DIY Color-Changing LED Coasters!
Here’s a cool set of DIY colo-changing LED coasters. Basically, it runs on solar power, LEDs light up in red for hot drinks and blue for cold drinks.
Looks pretty simple to make, maybe a good idea for your next circuits projects.
Smart Coasters are cast-plastic coasters for your drink that light up red when you put a hot drink on top and light up blue with a cold drink. The design is fully analog– no microcontrollers and no programming– and they incorporate a solar cell so that the whole thing is hermetically sealed: waterproof and washable. Complete step-by-step DIY instructions are included for both the electronics and the resin casting.
via evilmadscientist, hungryscientist
Tags: Circuits, cold drink, cold drinks, colo, DIY, microcontrollers, plastic coasters, power leds, resin, solar cell, solar power
Categories: Consumer, DIY, Design, Drinks, Educational, Entertainment, Featured DIYs, Gadgets, LED, Misc, Projects.
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