Recent Blog Posts
Forum user EVL has built a 6-foot tall self balancing inverted pendulum bot as part of an effort to practice feedback control systems.
A PID control system achieves tilt stability. Tilt angle is calculated from sensor fusion of LSM6DS3 accel/gyro readings passed through an Extended Kalman Filter. Propulsion is done with 3A stepper motors […]
Aaron Turner built his own digital setting circles (DSCs) to add to his 12″ Dobsonian telescope after finding the commercial options were pricey and lacking in a good user interface.
DCSs show you where to point your telescope to locate your astronomical target. They are particularly useful in areas of high light pollution. […]
Drew Fustini tweeted about a presentation he saw at LinuxCon 2014
A Teensy 3.1 was used for a DIY security token. The functions inlude Trusted Platform Module […]
Forum user whannah built a nifty MIDI joystick so that he could control a synthesizer from his organ.
This joystick solved a couple of problems for […]
Sammy Kamkar created an amazing sound reactive LED wall
This 4×4 wall has 1,728 addressable LEDs and tracks anyone in front of it via Kinect. Samy does smart background subtraction by creating a “depth window” in 3d space as the Kinect can provide me full depth data. The software is a combination of code he’s developed in OpenFrameworks, Syphon and Quartz Composer for sound reactivity. The panels are driven by a $19 micro-Teensy board using […]All Blog Posts »
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