Yellow Light Circuit Diagram
Red Light Circuit Diagram
Alarm Circuit Diagram
Micro:bit
We built a basic logic circuit to build up our knowledge of how to make circuits in order to prepare for our future project
Series and Parallel Circuit Demonstration
Here is a demonstration of a parallel circuit made from foam board, 1 LED light, wiring, and a push button.
Here is a demonstration of a series circuit made from foam board, 2 LED lights, wiring, and 2 push buttons
Rock Paper Scissor Circuit
Then, we created a logic circuit for rock paper scissors to further understand gates and their purpose. We used lights as outputs to indicate the winner of the game.
Blueprint of circuit working with intergrated circuits.
Green light circuit and input switches & Yellow light circuit
Red light circuit, Alarm circuit, and alarm
To activate the alarm only when all the health risk indicators were present, we constructed a circuit using a breadboard and a range of components. Specifically, we used a 555 timer IC as the core of the timing mechanism, five resistors (including 1 K Ohm, 3.3 K Ohm, 470 Ohm, 39 Ohm, and a 100 K Ohm resistor) and three capacitors: 0.05 microfarad, 10 microfarad, and 100 microfarad. We also integrated a 2N3904 transistor to drive the speaker output and a battery clip to supply power. The speaker served as our alarm output, producing sound when the logic conditions were met.