Make Your Own Sunrise Alarm Clock

Sunrise alarm clocks can be a pleasant way to wake up in the morning, but they're expensive. Instructables user Gledow wanted to make one from cheap parts sitting around the house, and did so with a clever mix of a timer and a light bulb.

Unlike the Arduino sunrise alarm clock, or the ATTiny13 design, Gledow's build uses parts you probably have in your house already, including a box, lightbulb, extension cords and an old phone charger. You will also need a slow turning DC motor and a timer socket, but both are relatively cheap.

The end result is a mechanical contraception that opens up slowly to wake you up to the light, without any expensive electronics. Head over to Instructables for a full guide.

Wake-up light (no arduino) [Instructables]


    Errr... Contraption?

      It's mechanical but ineffective

        Sorry, I should have been more specific.
        Surely you meant to type contraption, not contraception. I don't think this alarm clock would help prevent babies.....

    I'm pretty sure it would scare off most female companions if they saw this on your bed side table.

    "a mechanical contraception that opens up slowly".

    I'm still trying to work out what this is other than an approved Catholic device that doesn't do what is intended...

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