c7h

# Install a pip package in the current Jupyter kernel
import sys
!{sys.executable} -m pip install plotly

c7h

#!/bin/bash

ADDRESS=0x27

printf "76543210 76543210\n"
while :
do
  v=$(i2cget -y 0 $ADDRESS 0x00 w)
  echo ${v: -4:4} | xxd -r -p | xxd -b | awk '{split($0,a," "); printf "%s %s\r", a[2], a[3]}'
done

c7h

/* Rotary Dial encoder
encode the rotary dial of an old analog phone.
by Christoph Gerneth
*/
const int active_pin = 2;
const int pulse_pin = 3;

int number_counter = 0;
int last_pulse_state = 0; // last state of the rotary dial pulser
int last_active_state = 0;

c7h

Two versions of the same library behave completely different :-/

the PI

```
Python 3.4.2 (default, Oct 19 2014, 13:31:11) 
[GCC 4.9.1] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import json
>>> try:

c7h

Keybase proof

I hereby claim:

• I am c7h on github.
• I am c7h (https://keybase.io/c7h) on keybase.
• I have a public key ASCdetH8IgkxSS8N_CBwRxZhqthPiFpK-iGS4vlIn1vtUQo

To claim this, I am signing this object:

c7h

#!/usr/bin/perl

my $user_c = 0;
my $user_min = 0;
my @ip = ();

while(<>) {
	if (m/(^\w+).*(\d{2}:\d{2})/) {
		if ($1 eq 'christoph'){
			$user_c++; # user_zaehler erhöhen

c7h

class BinSearchTreeElement(object):
    def __init__(self, data, leftTree=None, rightTree=None):
        self.data = data
        self.left = leftTree
        self.right = rightTree

    def add(self, element):
        if element <= self.data:
            self._insertElement(self.left, element)
        else:

c7h

__author__ = 'Christoph Gerneth'

from csv import DictWriter
from random import randrange
filename = 'data.csv'

label = ['x-axis', 'y-axis']
with open(filename, 'w') as f:
    csvw = DictWriter(f, fieldnames=label)
    csvw.writeheader()

c7h

__author__ = 'Christoph Gerneth'
'''
Decorators are one of the most powerful patterns. They can be used to
inject code in functions, modify them and infuence their beihavior.
[wikipedia](https://en.wikipedia.org/wiki/Decorator_pattern)
Here is an example:
'''
class Tools(object):
  @classmethod
  def sayhello(self, func):

c7h

__author__ = 'Christoph Gerneth'

class SingletonType(type):
    def __call__(self, *args, **kwargs):
        try:
            return self.__instance
        except AttributeError:
            self.__instance = super(SingletonType, self).__call__(*args, **kwargs)
            return self.__instance