A SpareBot-inspired spaceship:
It’s more fun, of course, when the LEDs actually light up:
Here’s the circuit diagram – basically three LEDs in parallel, a battery, and a magnetic reed switch:
A resistor is added to each of the red LED branches; this is to limit the current in those branches so that the white LED gets some current as well. Without the resistors, the bulk of the current will flow in the red LED branches (which have less resistance), and the white LED will not light as the current flow through it will be extremely small.
Since the ship’s just held in place by wires, turning on and off a mechanical switch would eventually flex the ship out of shape. Hence a magnetic reed switch is used, it’s more streamlined and you can hide it in the fuselage without anything sticking out.
Archive for May, 2009
Here’s an origami street lamp:
Here’s an origami street lamp at night:
It’s folded from two sheets of paper, with some electrical components stuffed in:
The circuit – bulb, switch and battery in series – fits nicely into the base of the lamp:
More origami lights coming up in the next few weeks!
(assuming I get around to it, obviously…)
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