Ingredients:

Bourbon or rye whiskey
Angostura bitters
A sugar cube or simple syrup
Orange peel
A rocks glass

The traditional recipe calls for placing a sugar cube in a glass, adding three dashes of bitters and then muddling the sugar to start dissolving it.  I use three dashes of bitters and a small squirt of simple syrup.  Sugar doesn’t dissolve that well, so I stick with syrup.  Go sparingly; you don’t want a sweet cocktail.

Next we need two ounces of bourbon or rye whiskey.  Woodford Reserve is a sipping bourbon, but it also makes great cocktails.

Using a vegetable peeler, get a nice slice of orange peel.  Trimming the edges is optional, but it looks nice if you’re making it for a guest.

Give the orange peel a good squeeze/bend lengthwise into the glass to get some of the oils into the cocktail.  Swirl it around a bit and leave it in the glass as a garnish.

Add a few ice cubes and serve.  This is a man’s cocktail – strong with just a hint of the orange and bitters for a nice flavor.

Let’s take a look at how all this comes together.

The Arduino is parked outside next to my Weber Smokey Mountain with the thermocouple running under the lid.

It’s using a thermocouple and a MAX6675 chip to send data via a USB extension cable to a Linux netbook.

The Linux box runs a cronjob once a minute, grabs a few temperature readings (cat) and posts the data up to a PHP page (curl) which stores it in a MySQL database.  We use some regex to parse the temperature reading out to its own field.

The web server has a PHP page with an API for performing various actions.  For example. we can return the latest temperature as JSON.

[{"ID":"6337","TemperatureData":"104.45 104.45 104.90 104.90 ","Timestamp":"2011-07-03 14:10:11","Temperature":"104.90","Parsed":"1"}]

The Android app is written as a sticky foreground service and it has a client app to view the temperature data, change alarm settings, etc.

The high and low temperature alarms are adjustable and the app will beep and vibrate the phone for one second when an alarm occurs, but we can turn off the beeping if necessary.

Using the AlarmManager class, we set up a repeating task to download the latest temperature and parse it using Gson.  There is a continuous notification showing the latest temperature.  If there’s been no updated temperature data in the last 15 minutes (say a squirrel stole the Arduino), we throw up an additional notification as well as vibrate/beep the phone.

The Nexus One can do colored LED notifications, so it also flashes the LED yellow to indicate a data problem.

If the temperature falls outside the high/low range, we throw up a notification/vibrate/beep thusly.

We flash the LED red if it’s too hot…

…and blue if it’s too cold.

If all goes well tomorrow, I’ll have a nice set of data and will work in some line graphs with Google Charts.  The Arduino also needs some sort of enclosure for long-term outdoor use.

The next step is to write some PHP code to return the data in JSON and an Android app to consume it.

I had the build guide pulled up on my netbook while I built it.

Soldering

Partially built

Completed

Let’s see if it works.  I ran the battery down on my Nexus One for a while.

Charging!  Success!

It also charges my wife’s Android G1.

Thanks Adafruit!  If you have a soldering iron and like building things, pick up a kit and make one yourself.