Description
ESP 32 WiFi + BLE Bluetooth 4.0 IoT Development Node MCU Board
The ESP32 WROOM WiFi BLE Bluetooth IoT NodeMCU Board is a powerful and versatile development platform designed for IoT, automation, embedded systems, and wireless communication projects. Powered by Espressif’s ESP32 chipset, it integrates dual-core processing, WiFi, and Bluetooth Low Energy (BLE) in a compact and energy-efficient design.
These boards support multiple USB-to-UART controllers such as CP2102, CH9102X, and CH340C, along with Micro-USB and Type-C interfaces. Variants are available with different pin counts, onboard OLED display, and ESP32-D or ESP32-U modules to suit a wide range of applications including prototyping, product development, and educational use.
Key Features
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Dual-core ESP32 processor with WiFi and BLE
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Integrated ESP32-WROOM / ESP32-D / ESP32-U modules
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Supports Micro-USB and Type-C connectors
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Multiple USB-to-UART options: CP2102, CH9102X, CH340C
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Available in 26-pin, 30-pin, and 38-pin layouts
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Select variants include onboard OLED display
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Compatible with Arduino IDE, ESP-IDF, MicroPython
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Ideal for IoT, robotics, automation, and wireless projects
Applications
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IoT and smart home devices
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Wireless sensor networks
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Home automation
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Robotics and automation projects
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Data logging and cloud connectivity
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Embedded product prototyping
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Educational and learning platforms
Available Variants
ESP32 NodeMCU Variants List
| Variant Name | USB Interface | USB-UART Chip | Pins | Notes |
|---|---|---|---|---|
| ESP32-CP2102-MicroUSB-30Pins | Micro-USB | CP2102 | 30 | Standard compact board |
| ESP32-CP2102-TypeC-30Pins | Type-C | CP2102 | 30 | Modern USB-C connector |
| ESP32-CP2102-MicroUSB-38Pins | Micro-USB | CP2102 | 38 | More GPIO access |
| ESP32-CP2102-TypeC-38Pins | Type-C | CP2102 | 38 | Full-featured GPIO layout |
| ESP32-CH9102X-MicroUSB-30Pins | Micro-USB | CH9102X | 30 | Cost-effective UART |
| ESP32-CH9102X-MicroUSB-38Pins | Micro-USB | CH9102X | 38 | Expanded I/O |
| ESP32-CH340C-MicroUSB-38Pins | Micro-USB | CH340C | 38 | Widely supported USB-UART |
| ESP32-CH340C-TypeC-30Pins | Type-C | CH340C | 30 | Compact Type-C board |
| ESP32D-CP2102-OLED-MicroUSB-26Pins | Micro-USB | CP2102 | 26 | Onboard OLED display |
| ESP32U-CH9102X | Varies | CH9102X | Varies | External antenna support |
| ESP32D-CH9102X | Varies | CH9102X | Varies | Integrated antenna |
| ESP32U-CP2102 | Varies | CP2102 | Varies | External antenna version |
| ESP32D-CP2102 | Varies | CP2102 | Varies | Integrated antenna version |
Specifications
| Parameter | Details |
|---|---|
| MCU | ESP32 (Dual-Core) |
| Wireless | WiFi 802.11 b/g/n, Bluetooth, BLE |
| Operating Voltage | 3.3V |
| Input Voltage | 5V via USB |
| Clock Speed | Up to 240 MHz |
| Flash Memory | Typically 4MB |
| Programming Support | Arduino IDE, ESP-IDF, MicroPython |
| GPIO Count | Depends on variant (26 / 30 / 38 pins) |
| USB Interface | Micro-USB or Type-C |
