The are 3 groups of connections to make on the Arduino, which should already be grouped from Step 5. The colours make them easy to follow from the bottom to the top. Leave the two pin connector for switching on unconnected.
Motor A should be connected to Digital pins 3, 4 and 5. ENA should correspond to pin 3.
Motor B should be connected to Digital Pins 8, 9 and 10. ENB should correspond to pin 10.
The 5v and Ground pins are located together at the other end of the board. Be sure that 5v from the motor board goes to 5v on the robot. Check this before going to the next step.
Put six AA batteries in the holder. Be careful to get the right polarity.
Use the included USB cable. Connect on end to your PC.
The Robot should light up. There should be a blinking LED on the Arduino.
You should see something a bit like this when you’ve completed the above.
The basic code for getting the robot running is on Github. Download the current release. Unzip this. Then open SimpleMotorBot/SimpleMotorBot.ino in the Arduino app.
Put the robot on its side.
Push on the first wheel.
Note the axles on the motor and the hole are circles with two flattened edges.
Line it up, and push it on – it takes a pretty good push.
Put the robot on the floor.
Locate the green jumper - and place it over BOTH pins of the on connector. The robot should start to move!
The robot is now ready for you to start playing with the program, or adding sensors. The Getting Started section has more.