not-kiwi-bot

Definitely not trying to copy the Kiwi Bot (https://www.kiwicampus.com/). Class project for MAE 148 at UC San Diego.

Accreditation

Fritzing Parts

GP-20u7

We use the GPS (GP-20U7) fritzing part from the Johnny-Five javascript robotics platform. The author is Rick Waldron and the johnny-five repo has many fritzing parts.

PCA9685

PCA9685 Breakout Board Part

Overall Wiring

Raspberry Pi 3 Pinout

GPS GP-20U7

GPS module from sparkfun.

Wiring

GP-20U7	Raspberry Pi	Reason
VCC	3.3V	Power
GND	GND	Ground
TX	RX	Receive Data
RX	No Connect	Don't need to send to GPS.

Installations

pip install pyserial

Execute

$ python gps.py

Your output should look like this:

(dk) **pi@ucsdrobocar03**:**~/not-kiwi-bot $** python gps.py
(32.88242833333334, -117.23458166666667)

(32.88242833333334, -117.23458166666667)

(32.88242833333334, -117.23458166666667)

(32.88242833333334, -117.23458166666667)

Debugging program running on fake data:

python gps.py fake

Resources and Lessons Learned

Project GPS

We build off the project team from Project GPS. Documentation Repository

Python

Decoding Bytes to String Bytes

Raspberry Pi

Wif Priority Serial Ports Bluetooth ON may switch serial from /dev/ttyAMA0 to /dev/serial0.