#PiTank The PiTank is a small RC car with a Raspberry Pi for a brain. It is controlled over a Wi-Fi network through socket.io and node.js, and streams back live video from an on-board webcam. The PiTank gets power from 12V battery and a switching voltage regulator for a steady five volts.
#What you need
- Raspberry pi
- SD card with > 2GB capacity
- Usb WiFi dongle for the Raspberry pi
- Recycled Car with 2 DC motors
- 12V battery
- L293D driver
- Usb Webcam or any recycled notebook webcam (i used the acer crystal eye from the aspire 5720)
- HC-SR04 Ultrasonic Distance Sensor Module
- DS18B20 temperature sensor
#Preparing raspberry pi
###Install Raspbian Debian Wheezy http://www.raspberrypi.org/documentation/installation/installing-images/README.md
###Install Apache2/php5/Postgresql
- sudo apt-get install apache2
- sudo apt-get install php5 libapache2-mod-php5
- sudo apt-get install postgresql
- sudo apt-get install php5-pgsql
###Configure Postgresql
- sudo -u postgres createuser pi
- sudo -u postgres createdb pi
###Connecting to the PostgreSQL database from Python sudo apt-get install python-psycopg2D
###Turn the Raspberry Pi into a WiFi router http://andypi.co.uk/?page_id=220
###Install the DHCP server https://learn.adafruit.com/setting-up-a-raspberry-pi-as-a-wifi-access-point/install-software
###Install MJPG-Streamer http://blog.miguelgrinberg.com/post/how-to-build-and-run-mjpg-streamer-on-the-raspberry-pi
#Configuration Copy the files in the conf directory into the raspberry pi, in these directory:
/etc/network/interface
/etc/dhcp/dhcpd.conf
/etc/hostapd/hostapd.conf
#Schema
#TODO
- reading temperature value and humidity
- using the ultrasonic sensor to avoid obstacles
- dhcp server sometimes does not work