The ESP32 38-Pin Development Board is a powerful Wi-Fi and Bluetooth–enabled microcontroller board designed for IoT, automation, robotics, and embedded systems. Based on the ESP32 SoC, it combines dual-core processing, rich peripherals, and wireless connectivity in a developer-friendly form factor with extensive GPIO access. This board is ideal for rapid prototyping as well as production-ready designs requiring reliable wireless communication and real-time control.
Core Board Specifications
• Microcontroller: ESP32
• CPU Architecture: Dual-core 32-bit Xtensa
• Wireless Connectivity: Wi-Fi + Bluetooth
• GPIO Availability: 38-pin header layout
Electrical & Interface
• Operating Voltage: 3.3 V
• Input Voltage: 5 V via USB / VIN
• Digital I/O Pins: Up to 34 GPIOs (function-dependent)
• Analog Inputs: 12-bit ADC channels
• Communication Interfaces: UART, SPI, I²C, I²S, PWM
• USB Interface: Onboard USB-to-Serial converter
• Programming: USB via Arduino IDE / ESP-IDF
Performance Characteristics
• Dual-core processing for multitasking
• Integrated TCP/IP stack for internet connectivity
• Supports real-time control and data processing
• Low-power modes for energy-efficient applications
Physical Characteristics
• Board Type: ESP32 development board
• Pin Layout: 38-pin header
• USB Connector: Micro-USB / Type-C (variant dependent)
• Compact and breadboard-friendly design
Compatibility
• Arduino IDE
• ESP-IDF
• PlatformIO
• Sensors, displays, relays, motor drivers
• Cloud and IoT platforms
Key Advantages
• Built-in Wi-Fi and Bluetooth
• Large number of GPIOs
• Strong processing capability
• Excellent community and library support
Technical Insights
• GPIOs are 3.3 V logic only (not 5 V tolerant)
• Some pins have boot-mode functions
• ADC accuracy depends on calibration
• External antenna improves wireless range (variant dependent)
Applications
• IoT and smart home devices
• Industrial and home automation
• Robotics and motor control
• Data logging and monitoring
• Wireless embedded systems
Pro Tip
• Avoid using strapping pins incorrectly during boot
• Use stable 5 V supply for Wi-Fi reliability
• Enable deep sleep for battery-powered projects
• Refer to pinout before hardware design
Package Includes
• 1 × ESP32 38-Pin Development Board