Progress Monitoring Mouse

In this project I aimed to build a module consists of lights showing the working state of the mouse. When the mouse is transmitting data, show red light while the mouse is not transmitting data, show blue light. Thus I first design the logic diagram of the logic module according to the knowledge I learnt during the class. Then I went to the maker space and managed to built a logic circuit. Then I used the multimeter to detect which pin should be the input for my design. I found out that there is a chip-selecting signal input for the cpu and it is high when the mouse is transmitting signal, so I connected the signal to be my input. After searching for the diagrams for the chips used inside the mouse, I found the source of power and ground. When I connected them to my design, the project was done.