The ESP-32E DevKitC V4 38-Pin Development Board is a powerful and flexible microcontroller development board that uses the ESP-32E module from Espressif Systems. It is one of the most popular platforms for making wireless embedded projects because it has a lot of processing power, can connect to wireless networks, and has a lot of peripherals on a small PCB.
The most important part of this board is the ESP-32E chip, which is based on the esp wroom 32. It has a 32-bit dual-core processor, WiFi at 2.4 GHz, and Bluetooth 4.2 all in one. This is very helpful for making things that need to process data right away and send it wirelessly without needing to add extra radio modules.
The 38-pin layout of this esp32 devkitc v4 exposes almost every available GPIO pin of the ESP32 chip, including multiple ADC channels, two DAC outputs, touch-sensitive inputs, and hardware interfaces like SPI, I2C, and UART. This pin density makes it practical for connecting temperature and heat sensor, displays, motor drivers, and communication modules simultaneously.
The board includes an onboard USB-to-UART bridge, so you can connect it directly to a computer using a micro USB cable and start programming immediately through Arduino IDE or ESP-IDF. The 4MB integrated flash is sufficient for most firmware applications including web servers, sensor loggers, and BLE peripheral implementations.
From an espressif ecosystem perspective, this board is fully supported by official documentation, libraries, and community resources, which reduces the learning curve significantly for new users.
Available through StemVolt, this board is a practical choice for IoT project developers and robotics developers who need a reliable, wireless-capable development platform for real-world builds projects.
Related Product:
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Checkout the ESP32-WROOM Development Board
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Features:
- The esp32 module integrates WiFi and Bluetooth on one chip, removing the need for external wireless hardware
- 38 GPIO pins support analog input, digital I/O, PWM output, and multiple hardware communication protocols
- Onboard USB-to-UART interface allows direct programming from any computer without an external programmer
- 4MB flash memory stores firmware, file systems, and application variables with room for over-the-air update support
- Compatible with development environments — Arduino IDE, MicroPython and ESP-IDF all support this board
Technical Specifications:
| Specification | Details |
|---|---|
| Development Board | ESP32E DevKitC V4 38 Pin |
| Wireless Connectivity | 2.4 GHz WiFi 802.11 b/g/n, BT 4.2 |
| Bluetooth | v4.2 BLE |
| Flash Memory | Integrated 4MB |
| Interface Support | USB-to-UART, UART, SPI, I2C |
| Pin Count | 38-Pin Berg Header |
| Operating Voltage | 5V |
| Power Consumption | Low Consumption |
Applications:
- Build IoT automation systems — control lights, fans, and appliances wirelessly using the onboard WiFi capability
- Wireless sensor networks — build temperature, humidity, and air quality monitoring nodes using the esp32 devkitc as the central controller
- 2.4GHz WiFi and Bluetooth projects — develop BLE peripherals, WiFi web servers, and dual-mode communication systems
- Robotics developers — use this board as the wireless brain of autonomous robots requiring sensor fusion and remote control
- Educational lab projects — ideal for engineering students and electronics learners building their WiFi or Bluetooth enabled microcontroller project
Package Includes:
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1 x ESP 32E DevKitC V4 38-Pin Development Board
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