ME 120

• Laptop
• Sparkfun Inventor's kit
• Digital multimeter
• Miniature test clip adapters

Homework 3 is due at the start of class meeting.

• Be able to describe PWM as a method of simulating variable DC outputs
• Be able to implement PWM on an Arduino to control the brightness of an LED
• Be able to describe the equations used to simulate a breathing pattern with LED brightness
• Given any set of time delays in a simulated breathing pattern, be able to compute the parameters in the equations used to simulate a breathing LED
• Be able to implement an on-off pattern used as a building-block for the breathing LED simulation

• Breathing LED Equations in slide format: PDF
• PWM output on Arduino: PDF,
• Mandatory: take the online quiz 5 on D2L before coming to class for Lecture 7.

• Breathing LED code - Part 2: pdf

• Breathing LED equations
• PWM output on Arduino

• LED_dimmer.ino
• breathe_constant_LED_1.ino
• breathe_constant_LED_2.ino
• breathe_constant_LED_3.ino
• breathe_constant_LED_4.ino