Motor
Get flash to fully experience Pearltrees
HOME - - - - - - - - Table of contents, my Arduino "How To" articles Other material for programmers Bookmark this on Delicious Recommend to StumbleUpon
Arduino Perpetual Motion Machine (Pendulum)- aHT8pendu
Arduino-Python 4-Axis Servo Control | Principia Labs
Although the Arduino platform is ideal for standalone applications, it really comes to life when interfaced with a PC. Connect Arduino to a personal computer and you instantly add a ton of versatility and processing power to your project. This tutorial will describe how to use Arduino to control a bank of four independent RC servos with your PC (or Mac, or *nix Box), using a USB cable and a modular Arduino-Python software stack. The following discussion builds upon concepts presented in two previous articles, “ Arduino Serial Servo Control ” and “ Joystick Control of a Servo .” As always, comments, critiques, or suggestions for improving or adapting this code are welcome and appreciated.
Arduino Platform - Differential Gap Control (Solar Tracker) - CodeProject®
Introduction This article gives a very simple introduction into writing a differential gap controller on the Arduino platform. I have used a Duemilanove for this example. This project consists of two inputs which track light levels on the East/West which are then used to move a servo, rotating East/West tracking the strongest light level. How It Works The two light sensors are basic photoresistors, these are mounted at 90' to each other, imagine these are your eyes, if you look straight ahead at a wall, the left eye would point 45' to the left, and the right eye 45' to the right.
Razor 6 DOF board from SparkFun is "thin" IMU (Inertial Measurement Unit) and has 3 gyroscopes and 3 accelerometers. I wanted to evaluate it for robotic purposes, a UAV in this case, so I connected it to Arduino board. Reading sensor data from Razor board is straight forward as outputs are all analog values. I first wrote simple software code to just acquire raw ADC data - to see how board behaves, and then ported code for state estimation based on DCM algorithm.
Razor IMU and Arduino - VoidBot.net
To reverse a DC motor, you need to be able to reverse the direction of the current in the motor. The easiest way to do this is using an H-bridge circuit. There are many different models and brands of H-Bridge. This tutorial uses one of the most basic, a Texas Instruments L293NE or a Texas Instruments SN754410 . If you simply want to turn a motor on and off, and don't need to reverse it, for example if you're controlling a fan, try the tutorial on controlling high current loads with transistors . Connect power and ground on the breadboard to power and ground from the microcontroller.
Physical Computing at ITP | Labs / DC Motor Control Using an H-Bridge
