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Smaller Dobsonian telescope
Cross-laser collimator for Newtonian telescopes
Viewing magnetic effects on water
How to Get Started in Amateur Astronomy
Optical Testing of Parabolic Mirrors
Arduino-based line follower robot using Pololu QTR-8RC line sensor
How to make a Ball Balancing Robot
2-Wheel Self Balancing Robot by using Arduino and MPU6050
ArduRoller balance bot
Arduino Self-Balance Controller using DIGITAL IMU, at last!
Ball on Plate control
Hack Tamiya Kits For Robots & Make A Simple Robot!
Line Follower Robot
make simple line follower with erulduino
Line following robot with PID algorithm
LINUSBot - Line Follower Robot
Line Following Robot with Basic PD (Proportional-Derivative) control
A Simple and Very Easy Inverted Pendulum Balancing Robot