To ensure that Rapid Reponse work there are two main hardware components that you must have:

• Raspberry Pi 3B+ or higher (for this project we used a Raspberry Pi 4)
• Luxonis usb Camera that can be found here (the camera that we used for the project is the Oak-D pro)

Since we are using the Luxonis api there are software dependancy installations that is needed: Raspberry Pi OS The package can also be installed through PyPI here

For the trigger we made the Rasberry Pi a Access Point (AP) the steps that we followed are documented here

To further troubleshoot these were the commands that we ran to ensure that each steps and configurations were properly ran:

• sudo apt install hostapd dnsmasq iptables
• sudo systemctl stop hostapd
• sudo systemctl stop dnsmasq
• sudo nano /etc/dhcpcd.conf
• sudo systemctl restart dhcpcd
• systemctl daemon-reload
• sudo nano /etc/hostapd/hostapd.conf
• sudo nano /etc/default/hostapd
• sudo nano /etc/init.d/hostapd
• sudo nano /etc/dnsmasq.conf
• sudo nano /etc/sysctl.conf
• sudo sh -c "echo 1 > /proc/sys/net/ipv4/ip_forward"
• sudo iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
• sudo systemctl unmask hostapd
• sudo systemctl enable hostapd
• sudo systemctl start hostapd
• sudo service dnsmasq start
• systemctl daemon-reload
• sudo reboot

For the Arduino script ensure that the proper library is installed which can be found here

The full documentation steps on how to do the startup can be found here

vi /etc/systemd/system

[Unit] Description=Rapid Response Startup Serivce

[Service] After=network-online.target Wants=network-online.target Type=idle User=pi # change to the user for your raspberry pi ExecStart=/usr/bin/python3 /home/pi/Desktop/rrl_startup_script.py # change to where the startup script is located Restart=always RestartSec=5s

[Install] WantedBy=multi-user.target