Object: Entry 1

Lab 1: Basic Electronics

For this lab, we created a few basic electronic circuits from breadboards, jumper wires, LEDs, resistors, voltage regulators, and a power supply. The objective was to create two circuits: one of LEDs in series and one of LEDs in parallel.

LEDs in Series

For my LEDs in series, I choose blue LEDs which have a draw of 3.4V and .03A. Two of these in series would require more power than a voltage regulator woulod proveide at 5V so I wen without it.

Schematic of LEDs in paralell with calculations of resistors

I used a 100Ω resistor which was slightly more than necessary but the piece worked charmingly.

LEDs in Parallel

For the LEDs in parallel, I was able to use the voltage regulator with two 47Ω resistors which were slightly more than what was needed. Again, I used the blue LEDs.

Schematic with calculations
Final circuit
Demonstration of final product

Custom Switch

For the custom switch, I used three pieces of foam. The top and bottom had copper pieces attached to them with the wires on top of that. The middle one had a hole in the center so when the switch was pressed the two copper sheets touched and completed the circuit.

Originally, I had added the wires under the copper so the switch would have a definite off position but the glue on the copper tape prevented a current.

Final product.
Demonstration of final product

Creative Enclosure

For the creative enclosure, I laser cut a box and then added holes for the LEDs, switch wires, and power supply using a drill press. I then soldered the LEDs together to a wire. I also added wires to the power side of the LEDs so they could reach the board when it is fully assembled.

Pieces of the board after gluing the LEDs to the top
Close up of bread board and top of box
Demonstration of finished product