Picture of Arduino alarm clock
Arduino is an amazing machine. This project is just one of the many. You can build your project as per the instructable or expand into more functions if you want.

We will construct a fully-interactive arduino powered alarm clock.
Here is a video of the alarm clock:

The alarm clock has the following functions:
1. Displays the time and date
2. User adjustable time and date
3. User settable alarms with various settings "weekday, weekend, daily, once, off", with buzzer and flashy led to wake you up.
4. Remembers its alarm settings even when power is removed.
5. More importantly, a special key that stops the alarm so you can get back to sleep!
6. Use the alarm function to power any shenanigans you want against your sleepy head :)

We will need the following parts:
1. Arduino duenilanove or UNO
2. Phi-1 shield kit for arduino

We will need the following tools:
1. A soldering iron. Anything from radioshack will work just fine. I use a set that is $8 with the iron and a few tools including some solder .
2. 45 degree cutter for electrical cords, to trim after you're done solder. You can buy one from radioshack or other places.
3. Optional third hand for holding circuit board. I can just lay the board down and solder it
4. Masking tape to hold down parts to be soldered

Let's get started!
its_raining26 days ago
Could I build this without using a phi 1 shield?

instead of the buzzer can one incorporate a 12vd.c relay

Javerage1 year ago

How do you upload this? I am only familiar with .ino files.

pcooper23 years ago
Nice project, except for serious timekeeping accuracy I'd consider using a Maxim DS3231 Extremely Accurate I2C-Integrated RTC/TCXO/Crystal module instead of the Maxim DS1307. The accuracy of the former is +/-2ppm from 0C to +40C, which translates to about +/-1 minute per year. The DS1307 uses a discrete 32.767 kHz tuning for crystal, and if you check the datasheet and separate application note regarding the crystal, you'll see there's no easy way to trim the crystal frequency and assure high accuracy over time and temperature.

Once the accurate timebase is available and the battery backup of the DS3231 makes it immune to power outages, well -- yeeoow! -- the Arduinuo can be used to make a clock with the wildest combination of features that you'll never find off-the-shelf anywhere.
bogyman573 years ago
I just ordered a Pi2 4-line LCD kit.

Are the Eagle files available for it?
I'd like to make a case for it on my cnc laser cutter.
(and I hate measuring if I don't have to...)

My intention is to make use of this project and combine it with a binary clock.
(a dual-display-mega-geek-alarm-clock, you might say...)

ValentinV4 years ago
Really cool .. Could this alarms be set from the computer?
liudr (author)  ValentinV4 years ago
Thanks! Right now it doesn't have this function but it could be implemented. Do you mean, say, transferring 5 alarm settings to the arduino from computer? How is setting alarms through a computer necessary? I could work on this function if you tell me more about your requirement. Thanks.
ValentinV liudr4 years ago
Yeah i was thinking for some time about an alarm clock that i would be able to set with a script or even better to get the alarms from the settings of an computer alarm clock so that if i would combine it with "this-hack-really-pushes-our-buttons" from "Ahackaday" or something similar i could start the computer in the morning or whenever and then the computer alarm will run :D

Hope it makes sense
liudr (author)  ValentinV4 years ago
I'll look into it, see what I can do :)
ValentinV liudr4 years ago
Now that would bee really nice :D
zazenergy4 years ago
Cool! Thanks for sharing.
liudr (author)  zazenergy4 years ago
You're welcome.