ESP32 runs a dual-core Xtensa LX6 processor clocked up to 240 MHz with built-in WiFi and Bluetooth. ESP32 38 Pin WiFi Bluetooth Development Board brings these features into a 38-pin layout with accessible GPIO and onboard USB-to-UART. It handles web servers, MQTT communication, and sensor data processing in parallel. The esp32 microcontroller integrates ADC, DAC, PWM, and multiple serial interfaces on a single chip.
Pin spacing follows a breadboard-friendly format, so quick wiring is easy during testing. The esp32 38 pin board exposes more GPIO compared to smaller modules, which helps in projects requiring multiple sensors. One useful detail: certain GPIO pins affect boot mode, so incorrect wiring can stop the board from starting. Power input accepts 5V via USB but logic runs at 3.3V, so direct connection to 5V modules needs care.
Arduino IDE and ESP-IDF both support this esp32 wifi dev board without extra hardware. It works with displays, relays, and IoT platforms used by embedded developers. Engineering students building prototypes or final projects on this board. StemVolt provide this microcontroller board for quick access when projects move from testing to deployment.
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Features:
• Dual-Core Processing: Runs two cores at 240 MHz. Handles networking and application code without blocking tasks.
• Wireless Connectivity: Built-in WiFi and Bluetooth radios. Connects to routers and mobile devices without external modules.
• Analog Capability: Includes ADC and DAC channels. Reads analog sensors and generates simple analog signals.
• USB Programming: UART interface onboard for flashing firmware. No external programmer required during development.
Technical Specifications:
| Specification | Details |
|---|---|
| Microcontroller | ESP32 (32-bit) |
| CPU Frequency | Up to 240 MHz |
| Wireless | WiFi 2.4GHz + Bluetooth |
| Flash Memory | 4MB |
| GPIO Pins | 38 Pins |
| Operating Voltage | 3.3V |
| Input Voltage | 5V via USB |
| Interface | UART |
Applications:
- Smart home controller — connects sensors and controls appliances over WiFi
- Weather station — reads temperature and humidity sensors, uploads data online
- IoT dashboard — hosts local web server displaying real-time sensor values
- BLE device interface — communicates with smartphones using Bluetooth
Package Includes:
- 1 × ESP32 38 Pin WiFi Bluetooth Development Board
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