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GoPiGo2 Raspberry Pi Robot Kit: Body And Brain Assembly - Part 1

Monday, July 18, 2016

I am testing out the GoPiGo2 Raspberry Pi Robot Kit from Dexter Industries, which is a nifty robot starter kit that comes with a Raspberry Pi B+ Mini Wifi Dongle, Servo, Ultrasonic Sensor,  micro SD Card (with software), Power Supply, and Ethernet Cable.
1 DC barrel jack adapter included
1 red velcro strap in the box
Today, I am covering the Assembly (Part 1), which will be setting up the body and brain of the robot. In the starter kit, you get the following hardware for assembling the GoPiGo2 robot:
Update: Part 2 - Functionality Test
Part 3 - Servo Assembly
Part 4 - Ultrasonic Sensor Attachment 
Part 5- Controlling GoPiGo Remotely From Keyboard
Part 6 - Obstacle Detection Robot
Part 7 - Connecting to The GoPiGo Without A Home Network
Part 8 - The Brain Of The GoPiGo Robot

2 acrylic plastics
2 wheels
4 acrylic spacer donuts, 4 acrylic Ts & encoders
2 motors
Screws, support posts & washers
1 caster wheel with bolts and support posts
1 GoPiGo board
1 battery Box (that fits 8 AA batteries)
Ultrasonic sensor
Micro SD Card
Servo Package

Here is the entire base kit laid out:
(2 mini posts, 2 small posts, and 4 long posts; 4 long bolts, 
20 small screws, 20 washers, 8 small nuts, and 1 caster wheel)

After figuring out the right side up of the largest acrylic piece, it is a matter of attaching the acrylic Ts to the motors using the long bolts, small nuts and washers (don't forget to put a washer in each long bolt).
two small support posts secured by two small screws
washers face up, while the motors are attached to the bottom of the acrylic
Before attaching the acrylic encoders and wheels, attach the green spacer donuts to the shafts of the motors (one spacer per shaft) to keep the encoders and the wheels in proper distance from the motors.

Attaching the encoders completes the body assembly of the GoPiGo so, it's now a matter of placing the GoPiGo board onto the small support posts and securing it with two screws. You will see the optical encoders lining up in their surrounding encoders.

Now, attach the caster wheel to the back of the GoPiGo using the caster wheel support posts.

Time now to attach the wheels to the assembly body of the GoPiGo2 robot. Make sure you add the spacers in between the wheels to prevent the wheels from rubbing on the body.
After all that's done, it's time now to attach the Raspberry Pi 2, which completes the brain of the robot and will allow us to program the robot with commands to execute. To do this, we attach the canopy posts with the washers and screws provided.
Raspberry Pi Model B+
Raspberry Pi connected to the GoPiGo board via the GPIOs
The delicate part of this process is inserting the micro SD card to the Raspberry Pi which will serve as the hard drive of the Raspberry Pi 2. You want to handle the micro SD card with care and you don't want to take the micro SD card unless the power is off to avoid corrupting the card.
Here is how the robot looks like so far:

Stay tune for Part 2 of the GoPiGo2 Raspberry Pi Robot Kit, which will be connecting the battery pack and setting the WiFi on the GoPiGo2, as well as testing and doing the software update. Hope you enjoyed Part 1!

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