Made: Ladder game for ATtiny13A using Charlieplexing

This short video shows the ladder game for the ATtiny13A, based on the version by Sanuki Udon. The ATtiny13A is a very affordable MCU (+/- 30 eurocents each via China, see link below). Although it has limited features compared to its bigger brothers the ATtiny85 (found on the Trinket and the Digispark) and the ATmega328 (the well known MCU on the Arduino Uno and Nano), some people have done great things with this tiny micro controller. When I found this great instructable (linked below) I couldn't resist remaking this project. To light up so many LEDs with a few pins, it uses a technique called Charlieplexing. More info in the video. It's amazing to see how much gameplay was fitted in only 1K of flash program space and 64 Bytes of RAM, without resorting to assembly instructions. It's all just plain C, written in the Arduino IDE. I used version 1.6.7 and programmed the sketch to the MCU using a UsbAsp programmer. I increased difficulty by adding a bit of pseudo-randomness in the delays. It was a nice project to do and with help of plenty breadboard wires didn't take much time. Links: Buy here: http://s.click.aliexpress.com/e/fQZ3fey Howto: http://www.instructables.com/id/How-t... Code: https://github.com/KeiTakagi/Ladder_G... About charlieplexing: https://en.wikipedia.org/wiki/Charlie... Datasheet: http://www.microchip.com/wwwproducts/... Oh; sorry for the background noise. It was raining all day...