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My Homemade Musical Sunrise Alarm Clock

svorkoetter

By svorkoetter
in All Things Clocks

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svorkoetter WRT Addict

svorkoetter

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Posted

This is my first post in the Clock Corner, and horologically speaking, this is probably not a very interesting clock (the movement is quartz), but since I'm a WRT member, and since many of you probably have multiple hobbies too, I thought I'd share this here.

 

This project combines several of my hobbies, namely electronics, music, woodworking, horology, and getting up in the morning. It's basically a quartz alarm clock, but it has several novel features:

  • simulated sunrise using orange and white LEDs
  • a random "music" generator, built entirely using analog circuitry
  • uninterruptable power supply, remaining fully functional (up to 20 hours) during an outage
  • very bright and long lasting lume, using techniques I've developed for my watch projects

Building a Musical Sunrise Quartz Alarm Clock

 

completed-clock1-276x207.jpg

 

At the end of the article, there's a video showing the alarm sequence.

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    • Neverenoughwatches
      Stem removal after fitting hands

      By Neverenoughwatches · Posted

      So leave off the seconds. Stand the movement on its edge, its the dial edge that rests on the pad ( either rubber or cork , something that wont slip ). Use a finger of your left hand to hold the movement upright,  right hand presses the release and flicks out the stem. I do it this way so i can see what I'm under a microscope. But you could hold the movement between two fingers of your left hand, its the right that has to manipulate the stem out by pushing the release and flicking out the stem with  right ring finger nail. Sounds more complicated than it actually is. I guess you could fix a push pin to something solid, then all you need to do is push the release against the pin, leaving your right hand completely free to pull the stem out.
    • HectorLooi
      Battery

      By HectorLooi · Posted

      Try putting everything back together and closing the back cover. I think one of the two springs has to contact the metal casing to ground the casing. So when you press the button, it will touch the contact on circuit board and close the circuit.
    • PeterS
      Stem removal after fitting hands

      By PeterS · Posted

      Yes, the seconds hand is the longest and goes almost to the edge of the dial. I can’t quite picture it how you do it on the rubber pad
    • Murks
      Battery

      By Murks · Posted

      A don't think so it leaked or damaged it because the watch itself works it just the buttons ain't working not connecting with the circuit board have taken more pictures of where the buttons makes contact with the circuit board.
    • Neverenoughwatches
      Stem removal after fitting hands

      By Neverenoughwatches · Posted

      I think what peter means oh is once he has fitted the hands and  checked for  alignment if them and that they dont foul, how does he then hold the movement to remove the stem in order to case up. The dial cannot be laid on a cushion or in a movement holder as the hands will get damaged. This can be quite tricky for a beginner, what i do is  to stand the movement on edge on a rubber pad so it doesn't slip. Hold the top edge with one finger then my dominant hand uses 3 fingers to press the stem release and flick out the stem. See below peter, leave off the second hand as this is the longest and gets caught the most, then fit it once the stem is out. Alternatively place the movement in one of the cup style holders, i imagine this is what they are designed for. They only touch the very edge of the dial.  
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