"Step 1: Raspberry PI config
To set up your webcam using motion:
Connect to RPI:
sudo apt-get update
sudo apt-get upgrade sudo apt-get install nano sudo apt-get install motion
To edit a motion file:
sudo nano /etc/default/motion
Change the following line:
start_ motion_ daemon=yes
Edit profile:
sudo nano /etc/motion/motion.conf
And change or check the following parameters:
set “daemon on” set “minimum_ frame_ time 3” set “quality 80” set “webcam_ port 8081” set “control_ port 8080” set “webcam_ Localhost off "cm3 = 1"
。
To view the displayed picture now, open the browser at http: / / youripaddress: 8081
。
。
More about sports:
http：//www.lavrsen.dk/foswiki/bin/view/Motion/WebH 。..
Step 2: Raspberry PI config (wiringpi)
To install wiringpi, you need to install git core first.
set “width 640”
Then, get the wiringpi file:
set “height 480” sudo service motion restart sudo apt-get install git-core
You can check the installation in the following ways:
git clone git://git.drogon.net/wiringPi
Results will
。
For more information, visit:
http://wiringpi.com
http：//connectionpi.com/the-gpio-utility/
Step 3: Raspberry PI configuration (Apache Web server + PHP)
To install Apache and PHP5:
cd wiringPi
To check that Apache is running, open the browser and go to http://youripaddress
You should get the default page "it works" (Figure 1).
To check your PHP installation:
。/ build gpio -v
gpio readall
Insert the following line
？》
Then open the browser and go to http://youripaddress/info.php
You should get the PHP information page (picture 2).
。
Install a web interface to control your mobile car
Extract the file from web.tar.gz to / var / www/
sudo apt-get install apache2 php5 libapache2-mod-php5 cd /var/www
。
Change line 31 in / var / www / index.php and replace 0.0.0.0 with your wlan0 IP address.
。
Let PI users access web folders
sudo chown -R pi：www-data/var/www
sudo gpasswd -a pi www -data
。
Now open your browser at http://youripaddress/index.php
You should get a result similar to the screenshot of your phone (Figure 3)
Step 4: upload the file to Arduino
Upload this sketch to your Arduino or download year-sketch.ino
#include Servo Vservo;
int Hstate = 90;
int Vstate = 90;
int in1 = A2;
int in2 = A3;
int in3 = A4;
int in4 = A5;
int camup = 6;
int camdown = 7;
int camleft = 8;
int camright = 9;
int p2;
int p3;
int p4;
int p5;
int p6;
int p7;
int p8;
int p9; void setup（）{ Vservo.attach（11）;
pinMode（A2，INPUT）;
pinMode（A3，INPUT）;
pinMode（A4，INPUT）;
pinMode（A5，INPUT）;
pinMode（6，INPUT）;
pinMode（7，INPUT）;
pinMode（8，INPUT）;
pinMode（9，INPUT）;
pinMode（2，OUTPUT）;
pinMode（3，OUTPUT）;
pinMode（4，OUTPUT）;
pinMode（5，OUTPUT）;
}
void loop（）{
p2 = AnalogRead（A0） ）;
P3 = analog read (A1);
P4 = analog read (A2);
P5 = analog read (A3);
P6 = digital reading (camup);
P7 = digital reading (camdown);
p8 = digitalRead（camleft）;
p9 = digitalRead（camright）;
if（p6 == LOW || p7 == LOW）
stop（）;
If (P6 = = high | P7 = = high) horizontal();
if（p8 == HIGH || p9 == HIGH ）
vertical（）;
if（p2》 512）
forward（）;
if（p3》 512）
backward（）;
if（p4》 512）
left（）;
if（p5》 512）
right（）;
}
void horizontal（）
{
if（p6 == HIGH && p7 == LOW）
{Hstate = Hstate + 2; }
if（p6 == LOW && p7 == HIGH）
{Hstate = Hstate-2; }
if（p6 == HIGH && p7 == HIGH）
{Hstate = 90; }
if（Hstate》 = 180）Hstate = 180;
if（Hstate 《= 0）Hstate = 0;
Hservo.write（Hstate）;
delay（150）;
}
void vertical（）
{
if（p8 == HIGH && p9 == LOW）
{Vstate = Vstate + 2; }
if（p8 == LOW && p9 == HIGH）
{Vstate = Vstate-2; }
if（p8 == HIGH && p9 == HIGH）
{Vstate = 90; }
if（Vstate》 = 180）Vstate = 180;
if（Vstate 《= 0）Vstate = 0;
Vservo.write（Vstate）;
delay（150）;
}
void forward（）
{
digitalWrite（2，HIGH）;
digitalWrite（3，LOW）;
digitalWrite（4，HIGH）;
digitalWrite（5，LOW ）;
}
Invalid backward ()
{
digitalWrite（2，LOW）;
digitalWrite（3，HIGH）;
digitalWrite（4，LOW）;
digitalWrite（5，HIGH）;
}
void left（）
{
digitalWrite（2，HIGH）;
digitalWrite（3，LOW）;
digitalWrite（4，LOW ）;
digitalWrite（5，HIGH）;
}
void right（）
{
digitalWrite（2，LOW）;
digitalWrite（3，HIGH）;
digitalWrite（4，HIGH）;
digitalWrite（5，LOW）;
}
void stop（）
{
digitalWrite（2，LOW）;
digitalWrite（3，LOW ）;
digitalWrite（4，LOW）;
digitalWrite（5，LOW）;
}
The servo library shall be installed
Step 5: plug and play!
-Set the mobile station wheel (and motor)
-Set up server and webcam
-Connect the H-bridge to the motor
-Connect the H-bridge to Arduino
-Connect raspberry to Arduino
-Insert the camera into raspberry
-Connect the battery to the H-bridge and plug Arduino and rasperry into the mobile power supply.
Responsible editor: WV, read the full text“
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