Education:Project 3 - Blinking Your LED & Breadboards
From Stuy Techtonics Wiki
Contents |
Materials
- (1x) LED (Visible)
- (1x) Breadboard
- Solid core wire
- Wire strippers
- Any 555 timer chip. (Example: LM555CM. Any other "555" chip works.)
- (1x) 4.7k Resistor
- (1x) 100K Resistor
- (1x) 1k Resistor
- (1x) 1 uF Capacitor
Overview
In this project: You will learn how to breadboard, what an integrated circuit is, and how to use IC's in your circuits. We will be learning with a classic 555 timer, one of the most versatile and successful chips of all time.
Lesson and resources
- Geocities(Silicon Valley) Explains how the 555 timer works.
- Solarbotics(Capacitors) Conversions for capacitor codes.
- Reading Capacitors Explains how to read capacitor codes.
- xtronics(Resistors) Explains how to read Resistor codes.
Procedure
On the right is a schematic of the circuit we plan to reproduce on our breadboards. Your 1 uf capacitor can be either electrolytic or ceramic - doesn't matter. The first thing you'll want to do is put the chip on the breadboard. Make sure you put it in on top of that big divide in the middle - that way no two pins are in contact. Make sure that all the pins go in evenly, that none are bent, and that none are skipping a row. For clarity I've cut all my wires very small; however, while breadboarding it is usually better to make them longer so that you can easily remove them with your fingers.
Completion Pictures
alternatively ...
[Edit by Jordan: Seriously... If you make us a 555 timer graham cracker desert, it counts...]
