A Basic PID controller - Balancing LEGO Robot Scott Wiedemann 2014-04-14 | This is my first Exploration into PID Controllers. Using LEGO Mindstroms ev3 brick, I built a simple 'segway'. Inputs: gyroscope angle and rate, motor encoders angle and rateOutput: motor torqueYou can find the code here: github.com/lemmingapex/LEGOSegwayPID controller ideas and basics:http://en.wikipedia.org/wiki/PID_controllerHelped with dt smoothing: http://en.wikipedia.org/wiki/Exponential_smoothingSimple low pass filter used in gyro rate calculations:http://en.wikipedia.org/wiki/Low-pass_filterThanks to Laurens Valk for feedback on my ideas.With IR remote control:youtube.com/watch?v=iPUlDu62Itc
Arduino Solar Tracker Scott Wiedemann 2015-01-16 | Arduino project to track bright stuff. Finds a bright spot, like the sun, a ceiling light or lamp. Dumb, right?Here's the code: github.com/lemmingapex/ArduinoSolarTrackerStuff:4 Photoresistors (inputs)2 Hitec HS-311 Servos (outputs)1 Arduino UNO1 breadboard4 10k resistorslots of wires
Raspberry Pi + RC Plane Scott Wiedemann 2014-07-22 | FPV of my RC plane running into a tree. Camera Rig was too heavy...
LEGO Segway PID Controller with IR Remote Control Scott Wiedemann 2014-05-13 | Using LEGO Mindstroms ev3 brick, I built a simple 'segway'. This version is rigged up with an IR controller, that allows you to move and turn the segway.Inputs: gyroscope angle and rate, motor encoders angle and rateOutput: motor torqueFind the program here: github.com/lemmingapex/LEGOSegwayFirst balancing robot:youtube.com/watch?v=RRThpbiIi40
LEGO Logic Gates - Half Adder Scott Wiedemann 2013-12-27 | A half adder I built from LEGOs. The half adder is built form only OR and NOT gates. The amount of mechanical imprecision and friction in the half adder suggests that a full adder with a similar design would have issues functioning.If you are interested in building one, here's where I ordered the parts from: http://www.bricklink.com/store.asp?p=ToyBrickBrigadeInspiration:http://www.nand2tetris.orghttp://randomwraith.com/logic.htmlhttp://keshavsaharia.com/2011/05/29/lego-logic
Cheminformatics, Encodings SMILES & InChI Scott Wiedemann 2012-11-18 | Project for Cheminformatics Fall 2012. Part 2/2. Presentation on encodings, SMILES and InChI. Part1: http://www.youtube.com/watch?v=Q7ZyWMgCUE4
Cheminformatics, Graph Isomorphism & Subgraph Isomorphism Scott Wiedemann 2012-11-18 | Project for Cheminformatics Fall 2012. Part 1/2. Presentation on Graph Isomorphism and Subgraph Isomorphism, and how they relate to cheminformatics. Part 2: http://youtu.be/V9HHnRAS5BA
Farthest Point Seeding for Placement of Streamlines Example 4 Scott Wiedemann 2012-11-18 | Farthest Point Seeding for Placement of Streamlines
Farthest Point Seeding for Placement of Streamlines Example 5 Scott Wiedemann 2010-12-08 | Farthest Point Seeding for Placement of Streamlines
Farthest Point Seeding for Placement of Streamlines Example 3 Scott Wiedemann 2010-12-08 | Farthest Point Seeding for Placement of Streamlines
Farthest Point Seeding for Placement of Streamlines Example 2 Scott Wiedemann 2010-12-08 | Farthest Point Seeding for Placement of Streamlines
Farthest Point Seeding for Placement of Streamlines Example 1 Scott Wiedemann 2010-12-08 | Farthest Point Seeding for Placement of Streamlines
