Lolin32

LOLIN32 is a development board built around the Espressif ESP32 family, produced by the Lolin brand. It is designed for rapid prototyping of Internet of Things projects, offering integrated Wi‑Fi and Bluetooth in a compact, hobbyist-friendly package. The board commonly uses the ESP32-WROOM-32 module, providing a dual‑core 32‑bit processor, IEEE 802.11 b/g/n Wi‑Fi and Bluetooth (Classic and BLE), and a broad set of I/O options.

Hardware features and interfaces include USB connectivity for power and programming, a 3.3V regulator, and a USB‑to‑serial bridge. The board exposes digital I/O pins, as well as interfaces such as UART, SPI, I2C, PWM, ADC, and DAC. Boot and Enable buttons are typically present to control flash programming and reset modes. Operating voltage is 3.3V, with most pins designed for 3.3V logic. Flash memory size varies by revision, commonly ranging from a few to several tens of megabytes depending on the specific model.

Software and development support are broad: LOLIN32 boards can be programmed with the Arduino IDE, Espressif’s ESP-IDF, or MicroPython. The board is suitable for a wide range of applications, including home automation, sensor networks, wearables, and other edge devices that require Wi‑Fi or Bluetooth connectivity.

Variants and availability notes indicate that multiple revisions exist, sometimes with different flash sizes or header configurations. As with other ESP32 boards, real-world behavior depends on the exact revision and flashed firmware, but the platform is widely supported and well documented in community resources.