It is fully compatible with Nodemcu V3, but cheaper than it is. NodeMcu is an open source firmware and development tool that helps you prototype your IOT products in several Lua script lines.

    The ESP8285-based development kit integrates GPIO, PWM, IIC, 1-Wire and ADC into a single board.

    The fastest way with the NodeMCU firmware, for your development to provide support!

    Including USB-TTL, plug and play

    10 GPIOs, each GPIO can be PWM, I2C, 1 line

    FCC certification WI-FI module (coming soon)

    PCB antenna