b-oern

#!/bin/sh
gpio mode 1 out
gpio mode 4 out
gpio mode 5 out
gpio mode 6 out

s=0.01s
i=1
while [ $i -le 25 ]
do

b-oern

pi@raspberrypi ~ $ gpio readall
+----------+------+--------+------+-------+
| wiringPi | GPIO | Name   | Mode | Value |
+----------+------+--------+------+-------+
|      0   |  17  | GPIO 0 | IN   | Low   |
|      1   |  18  | GPIO 1 | IN   | Low   |
|      2   |  27  | GPIO 2 | IN   | Low   |
|      3   |  22  | GPIO 3 | IN   | Low   |
|      4   |  23  | GPIO 4 | IN   | Low   |
|      5   |  24  | GPIO 5 | IN   | Low   |

b-oern

server.modules = (
        "mod_access",
        "mod_alias",
        "mod_compress",
        "mod_redirect",
       "mod_rewrite",
"mod_fastcgi"
)

server.document-root        = "/var/www"

b-oern

pi@raspberrypi / $ sudo iwlist wlan0 scan
wlan0     Scan completed :
          Cell 01 - Address: 00:2D:A0:7B:63:21
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=55/70  Signal level=-55 dBm
                    Encryption key:on
                    ESSID:"Innen"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s

b-oern

$ which ifconfig
/sbin/ifconfig
$ echo $?
0
$ which non_existing_app
$ echo $?
1

b-oern

// Schrittmotor ansteuerung

int pinA = 10;
int pinB = 11;
int pinC = 12;
int pinD = 13;

void setup() {                
  pinMode(pinA, OUTPUT);
  pinMode(pinB, OUTPUT);

b-oern

# Single Line Commen
class MyClass:
    """Multiline"""
    i = 12345
    def f(self):
        print dir(self)
        return 'hello world'
        
obj = MyClass()
obj.f();

b-oern

pi@raspberrypi ~/cpp/opencv $ time ./DisplayImage /pi/a.png
real    0m2.628s
user    0m2.280s
sys     0m0.050s

b-oern

cmake_minimum_required(VERSION 2.8)
project( DisplayImage )
find_package( OpenCV REQUIRED )
add_executable( DisplayImage DisplayImage.cpp )
target_link_libraries( DisplayImage ${OpenCV_LIBS} )

b-oern

sudo apt-get install build-essential cmake git-core libgtk2.0-dev pkg-config python-dev python-numpy libavcodec-dev libavformat-dev libswscale-dev