RetardoKiddo: arduino

Showing posts with label arduino. Show all posts

Seeeduino MEGA 2560 with ADXL330
Reference:
http://arduino.cc/en/Tutorial/ADXL3xx
http://playground.arduino.cc/Main/ADXL330 https://www.sparkfun.com/datasheets/Components/ADXL330_0.pdf

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Arduino / MATLAB - 4DOF with force sensing

Setup can be made to automatically sweep in X and Y direction or controlled manually using the GUI.

Last link is fitted with a force sensing resistor to detect obstacles. It is always perpendicular to the datum plane. On contact with obstacle (my hand in the video), it changes direction in the Z axis. The location of the obstacle is recorded and shown on the MATLAB GUI.

Resources: Seeeduino Mega1280, MATLAB, x4 Hitec servomotors and 1 force sensing resistor.

Prototype Setup

MATLAB GUI

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Arduino / MATLAB - Servo Calibration

Interface between MATLAB and Arduino microcontroller to calibrate servo.
The Seeeduino Mega 1280 is used in this case.

Problem:
Servo does not center accurately and extends beyond 180 degrees.
Solution:
Identify error margin and apply correction in MATLAB

Resources used:
http://www.mathworks.com/matlabcentral/fileexchange/27843
http://arduino.cc/en/Reference/map

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Arduino Servo Pan/Tilt - dual mode control with joystick

Components:
1x Arduino Duemilanovue
2x 3.7V Lithium polymer batteries in parallel
2x HiTEC HS-485 servos
1x Playstation 2 style analog joystick
1x yellow LED

Setup overview:

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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..

Visit http://retardokiddo.blogspot.com/ for more projects and future updates!

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