Arduino Uno (or other microcontroller)[1] X Research source 2 continuous rotation servos 2 wheels that fit the servos 1 caster roller 1 small solderless breadboard (look for a breadboard that has two positive and negative lines on each side) 1 distance sensor (with four-pin connector cable) 1 mini push-button switch 1 10kΩ resistor 1 USB A to B cable 1 set of breakaway headers 1 6 x AA battery holder with 9V DC power jack 1 pack of jumper wires or 22-gauge hook-up wire Strong double-sided tape or hot glue
The servos should now be taking up the back half of the battery pack.
If you bought a kit, the caster may have come with a few risers that you can use to ensure the caster reaches the ground. i
You may want to lift the robot off of the surface, as it will just continue to move forward once the program is uploaded.
