VEX RObotics

VEX ROBOTICS

Important Components Microcontroller Power Motor Sensors Transmitters Hardware

Microcontrollers

Motors

Interrupt

Sensors

Don’t worry too much about the Interrupt. Make sure you know where the Motor and Sensor inputs are.

Microcontrollers

Battery

TransmitterSerial Cable

Status lights

Power Self-Explanatory

Motor Use shafts, bearing flats, and thin screws Only Continuous Motors Different from usual DC motors

Sensor Limit

Creates a range of motion Shaft Encoder

Counts rotations of wheel Sonar

Measures distance

Transmitter 6 Channels “Trimming” 9 Volts minimum

Transmitter Crystal: Certain frequency Connect to microcontroller with cable

Hardware Parts that keep the robot together

Screws Nuts Standoffs Shafts Shaft Collars

Screws & Nut Thick:

Most parts Thin:

Motors Rack Gears

Tips: Push down and twist Otherwise, they become stripped If possible, tighten from nut

Standoffs Very useful support

Columns Press Limit Switch

Use regular screw

Shaft Collar Tighten things in shafts

Stop motors and wheels from sliding Tips:

Never unscrew too much Not too tight Use thin wrench

Tips Summary Shaft Collar

Never unscrew too much Not too tight

Screws Push down while twisting (Becomes stripped)

Zip Ties Only at end

End of Presentation Thanks for putting up with the lecture! Let’s Start Building!