The project is called Automated Coin Box. The project was designed to understand the concept of counting and storing the number of coins accurately and easily. We use an opto-isolator as sensors that detect metal objects via infrared radiation and the object will be declared on the LCD. LCD display will play a key role for the current value and the amount of money that is inside the tube. We choose Unity Kindergartens in residential areas fire regulations to implement the project Coin Box Automated us. Our target is children aged 4 years up to 6 years. This is because in addition to calculating and storing a coin into the tube, they can adapt this process to their learning process. To complete the circuit, we draw circuit “power supply” circuit “sensor opto-isolator” using proteus software and PCB Wizard 8.0. This allows us to paint because there are components that we use in both this software. In addition, we also use the software to set up the Arduino UNO coding our project. If the project is carried out using the software Arduino Uno, of course we need a skilled and know the function displayed on the coding.