Video Car

Raspberry Pi like a Wifi Router

Upgrade Raspberry Pi software 

sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade


lsusb
iw list

See if exits Mode:AP it is an access point compatible router


Install this packs

sudo apt-get install isc-dhcp-server hostapd


Config DHCP Server

sudo cp /etc/dhcp/dhcpd.conf /etc/dhcp/dhcpd.conf.orig
sudo nano /etc/dhcp/dhcpd.conf

#option domain-name "example.org";
#option domain-name-servers ns1.example.org, ns2.example.org;
authoritative;

Add

subnet 192.168.2.0 netmask 255.255.255.0 {
range 192.168.2.2 192.168.2.30;
option broadcast-address 192.168.2.255;
option routers 192.168.2.1;
default-lease-time 600;
max-lease-time 7200;
option domain-name "local";
option domain-name-servers 8.8.8.8, 8.8.4.4;
}


sudo cp /etc/default/isc-dhcp-server /etc/default/isc-dhcp-server.orig
sudo nano /etc/default/isc-dhcp-server


INTERFACES="wlan0"


sudo cp /etc/network/interfaces /etc/network/interfaces.orig
sudo nano /etc/network/interfaces


auto lo
iface lo inet loopback
iface eth0 inet dhcp
allow hotplug wlan0
iface wlan0 inet static
address 192.168.2.1
netmask 255.255.255.0


sudo ifconfig wlan0 192.168.2.1


Config Access Point

sudo cp /etc/hostapd/hostapd.conf /etc/hostapd/hostapd.conf.orig
sudo nano /etc/hostapd/hostapd.conf


interface=wlan0
ssid=RaspiAP
hw_mode=g
channel=6
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wpa=2
wpa_passphrase=password
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP


sudo cp /etc/default/hostapd /etc/default/hostapd.orig
sudo nano /etc/default/hostapd


DAEMON_CONF="/etc/hostapd/hostapd.conf"


Config to route traffic 

sudo cp /etc/sysctl.conf /etc/sysctl.conf.orig
sudo nano /etc/sysctl.conf


net.ipv4.ip_forward=1


sudo sysctl -p /etc/sysctl.conf


Enable NAT

sudo iptables -t nat -A POSTROUTING -j MASQUERADE


Config startup 

sudo update-rc.d hostapd enable
sudo update-rc.d isc-dhcp-server enable

sudo mv /usr/share/dbus-1/system-services/fi.epitest.hostap.WPASupplicant.service /home/pi


Run Html_Server

pi@raspberrypi:~/Sunfounder_Smart_Video_Car_Kit_for_RaspberryPi/html_server $ sudo python manage.py runserver 0.0.0.0:8000

Browse http://192.168.2.1:8000/ to see all available commands

Request Method:
GET
Request URL:
http://192.168.2.1:8000/
Using the URLconf defined in html_server.urls, Django tried these URL patterns, in this order:

^admin/
^motor/forward
^motor/backward
^motor/stop
^camera/increase/y
^camera/decrease/y
^camera/increase/x
^camera/decrease/x
^camera/home
^motor/set/speed/(\d{1,3})
^turning/(\d{1,3})
^calibrate/getconfig
^runmode
^calibrationmode
^calibrate/turning/(.)/(\d{1,3})
^calibrate/motor/run
^calibrate/motor/stop
^calibrate/motor/left/reverse
^calibrate/motor/right/reverse
^calibrate/confirm
^calibrate/pan/(.)/(\d{1,3})
^calibrate/tile/(.)/(\d{1,3})
^test/(.)/(\d{0,3})
^client/
The current URL, , didn't match any of these.

Browse http://192.168.2.1:8000/client

See a html client like the image :