Optional Lesson E
Basic Electronics
Part 2: Recreating and Building Real Circuits
- Objective:
To provide students with hands-on experience in recreating and building real circuits based on their virtual designs.
- Resources:
- Electronic components (resistors, LEDs, batteries, switches)
- Breadboards
- Jumper wires
- Multimeter
- Safety goggles
- Time: 60 min
- Component Selection and Preparation (10 min):
- Provide students with the necessary electronic components for recreating their virtual circuit designs.
- Explain how to identify the real components that correspond to the ones used in the Tinkercad designs.
- Demonstrate how to prepare the components by bending the leads and ensuring proper polarity for LEDs and batteries.
- Building Real Circuits (25 min):
- Instruct students to recreate their virtual circuit designs as real circuits on the breadboard.
- Guide them in placing the components on the breadboard, connecting them using jumper wires, and ensuring proper connections.
- Encourage them to follow the original design and pay attention to the component placements and orientations.
- Testing and Troubleshooting (20 min):
- Assist students in testing their real circuits using a multimeter to measure voltage, current, and resistance.
- Encourage them to compare the behavior of the real circuit with the simulated version in Tinkercad Electronics.
- Help students troubleshoot any issues they encounter, such as loose connections or incorrect component placements.
- Conclusion (5 mins):
- Summarize the key points covered in the session, including the translation of Tinkercad designs into real circuits.
- Emphasize the importance of accuracy, attention to detail, and safety when building real circuits.
- Assessment:
Observe students as they work on the virtual circuit design, noting their understanding of component selection, circuit building, and their ability to troubleshoot and test the real circuits.
- Homework:
Assign students to design a new circuit in Tinkercad Electronics and create a corresponding real circuit based on their design for the next session.
Example homework:
- Design and build a simple flashlight circuit using Tinkercad Electronics. Include a switch to turn the flashlight on and off.
- Create a circuit that makes an LED blink at a specific frequency. Experiment with different resistor values to adjust the blink rate.
- Design a circuit that plays a melody using a piezo buzzer. Explore different tones and create a simple musical composition.
- Build a circuit with multiple LEDs of different colors. Use a switch to control the LEDs, creating a traffic light simulation.
- Create a circuit that detects and reacts to light. Use a light-dependent resistor (LDR) to control the behavior of an LED.
- Design a circuit that uses a push-button switch to activate an alarm or a sound effect.
- Build a circuit with an RGB LED and experiment with different combinations of colors by adjusting the voltage levels.
- Create a circuit that measures temperature using a temperature sensor (such as a thermistor) and displays the temperature on an LCD screen.
