Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Microcontroller | ESP32-WROOM-32 |
| Wi-Fi Standard | 802.11 b/g/n (2.4 GHz) |
| Bluetooth Version | Bluetooth v4.2 BR/EDR and BLE |
| CPU Frequency | Up to 240 MHz |
| Flash Memory | 4 MB |
| SRAM | 520 KB |
| GPIO Pins | 34 programmable GPIOs |
| Operating Voltage | 3.3V |
| Input Voltage | 5V via Micro-USB or VIN pin |
| Interface | UART, SPI, I2C, I2S, ADC, DAC |
Anonymous
Mar 29, 2026
Rating: 5/5
Reliable and Fast
I've burned out cheaper clones before, but this one runs cool even under heavy load. The USB-to-serial converter works flawlessly on both Windows and Linux.
Anonymous
Mar 14, 2026
Rating: 5/5
Best board for learning embedded systems
As a university student, this board offered the best balance of power and affordability. The community support is huge, making it easy to find libraries for sensors and displays.
Anonymous
Mar 13, 2026
Rating: 5/5
Perfect for IoT Prototyping
This board is exactly what I needed for my smart home project. The dual-core processor handles Wi-Fi and Bluetooth simultaneously without lag. Setup with the Arduino IDE was seamless.
Anonymous
Mar 10, 2026
Rating: 4/5
Great value, minor documentation gaps
Hardware quality is excellent for the price. Pinout is clear, and the build feels sturdy. I wish the included manual had more examples for the BLE features, but online communities fill the gap.
Anonymous
Mar 02, 2026
Rating: 5/5
Exceeded expectations
First time working with ESP32 and I am impressed. The speed compared to ESP8266 is night and day. Successfully uploaded my first weather station code in under an hour.
Anonymous
Mar 01, 2026
Rating: 4/5
Solid performance for robotics
Using this to control a small rover. The PWM output is stable, and the Wi-Fi range is surprisingly good indoors. Only downside is the micro-USB port feels a bit loose after repeated plugging.
Q: Is the Bluetooth Classic supported or only BLE?
A: This module supports both Bluetooth Classic (BR/EDR) and Bluetooth Low Energy (BLE), giving you flexibility for various connection types.
Q: Can it be powered directly via the VIN pin?
A: Yes, you can supply 5V to the VIN pin. The board has an onboard regulator that steps it down to 3.3V for the ESP32 chip.
Q: What is the maximum current draw per GPIO pin?
A: Each GPIO pin can source or sink up to 40mA. However, the total current drawn from all pins combined should not exceed the limits specified in the ESP32 datasheet to avoid damage.
Q: Is this board compatible with the Arduino IDE?
A: Yes, this NodeMCU ESP-32 board is fully compatible with the Arduino IDE. You just need to install the ESP32 board manager package.
Q: Does this support Deep Sleep mode for battery projects?
A: Absolutely. The ESP32 supports multiple low-power modes including Deep Sleep, which can reduce current consumption to microamps, ideal for battery-operated devices.
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