For the final (top tier) of the paper robot project, I used the same simple circiut design as the previous step, this time adding two green LEDs for the eyes and three red LEDs for the mouth.
Different than the other tutorials I've seen, I found it easier to put one side of the copper tape down FIRST! (Pic 1)
Pic 2: I slipped in the LED using a pair of tweezers <
Here's the final card! I think the trickiest part was sketching out the circuit in pencil first. What I realized was most important was to make sure there is one trace for
Maybe one LED is not so fun and you want to light up multiple LEDs. There are two ways to do this. You could add two LEDs in series, which basically means that you chain them together,
Finally, the cards are complete! I think they turned out pretty well but ended up being a ton more work than I expected it to be. Still, it was fun to try out! And my friends real