Monday, November 1, 2010

Update on Project 2

Arduino schematic on running a DC motor

Going slowly. Having trouble figuring out how to drive the motor- getting a MOSFET transistor today (metal-oxide-semiconductor field-effect transistor, p70 of "Getting Started with Arduino").

I am trying to create a system that responds to the amount of light in the environment and changes the speed of a motor accordingly.

Analog Input : LDR (light dependent resistor) (p. 64- 68)

Analog Output : 3v DC micro vibration motor (p. 69- 71)


After looking thought the Arduino Playground, I'm unsure whether or not I need a motor shield and/or an external power source. In the Arduino handbook, page 71.

I've also seen an H-Bridge appear on several sites, and I'm wondering if this is vital to run the motor.

Tutorials on Arduino Playground I've been looking at:

controlling a motor tutorial

Using an Arduino to control the speed and direction of a DC Motor.

Arduino Forum on controlling motors via a microphone

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