Merciless Pi Alarm Clock

Description

Here are the things that set this apart from your typical alarm clock:

1. A bed shaker under the mattress (from an alarm clock for the deaf/hard of hearing) adds vibration to the alarm. Put your bed on vibrate.

2. A pressure sensor from a patient fall alarm is used to sense whether you are in or out of bed. The alarm won't stop till you vacate the bed.

3. The snooze button only gives you 3 snoozes (programmable). Push the button all you like after that, it doesn't care.

4. The clock continues to monitor the pressure sensor for the next hour and sounds the alarm if you get back in bed. No backsliding.

5. Uses a Raspberry Pi with WiFi and an RTC module with a battery backup so the time will always be correct even if there is a power failure or daylight savings time switch during the night.

Files

pialarm_-_ponoko_2.svg

Laser cut file for the enclosure. I had ponoko.com do the cut using veneered MDF with a thickness of 5.7mm. Veneered MDF looks great after staining and a coat of polyurethane.

svg+xml - 597.68 kB - 03/30/2017 at 00:10

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pialarm_-_lens.svg

This is for the diffuser to fit into the window over the LCD. I used gray tinted acrylic 3mm thick.

svg+xml - 664.30 kB - 03/30/2017 at 00:10

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PiAlarm.fzz

Circuit diagram

fzz - 108.24 kB - 03/30/2017 at 00:09

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Components

1 × Patient alarm pressure sensor pad I got mine from eBay but there are many others. They look like this: http://www.medline.com/jump/product/x/Z05-PF11969

1 × Sonic Alert Super Shaker http://www.amazon.com/Sonic-Alert-Super-Shaker-Vibrator/dp/B003E6HORE/ref=sr_1_17?s=hpc&ie=UTF8&qid=1427274082&sr=1-17

1 × Raspberry Pi B+ The B+ has FAR less noise and pop than the B. The Pi 2 is presumably the same

1 × DS1307 Real Time Clock with battery backup Keeps the time when the power is off

1 × 1.2" Adafruit 7 segment LED clock display No glasses, no problem

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hberg32 • 03/25/2015 at 10:01 • 0 comments

Just getting started, here.

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Discussions

Ethan Crow wrote 03/13/2017 at 16:30

Can you make instructions? Also can you post the design you used for the enclosure

Are you sure? yes | no

hberg32 wrote 03/30/2017 at 00:08

Hi - just saw your message. What kind of information are you looking for? I've added a Fritzing file of the circuit schematic and will post the source code as well (it's not fancy). I've lost my original inkscape design files for the enclosure but I've posted the files I sent off to ponoko.com for laser cutting. The only real trick to the enclosure design was the use of the "Tabbed Box Maker" plugin for inkscape. That lets you enter the dimensions of a box and it will draw the sides for you. After that I just added cut lines for the various holes. The "lens" file is for cutting a piece of acrylic to use as a diffuser in the LCD display window. Laser cut pieces are tight enough that the diffuser doesn't even need a mounting, you just press it in and friction will hold it securely.

Are you sure? yes | no

Andrew Lee wrote 09/21/2016 at 23:25

Can you please explain how you managed to connect the Sonic Bed Vibrator to the Pi peripherals?

Are you sure? yes | no

Paul Leskinen wrote 03/30/2015 at 11:56

Love this idea. Having a daughter who's a sophomore in high school whom I often find in bed 5 minutes before it's time to leave, the "no backsliding" feature is fantastic.

Are you sure? yes | no

Merciless Pi Alarm Clock

Description

Files

pialarm_-_ponoko_2.svg

pialarm_-_lens.svg

PiAlarm.fzz

Components

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Discussions

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