ESP8266 Internet NodeMcu Lua WIFI Development Board Module USB CP2102 Node Mcu
ESP8266 full IO mouth leads directly download without reset. Use CP2102 chip, not CH341 chip;. USB interface is more firm;. Power input: 4.5V ~ 9V (10VMAX), USB-powered. Working temperature: -40 ℃ ~ + 125 ℃.