DIY Pegboard with Acrylic Cover

Step 1: Find a sturdy piece of material (eg. plywood, styrofoam, etc.)

Step 2: Drill evenly spaced holes

Step 3: Create the pegs from wires as shown

Step 4: Tape the end of the peg to the back of the board to secure it

Step 5:Add panels of acrylic sheet by using brackets and hinges

Step 6: Put in the tools 


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Arduino Robot - Quadruped - body kinematics tests

This is a quadruped robot in prototyping using seeeduino mega, 12 HXT900 hobby micro servos, 3.7V lipo battery. Materials used are all plywood secured with small bolts and nuts. Programmed with Processing and Arduino IDE.

The first clip shows the horizontal movement of the body and the corresponding reaction angles of the legs.

The second clip includes both the horizontal and vertical movement of the body and the corresponding reaction angles of the legs.

3.7V lipo battery is used to power the servos and the seeeduino mega runs off the power from USB.

Will be working on the walking gait soon.. when i have time..

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Arduino / Processing ADXL330 accelerometer

Visit for more arduino and processing tutorials.
Also available on

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MATLAB/Simulink - Simple Pendulum

Pendulum's equation of motion done in Simulink using ode45 solver. Calculated angle and corresponding x and y coordinates of the pendulum mass are exported to MATLAB workspace and plotted accordingly with timer object. Video shown is accelerated version of 40seconds duration.

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