ESP-WROOM-32 Development Board: ESP32/ESP-32S Dual-Core MCU with 2.4GHz WiFi & Bluetooth, Integrated Antenna, RF AMP, Filter, AP/STA Support for Arduino IDE (ESP32 38P, 3PCS)

Good quality

I recently purchased a set of three ESP32 WROOM-32 modules, and I must say, I am thoroughly impressed with their performance and capabilities. These modules are a game-changer for anyone involved in IoT projects, offering a wide array of features and impressive specifications. Let's dive into some of the key specs of the ESP32 WROOM-32: - Dual-core Xtensa 32-bit LX6 microprocessor, running at up to 240 MHz - 520 KB of SRAM and 448 KB of ROM - 4 MB of flash memory for storing code and data - 802.11 b/g/n WiFi and Bluetooth 4.2 (BLE) connectivity - 34 GPIO pins, supporting various interfaces like SPI, I2C, UART, and more - 12-bit ADC and 8-bit DAC for analog signal processing - Cryptographic hardware acceleration for secure communication These specifications make the ESP32 WROOM-32 a powerhouse in the world of IoT. The dual-core processor enables efficient multitasking and high-speed execution, while the ample memory allows for complex applications and data storage. The built-in WiFi and Bluetooth connectivity make it easy to integrate these modules into wireless networks and communicate with other devices seamlessly. Upon receiving the modules, I ran a comprehensive health check on each one, testing various aspects such as chip information, memory, flash memory, WiFi connectivity, and internet connectivity. I'm thrilled to report that all three modules passed the tests with outstanding results, demonstrating their reliability and performance. Setting up the ESP32 WROOM-32 modules with the Arduino IDE is a breeze, even for beginners. Simply follow these steps: 1. Install the Arduino IDE on your computer. 2. Add the ESP32 board package URL to the Arduino IDE preferences. 3. Install the ESP32 board package through the Boards Manager. 4. Select the "NodeMCU-32S" board from the "Tools" menu. 5. Connect your ESP32 module to your computer via USB. 6. Select the appropriate port from the "Tools" menu. 7. Start programming and uploading your sketches to the ESP32 module. With its impressive specifications and ease of use, the ESP32 WROOM-32 opens up a world of possibilities for IoT projects. Whether you're building smart home devices, wearable sensors, industrial control systems, or anything in between, these modules provide the necessary computing power, connectivity, and flexibility to bring your ideas to fruition. In conclusion, I wholeheartedly recommend the ESP32 WROOM-32 modules to anyone embarking on IoT projects. Their powerful specs, reliable performance, and compatibility with the Arduino IDE make them an excellent choice for both beginners and experienced developers. These modules are a must-have for anyone serious about IoT development.

All 3 MCU's showed up in excelent condition. After installing the silicon labs update, all 3 MCU's were detectable on my PC. After selecting the ESP32 Dev Module and the proper com port in the Arduino IDE, all 3 MCU's were able to have sketches uploaded to them. Mine did not require the boot button to be pressed during uploading. I have tested both WiFi and BLE, both work without any issues. With the proper libraries OAT updates work reliably. The only cons to these boards is that they are not very (standard) bread board friendly, due to their width. It would be nice if the board could be narrowed up by one pin, so both side of the board can be accessed. Custom bread board can be used to access both sides. But, usually i side of the board is sufficient. More memory and usb-c would be great too. The cons are very small issues. These boards are an excelent value and I give these MCU's 5 stars. I would definatly buy these again.

Good

So far, I have no complains. It is a solid construction, well packed, run as well as other ESP32 I use and the code is no problem. Happy with it!