Today I was bored and I remembered this video I saw awhile back that had a TF2 kill counter using an Arduino. I’ve been playing TF2 a lot recently (since it became free to play, I’ve been doing a lot better in comparison) so I figured it would be cool to implement something like that. I could’ve done it with LEDs or even GLCD screens (actually it might be cool to do something with the LoLShield), but since Cubey’s been sitting on my desk unused for the past few months, I thought I’d put him to use. Cubey gradually turns around as I get more kills, and after a certain point, he starts moving his ears. He turns back around in disappointment when I die, though.

I used Python to read the config.log file located in the tf folder (on mine, it’s “C:\Program Files (x86)\Steam\steamapps\your_username_here\team fortress 2\tf”). It reads the latest lines and looks for “A killed B” or “A suicided” and sends either a + to the Arduino when A kills someone or it sends a 0 when A is killed by someone else or kills themself. The Arduino then reads from the serial port one character at a time and makes the Cubey servos move accordingly.

Python and Arduino code are in this zip file.

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So I designed this Kyubey papercraft this weekend, with the idea based on this image on @kevinchai’s twitpic. It’s Cubey because it’s a cube (well technically a rectangular prism).

Cut along the solid lines, fold along the dotted lines. The ears and the gold ring things are meant to be folded back on themselves so that they’re colored on both sides (I’m seeing a lot of people who don’t get this! It’s somewhat important!). See the images in the gallery if you’re confused. I didn’t add the tail to mine because I didn’t glue the back closed, but basically cut along the solid line on the tab on the back part of the main body and insert the tab from the tail. If you make one of these, post it here, I’d like to see it!

I also added electronics to it (I am terrible at soldering; you have permission to laugh at the pictures of the circuit)! One servo for rotation of the entire papercraft, another servo and a rubber band for moving the ears up and down, and two photocells (one on each side) to sense light. I have it so that Cubey will turn either toward or away from light depending on what I set in the program. I tried adding remote control, but my IR receiver kinda broke somehow. Here are some videos of the other stuff, though.

And more on the channel. Image gallery in the full post.

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