CONTENTS
xvi
3.3v Power............................................................................................................................................ 459
Accelerometer ...................................................................................................................................... 459
Gyroscope............................................................................................................................................. 461
Gyroscope Versus Accelerometer Summary ........................................................................................ 463
Filtering the Angle ................................................................................................................................ 463
Making the IMU Adapter Board......................................................................................464
Selecting the Motors......................................................................................................465
Electric Brake Removal ........................................................................................................................ 467
Motor Mounting Position ...................................................................................................................... 471
Selecting the Motor Controller.......................................................................................472
SoftwareSerial Library.......................................................................................................................... 473
Sabertooth Simplified Serial................................................................................................................. 474
The Batteries .................................................................................................................475
Sealed Lead-Acid.................................................................................................................................. 475
Charging ............................................................................................................................................... 476
12v Supply............................................................................................................................................ 476
The Frame......................................................................................................................477
Frame Design ....................................................................................................................................... 478
Building the Frame ............................................................................................................................... 479
Inputs.............................................................................................................................483
Steering ................................................................................................................................................ 483
Gain ...................................................................................................................................................... 483
Engage Switch...................................................................................................................................... 483
Level-Start............................................................................................................................................ 483
Mounting the Inputs to the Frame ........................................................................................................ 484
Installing the Electronics ...............................................................................................488
Soldering the Inputs ............................................................................................................................. 491
Wiring the Connections ........................................................................................................................ 492