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EEL5666 – Spring 2005 Special Sensor Report

EEL5666 – Spring 2005 Special Sensor Report. R. Michael Ihns. Sensors. Solar Panel and Charging Circuit Infrared Sensor – Edge detection Ultrasonic Ranger – Obstacle Avoidance Pyroelectric Sensor – Wake up Input 3 CDS – Light Direction Sensing 1 CDS – Ambient Light Level Sensing.

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EEL5666 – Spring 2005 Special Sensor Report

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  1. EEL5666 – Spring 2005Special Sensor Report R. Michael Ihns

  2. Sensors • Solar Panel and Charging Circuit • Infrared Sensor – Edge detection • Ultrasonic Ranger – Obstacle Avoidance • Pyroelectric Sensor – Wake up Input • 3 CDS – Light Direction Sensing • 1 CDS – Ambient Light Level Sensing

  3. Solar Panel Array and Li-Poly Cell Solar Panel • 8.5V • 100mA Battery • 7.4V • 730mAh • 31 grams Edmund Scientifics Solar Cell, Thunder Power Li-Poly Cell

  4. Lithium Polymer Charge Curve

  5. Circuit Diagram

  6. Testing 2-Cell Lithium-Polymer Battery in 4.5 Hours of Full Sunlight Single Cell 1.2V AA Nickel-Metal Hydride Battery

  7. Conclusion • Need higher voltage solar panel

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