We just received a bunch of these NodeMCU boards. Everything you need to develop apps for the Espressif ESP8266 SoC is here, including an ESP-12F module from AI Thinker. This evaluation board breaks out the Tensilica 32-bit MCU’s programmable I/O pins, making them available to interface with real-world IoT applications.
I’ve added the second USB serial port dedicated to debugging info. As you can see, the screen on the left is the programming console showing a scan of local WiFi access points.
The screen on the right is the debug console showing useful information to aid development. The module comes pre-loaded with the Espressif SDK V1.5.2 firmware.
More on this exciting new project soon.