lazerpaw

Cat lazer chase project.

Running

lazerpaw is designed to run on a Raspberry Pi Zero W2.

It can run on a Rapsberry Pi Zero W, but will require a reduced frame rate to deal with the image processing load; which leads to jumpier control.

Raspberry Pi

Se below for instructions on installing dependencies.

Run with:

python3 -m lazerpaw

Running as a service

You can set lazerpaw as a service so that it runs automatically. To configure lazerpaw as a service:

./service/addService.sh

And then run it as a user service:

systemctl --user start lazerpaw

To run on boot:

systemctl --user enable lazerpaw

To inspect logs:

journalctl --user -u lazerpaw --since "10 minutes ago"

Running the Simulator

The simulator should work on any operating system. I run it on a macbook.

Install the following dependencies:

python3 -m pip install flask opencv-python numpy

To run the simulator:

python3 -m simulate

Machine setup

Rapsberry Pi Zero W2

Run the following to install dependencies:

sudo apt update
sudo apt install pigpio python3-pigpio python3-opencv python3-numpy python3-flask

Run the PiGPIO daemon (for good servo control)

sudo systemctl enable pigpiod
sudo systemctl start pigpiod

Enable the serial port

• Call sudo raspi-config
• Navigate to the Interface Options
• Select Serial Port
• Select <NO> for making a login shell accessible over serial
• Select <YES> for enabling the serial port hardware