With Hackaday’s Supercon within the rearview mirror for one more 12 months, I needed to take the time to spotlight among the nice SAOs that got here out of the Hackaday SAO Contest for Supercon. Easy Add-Ons (swiftly renamed Supercon Add-Ons for the occasion) are little circuits that you simply connect to your convention badge utilizing a typical, easy 6-pin header. On this case, it’s the Etch-sAo-Sketch, coming to you from the identical designer who created the core memory-based SAO.

The Etch-sAo-Sketch is a superb concept for an add-on — one thing easy, but entertaining and efficient as a badge accent. It has two potentiometers for the X/Y controls, but in addition has a 3-axis accelerometer. This SAO makes nice use of the I2C bus, which was one thing the competition needed to spotlight. This add-on is dependent upon the badge’s microcontroller to drive it. The OLED and accelerometer use the I2C bus, and the 2 pots join through ADC inputs on the accelerometer in addition to the 2 GPIO pins.

Choose one up whereas they final and use them to show information about your self or your organization, or have it draw random stick figures till somebody touches the knobs — there are plenty of potentialities right here! It will possibly even be used as a basic show output for some other app operating on the badge.