-UART converter for easy programming and debugging
  
• Rich set of peripheral interfaces (GPIO, ADC, DAC, SPI, I²C, UART, etc.)
  
• Supports multiple power modes for battery-powered applications
  
• Wide voltage input range via USB or external power source
  
• Compatible with Arduino IDE, ESP-IDF, MicroPython, and PlatformIO
  
• Built-in PCB antenna for stable wireless connectivity
  
• Compact and robust design suitable for prototype and production use
  
• Ideal for rapid IoT and smart device development

Applications:

• IoT and cloud-connected devices
  
• Smart home automation and building control systems
  
• Wireless data acquisition and sensor networks
  
• Industrial and environmental monitoring systems
  
• Robotics and automation projects
  
• BLE-enabled portable devices and wearables
  
• Remote control and wireless communication systems
  
• Edge computing and AI-based IoT devices
  
• Educational and research projects in embedded systems
  
• Wi-Fi/Bluetooth-based product prototyping and testing