So this is my project about smart trash bin and in here there is sensor for make the trash bin open, and if we want to make the sensor can dectect, se shuld to conding in pictoblod to arduino, Arduino is an open-source hardware and software platform used to create various electronic projects. Arduino consists of a microcontroller (such as the ATmega328 on the Arduino Uno) and an easy-to-use programming environment (Arduino IDE). and if you ask what is sensor, A sensor is a device used to detect or measure a physical condition in the surrounding environment and convert it into a signal that can be processed by an electronic system, such as an Arduino or computer.