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V E X Robotics Design System Sensors A Brief Overview

V E X Robotics Design System Sensors A Brief Overview. VexLabs’ Sensor Robot. Off the Shelf Sensors. Bump Sensors bumper switches limit switches Ultrasonic Range Finder Line Tracking Kit Optical Shaft encoders * Light Sensors * We’d have to get these (we don’t have any). Touch Sensors.

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V E X Robotics Design System Sensors A Brief Overview

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  1. VEX Robotics Design SystemSensorsA Brief Overview VexLabs’ Sensor Robot

  2. Off the Shelf Sensors • Bump Sensors • bumper switches • limit switches • Ultrasonic Range Finder • Line Tracking Kit • Optical Shaft encoders • * Light Sensors * We’d have to get these (we don’t have any)

  3. Touch Sensors • Bumper Switches • designed to run into walls… • Limit Switches • designed to detect mechanical arms…

  4. Ultrasonic Range Finder • Detects the time it takes sound waves to return • Used to measure distances from 3 cm to 3 m

  5. Line Tracking Kit • Detects reflected infra red light • Used to follow lines

  6. Optical Shaft Encoders • Detects 90 ticks per shaft rotation • Useful for measuring speeds *Old encoders (they only have one PWM cable) can’t tell direction of rotation *

  7. Potentiometers(Variable Resistors) • Resistance depends on shaft rotation • Useful to accurately measure angles • Limited range of rotation

  8. Light Sensors • I haven’t got a chance to play with these yet.

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