The chicken coop door opener is based on ESP8266 board and it is controlled remotely by the Blynk App. It uses geared motor with 30 RPM, which have enough power to move the door. It is controlled by L298N board. For the supply of the motor is used 12V 3A AC/DC module. The microcontroller is supplied by 5V linear regulator board. The whole system is placed in a hermetic plastic box.