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→Part 1: Set up your 5V power supply
== Activities ==
=== Part 1: Set up your 5V power supply===
Set up the voltage regulator on your breadboard. This chip (a "5 volt regulator") takes your input voltage (12V from your adapter), and turns it into 5 Volts. Here are the diagrams on how to set it up:
[[Image:7805_schematic.png | 350px ]]
[[Image:7805_pinout.png | 200px]]
[[Image:7805_on_breadboard.jpg | 300px]]
Set up a light bulb on your board as a power indicator. If your board has power, this bulb should turn on:
[[Image:7805_schematic_w_bulb.png ]]
[[Image:7805_with_power_light.jpg | 200px ]]
**what is the voltage across the bulb?
**what is the voltage across the input to the voltage regulator?
**what is the voltage across the output from the voltage regulator?
**how much current is flowing through the bulb? according According to the [http://www.jameco.com/Jameco/Products/ProdDS/210008.pdf datasheet] how much current should the bulb draw?REMEMBER: measuring current with a multimeter is different than measuring voltage. You need to "break the circuit" and re-connect it through the multimeter.
=== Series and Parallel===
