worry about the wire colors at this time, as you will be
testing the PBOD later.
Insert the battery connector as shown in Figure 22.
Attach the controller cable labeled CH1 to channel 1 on
your receiver. Attach the controller cable labeled CH2 to
channel 2 on the radio. Connect the controller cable labeled
“Flip” to the terminals on the radio labeled “Bat.” The
yellow wires should face the center of the radio as you can
see in Figure 23.
Testing the PBOD
At this point, you can test your motor hookup.
Power up your bot by attaching a battery to the
battery connector. If you have not done so yet, bind your
transmitter to your radio. With the bot and radio powered
up, move the elevator control forward slightly and make a
note of the direction the wheels want to turn. Depending
on what the bot does, you will need to perform one of the
• Both sets of wheels move forward: Radio is set up.
• If one side moves forward and one side moves
backwards: Reverse the wires on the side that moves
• If both sets move backwards: Reverse the elevator
axis on the radio.
Once the bot is moving forward and backwards
according to the way you move the elevator control, you
can move on to the turn control test.
Move the aileron control left and right. If the bot does
not follow the control, you will have to reverse it.
That’s it! Take your bot for a spin.
You might be asking, what are we going to do with all
that payload space? Figure 24 shows a small camera that I
attached to the bot. This camera connects to a transmitter
that sends video back to it which lets me drive the bot all
around the shop and lab without having to leave my chair.
You can find the STL files for the various parts on the
PBOD web page at www.kronosrobotics.com/pbod.
In addition, I will place some tire, wheel, and chassis
parts up on my website for those of you who don’t own a
3D printer. Next month, we will be looking into a top
platform that will hold our spinner weapon system.
Please be sure to post questions and suggestions in the
SERVO Magazine forums at http://forum.servo
magazine.com/viewtopic.php?f=49&t=17029 or at the
article link. SV
52 SERVO 01.2014