1:00- 2:30 PM. ASSEMBLE ROBOT CHASSIS
Soldering:
Extend motor wires with #22 gauge solid wire
Extend Battery wires with #22 gauge solid wire, connect to 5V voltage regulator
Connect wires to output of LM2596 Voltage Regulator
Cut out chassis: 5 inches x 9.25 inches
Attach Motors with ties
Attach caster wheel
Attach Battery Pack with Velcro to bottom
Attach voltage regulator to bottom
Attach Breadboard
Install Arduino Nano on Breadboard
Install DRV8833 on Breadboard
2:30- 4 PM WIRE MOTORS, POWER SUPPLY, AND MOTOR CONTROLLER
NOTES ON POWER: The robot is powered by a 6 volt battery pack with 4 'AA' batteries. While this can be used to directly power the motors and servo motor, the Arduino Nano needs either a clean 5 volt supply( attached to the 5 volt pin), or 7 volts or more attached to Vin. The simplest way to implement this is pass the 6 volts through a 5 volt voltage regulator, which will then be used to directly power all components in the system.
5V Regulator Output(Red)---------------->5V Bus 1
Power Bus 1(Red)---------------------=---->5V Bus 2
5V Regulator GND------------------------>Ground Bus 1
Ground Bus 1------------------------------>Ground Bus 2
Arduino Nano GND------------------------>Ground Bus
Arduino Nano 5V--------------------------->5V Bus
DRV8833 Vcc-------------------------------->5V Bus
DRV 8833 GND------------------------------>GND Bus
DRV 8833 EEP-------------------------------->5 V Bus
DRV ULT--------------------------------------->5V Bus
Servo Power----------------------------------->5V Bus
Servo GND------------------------------------->GND Bus
Motor 1A <------------------------------------------DRV8833 Out 1
Motor 1B<-------------------------------------------DRV8833 Out 2
Motor 2A<------------------------------------------- DRV8833 Out 3
Motor 2B<--------------------------------------------DRV8833 Out 4
Arduino Nano D4------------------------------------->DRV8833 IN1
Arduino Nano D5------------------------------------->DRV8833 IN2
Arduino Nano D9------------------------------------->DRV8833 IN3
Arduino Nano D10------------------------------------>DRV8833 IN4