This a professional PCB that helps you to shrink your Arduino project and make it permanent. Featuring a compact design, this board will house an Arduino circuit, including a Wifi chip, I2C connection for RTC, headers for Arduino shields and room for your project's additional components. This board is perfect for your IOT projects, having the best support for the ESP8266 chip: it has a robust 3.3V voltage regulator, a logic level conversion IC (CD4050) and a switched connection to FTDI FT232RL chip adapter.











