•NodeMCU is built based on the mature ESP8266 technology to take advantage the abundant resources available on the web.
•11 digital input/output pins, all pins have interrupt/pwm/12C/one-wire supported(except DO)
•1 analog input(3.3V max input)
•A Micro USB connection
•The microcontroller integrates a Tensilica L 106 32-bit RISC processor, which achieves extra-low power consumption and reaches a maximum clock speed of 160 MHz.
