Components Used in the Project

• Raspberry Pi 2B *1
• iR sensor EKMC1601111 *4
• servo MG996R *1
• Resistor - 10KΩ *2
• Resistor - 1KΩ *1
• Resistor - 50kΩ *4
• LED- YELLOW *1
• Electrolytic Capacitor - 100μF *1
• XH　connector *1

Description

My dog's name is Lara. Lara is smart and the toilet goes to the toilet in the hallway to get some done. In spring and autumn, the door between the living room and the corridor is open, so there is no problem. In summer and winter, we will turn on the air conditioner, so close the door. The door opens when you push it, so it's okay to go to the corridor, but when you come back to the living room, the door is closed and you can't enter the living room. To solve this problem, we have developed an automatic door. Its name is rara Door. Raspberry_Pi_2B is used to control the raraDoor, and it operates 24 hours a day. And, the following basic functions and attached functions are realized. Lara is smart and the toilet goes to the toilet in the hallway. In spring and autumn, the door between the living room and the corridor is open, so there is no problem. In summer and winter, the air conditioner is installed, so the door must be closed. When you go out, you can push it to open it, so there is no problem, but when you come back to the living room, the door is closed and you cannot enter the living room. To solve this problem, we have developed an automatic door. Its name is rara Door. The basic function of raraDoor is 1. When Lara passes in front of the sensor, the servo motor will operate and open the door. 2. There are 4 sensors, 3 for Lara detection and 1 for human detection. 3. Three sensors for Lara detection are controlled by 3C2 to improve reliability. 4. The human sensor is to prevent the servo motor from operating unnecessarily. With raraDoor, Lara is happy. And I'm happy too.