|
|
| (One intermediate revision by the same user not shown) |
| Line 1: |
Line 1: |
| == Get That Soldering Done ==
| |
|
| |
|
| '''Task'''
| |
|
| |
| The task was to build a small circuit mainly in order to familiarise ourselves with a soldering iron.
| |
|
| |
|
| |
| '''Work'''
| |
|
| |
| Tobias Wolf and I constructed a wooden display that either shows the number zero or the number one with the help of a drilled dot matrix and nine LEDs.
| |
|
| |
| [[File:Led-zero-one-two-way-connection.gif|800px]]
| |
|
| |
| To accomplish the change of the number we build a two-way connection; first we put one, two and two times three LEDs each in a series circuit and connected those in parallel. Next a resistor of 330 Ohm was used for the wiring with only one LED and a resistor of 220 Ohm for the one with two LEDs. That's slightly more resistance than needed but we assumed this wouldn't be a problem.
| |
|
| |
| On top of this we improvised a toggle switch which connects the two LEDs either with the single LED to form the "1" or with the other six LEDs to form the "0".
| |
|
| |
| [[File:Led-zero-one-two-way-connection-back.jpg|800px]]
| |
| [[File:Led-zero-one-two-way-connection-switch1.jpg|398px]]
| |
| [[File:Led-zero-one-two-way-connection-switch2.jpg|398px]]
| |
|
| |
|
| |
| '''Circuit Diagramm'''
| |
|
| |
| [[File:Led-zero-one-two-way-connection-circuit.jpg|800px]]
| |
