- Working in pairs, create three simple circuits on a breadboard based on the circuit diagrams below and take photos and notes to post later on the documentation blog (we will go over documenting your work in class).
- The first circuit uses a voltage regulator, buzzer and a switch.
- The second circuit uses a voltage regulator, resistor, LED and switch.
- The third circuit uses a voltage regulator, resistor, potentiometer, LED and switch.
- In your blog post please answer some of the following questions:
- Why was it important to use a voltage regulator?
- Why did you need or not need resistors in your circuits?
- We used pushbutton switches in these diagrams. Are there any switches that we interact with everyday that do not require us pressing a button or an on/off switch with our hands?
- 1 * Breadboard
- 1 * LM7805
- 1 * Buzzer
- 1 * Push-Button Switch
- 1 * 220 ohm Resistor
- 1 * LED
- 1 * Variable Resistor
- 1 * Power Supply and Leads
- Hookup Wires
Here are some helpful diagrams to help you understand your components better:
LM7805 voltage regulator pinout:
Push-Button Switch. Notice that some of the leads are always connected to each other.