Jetson Nano Jetbot using some other electronic parts

Hardware

• 1 x Nvidia Jetson Nano
• 1 x Wifi Module
• 1 x Motor Driver L298N
• 4 x or 2 x TT Motor
• 1 x PCA9685 Board
• 1 x Rasp pi Camera v2
• Battery for Motor Driver and Jetson Nano (12V)
• Other accessories such as buck converter, wheels, bolts, nuts, spacer nuts, joystick controller, etc.

Connection and Build

Jetson Image Setup

1. Download Jetson Nano image: Link
2. Boot the downloaded image to an SD card using Etcher
3. Insert the SD card into Jetson Nano
4. Boot up the Jetson Nano

Configuration

On Jetson Terminal:

sudo usermod -aG i2c jetbot
i2cdetect -y -r 1
  

The default PCA address should be 0X40. To change the I2C address in the Adafruit library, navigate to:

cd usr/local/lib/python3.6/dist-packages/Adafruit_MotorHAT-1.4.0-py3.6.egg/Adafruit_MotorHAT
sudo gedit Adafruit_MotorHAT_Motors.py
  

Search for:

def __init__ (self,addr=0x60,freq=1600,i2c=none,i2c_bus=none)
  

Change it to:

def __init__ (self,addr=0x40,freq=1600,i2c=none,i2c_bus=none)
  

Save the file.

The Robot should be remotely controllable via accessing Jupyter Notebook on a browser.

Accessing Jupyter Notebook

On another PC browser:

1. Open the browser and access: https://{jetbot_ip_address}:8888
2. Enter Jetbot password: jetbot
3. All notebooks are ready to use.