2025 - 2026 Section 4 - Integrated Circuits
Resources and Videos
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In this class, we introduce Integrated Circuits and build Activity 1 using the 555 timer.
In this class, we review the tone generator circuit from Activity 1. We then learn more about how the 555 timer uses a capacitor and resistor to keep time. We then build Activity 3 and learn how the 555 can behave as a one-shot timer.
Homework: Build working versions of Activities 1 and 3 and email brian@superchargedscience.com if you need help. Then draw schematics for Activities 1 and 3.
In this class, we learn more about how to use the 555 in a one-shot circuit and we review Activity 3. We also learn more about each pin on the 555 IC and how to properly connect each pin.
Homework: Build Activity 4 – Astable Multivibrator and have it ready for the next class.
In this class, we build Activity 4 and learn how to use the 555 IC as an astable multivibrator.
Homework:
Rebuild Activity 4 from scratch.
Draw a copy of the schematic for Activity 4.
In this class, we learn about sound waves and how they relate to electrical signals. We also learn how a dual power supply allows us to simulate positive and negative signals in relation to a common point.
Homework:
Be sure to drain your capacitors by building an LED tester circuit using an LED and a resistor
Gather your parts for Activity 7 and have them ready to go.
In this class, we build the audio amplifier in Activity 7. This leads into a lesson on operational amplifiers and troubleshooting in the next pair of classes.
In this class, we review Activity 7 and then learn about operational amplifiers. We conclude with a review of troubleshooting tips.
In this class, we cover resources to continue your electronics learning experience. We then go through the Section 4 review quiz.
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