Build a Sunburn Alarm

Step 2 Materials

I built mine with a Propeller Platform SD and an LCD UI module.  If you've got those, then the only thing you'll need is blue LED and 22pF Cap. Download the file on step 9 to your SD card, attach the LED & Cap, and you're ready to go.

But I'll also show you how to build Mr. Burns on a breadboard - and here's what you'll need for that;

Code
Here's the sourcecode.  Everything is available under the MIT license.

8x2 Character LCD
Displays the time.  Sparkfun has a 16x2 LCD that will work, too

3xAA battery box
Mouser Part#12BH331/CS-GR

Parallax Propeller
Available at Parallax

5Mhz Crystal
Available at Parallax

32.768 KHz Crystal
Mouser Part #73-XT262

32kb EEPROM
Mouser Part #579-24LC256-I/P

22pf Ceramic Cap

Blue LED
Mouser Part 859-LTL42UB6N

5x Tactile Switches
Mouser Part #653-B3F-1000 

3.3v Voltage Regulator
Mouser Part #511-LD1117V33

Around 10 10k ohm Resistors

4x 4.7k ohm Resistors

3 or 4 .1uF Ceramic Caps

3 47uF Electrolytic Caps

A Prop Plug

Breadboard and a bunch of hookup wire.