mvaz

Raspberry Pi, WiFi and motion sensors

My notes on setting up a Raspberry Pi with an Edimax EW-7811UN WiFi Dongle and motion sensors.

We intend to use a few Raspberry Pis around the office, in order to find out if certain rooms are beeing used or not. For this, we need to get WiFi and a motion sensor working.

mvaz

#!/bin/bash

# This script can be used in "run & hope" mode or you can use it as a recipe to
# do things manually - you probably want the latter if you really care about
# the data in your databases.
# Happy hacking
# /Eoin/

# Tell bash to stop if something goes wrong
set -e

mvaz

#  Copyright (C) 2013 Istituto per l'Interscambio Scientifico I.S.I.
#  You can contact us by email (isi@isi.it) or write to:
#  ISI Foundation, Via Alassio 11/c, 10126 Torino, Italy.
#
#  This work is licensed under a Creative Commons 4.0
#  Attribution-NonCommercial-ShareAlike License
#  You may obtain a copy of the License at
#  http://creativecommons.org/licenses/by-nc-sa/4.0/
#
#  This program was written by Andre Panisson <panisson@gmail.com> at

mvaz

contract MetaCoin {
	mapping (address => uint) balances;
  	event Transfer(address _from,address _to, uint _amount); 

	function MetaCoin() {
		balances[tx.origin] = 10000;
	}

	function sendCoin(address receiver, uint amount) returns(bool sufficient) {
		if (balances[msg.sender] < amount) return false;