For the copy jam project we had to make a copy jam detector. The copy jam detector needs to stop the motor and set off a buzzer whenever two of the sensors are blocked by paper (unless there is one sensor between the two) meaning when there are two pieces of paper too close together in the copier. Once the jam is fixed the motor runs and the buzzer will stop once the button is pressed to show it was cleared.
Diagrams
explanation of parts and functions
- Resistors limit the amount of voltage so it doesn't harm any of the components.
- The combination logic circuit detects if there is a jam or not. This system uses lights and sensors, so when the light is covered (paper going through it) it blocks the light.
- The flip flop makes the buzzer stay on until the reset is hit, not just when the jam is detected. The light stays on and motor off until the jam is fixed.
-LED and Buzzer, The LED and buzzer both go off when a jam is detected, but the LED turns off when the jam is fixed and the buzzer only turns off when cleared. This is because of the flip flop.
conclusion
For other projects we have done we were by ourselves and not in pairs. Being in pairs is helpful because you have 2 brains so if you do not know something the other person probably will and vise versa which makes problem solving a lot easier. It also make wiring things easier because one person could wire while the other looks and diagram and tells you where to wire so you don't have to go back and forth and get mixed up in the two. For this project we also had to make our own expression, circuit, and then physically make the copy jam. So we multiple things we have learned like making truth tables, boolean algebra, k-mapping, multisim, wiring, and programming chips. This project also had pre-made components like the light sensors, motor, and lights that made it interesting to build this project to see how all the pieces are put together to make a copy jam detector.
Things I learned-
- Using lights and sensors and how to connect them to a circuit on a breadboard
- How to make lights and sensors part of a circuit on multisim
- I learned how to troubleshoot better but we could not find the problem with the buzzer