Past Meetup

IndyPy Monthly Meetup

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This month we will have James Alexander as our main presenter and Calvin Hendryx-Parker leading our PBJ.

PBJ Presentation
by: Calvin Hendryx-Parker, Six Feet Up

New to Python? Calvin will show you how to write a quick script on the command line and use argparse and clint to make beautiful scripts.

Coffeebot 3000 - An IoT story with a RaspberryPI, Redis, LEDs, and Mario
by James Alexander, Leaf Solutions

This is a story about the creation, maintenance, and on-going features built onto an IoT device to measure the amount of coffee in a coffee pot.

Topics and technology covered:
* Managing RaspberryPI Wifi connections
* Reading binary data from a USB scale
* Drawing Bitmap art to an LED Display connected via GPIO to the RaspberryPI
* Using Redis PubSub to control the queue of graphics and animations displayed on the LED panel.

Features of Coffeebot 3000:
* Measures the remaining coffee in a pot, and displays the amounts on an LED panel
* Responds when a user lifts the pot, and updates the display after replacing the pot
* If the pot has less than 1 mug, or has been on the scale for 2 hours or more, a random animation will be shown. Possible animations: Mario running across the display, a group of Red LEDs oscillating back and forth, or Conway's Game Of Life in various initial configurations with random colors for each pixel.

We will also have a special demonstration of CrowdPixie by Gene O'Donnell. Don't miss out on your chance to win some IndyPy Swag or a CrowdPixie t-shirt! Download the free CrowdPixie App for iPhone ( or Android (


7:00p - 7:20p Meet, Greet and Eat

7:20p - 7:30p Announcements and introductions

7:30p - 7:45p PB&J Session w/Calvin Hendryx-Parker

7:45p - 8:15p "Coffeebot 3000" by James Alexander

8:15p - 8:30p Q&A

8:45p - 9:00p Door Prizes - CrowdPixie Demo with Gene O'Donnell

9:00p - 9:30p Networking