Last week I built my own variable power supply in class using the schematic below. Today we checked to see that it’s working.
Then I made this circuit using the LM555 Timer Chip that has been around for the past 60 years and many applications, and created a blinking LED circuit without any code 🙂 pretty sweet to see it working this way.
The circuit from up close:
The Schematic:
LM555
The components:
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