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{{ProjektInfoBox
|name = Doomsday Device
|status = stable
|image = doomsdaydevice.jpg
|description = Ein Doomsday Device fürs Space
|author = phip
|username = phip
|version =
|update =
|platform = Arduino
|license = GPL-3
|download = [https://github.com/devtal-de/doomsday_device Github]
}}

Das '''Doomsday Device''' ist ein Arduino gesteuertes Dingens, welches die Zeit bis zum Doomsday Anzeigt. Es wurde komplett aus Einzelteilen hergestellt, die im Space herumflogen.

[[Datei:doomsdaydevice.jpg|480px|thumb|center|Das Doomsday Device am 2016-12-15]]

Mt einem Floppy-Flachbandkabel wurde gleichzeitig ein knuffiges Steckbrett realisiert.

Der Quellcode des Doomsday Devices:

<syntaxhighlight lang="C">
/*
* doomsday.c - small, shiny Doomsday Device Controller
* Copyright (C) 2016-2017, phip (/dev/tal e. V.)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/

char a = 0; // a
char b = 1; // f b
char c = 4; // g
char d = 7; // e c
char e = 8; // d
char f = 2; //
char g = 3; // see <https://de.wikipedia.org/wiki/Segmentanzeige>
char ld = 6; //
char rd = 5; //
enum {nn = 5}; //

char l[nn] = {9, 10, 11, 12, 13};
unsigned int del = 1000;
unsigned int plexdel = 1;

void nOut(char n) {
switch(n) {
case 0:
//default:
digitalWrite(a, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, LOW);
digitalWrite(g, HIGH);
digitalWrite(ld, HIGH);
digitalWrite(rd, HIGH);
break;

case 1:
digitalWrite(a, HIGH);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, HIGH);
digitalWrite(e, HIGH);
digitalWrite(f, HIGH);
digitalWrite(g, HIGH);
digitalWrite(ld, HIGH);
digitalWrite(rd, HIGH);
break;

case 2:
digitalWrite(a, LOW);
digitalWrite(b, LOW);
digitalWrite(c, HIGH);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, HIGH);
digitalWrite(g, LOW);
digitalWrite(ld, HIGH);
digitalWrite(rd, HIGH);
break;

case 3:
digitalWrite(a, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, HIGH);
digitalWrite(f, HIGH);
digitalWrite(g, LOW);
digitalWrite(ld, HIGH);
digitalWrite(rd, HIGH);
break;

case 4:
digitalWrite(a, HIGH);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, HIGH);
digitalWrite(e, HIGH);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
digitalWrite(ld, HIGH);
digitalWrite(rd, HIGH);
break;

case 5:
digitalWrite(a, LOW);
digitalWrite(b, HIGH);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, HIGH);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
digitalWrite(ld, HIGH);
digitalWrite(rd, HIGH);
break;

case 6:
digitalWrite(a, LOW);
digitalWrite(b, HIGH);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
digitalWrite(ld, HIGH);
digitalWrite(rd, HIGH);
break;

case 7:
digitalWrite(a, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, HIGH);
digitalWrite(e, HIGH);
digitalWrite(f, HIGH);
digitalWrite(g, HIGH);
digitalWrite(ld, HIGH);
digitalWrite(rd, HIGH);
break;

case 8:
digitalWrite(a, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
digitalWrite(ld, HIGH);
digitalWrite(rd, HIGH);
break;

case 9:
digitalWrite(a, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, HIGH);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
digitalWrite(ld, HIGH);
digitalWrite(rd, HIGH);
break;
}
}

void getOut(unsigned int n){
char z[nn] = {char(n/10000), char((n/1000)%10), char((n/100)%10), char((n/10)%10), char(n%10)};

unsigned int countadd = del/plexdel;
unsigned int count = 0;

while(count<del) {
for (char i=0; i<nn; i++){
for (char j=0; j<nn; j++){
if (i != j) digitalWrite(l[j], LOW);
else digitalWrite(l[j], HIGH);
}
nOut(z[i]);
delay(plexdel);
count++;
}
}
}

void setup() {
pinMode(a, OUTPUT);
pinMode(b, OUTPUT);
pinMode(c, OUTPUT);
pinMode(d, OUTPUT);
pinMode(e, OUTPUT);
pinMode(f, OUTPUT);
pinMode(g, OUTPUT);
pinMode(ld, OUTPUT);
pinMode(rd, OUTPUT);

for (char i=0; i<nn; i++){
pinMode(l[i], OUTPUT);
digitalWrite(l[0], LOW);
}

digitalWrite(a, LOW);
digitalWrite(b, LOW);
digitalWrite(c, LOW);
digitalWrite(d, LOW);
digitalWrite(e, LOW);
digitalWrite(f, LOW);
digitalWrite(g, LOW);
digitalWrite(ld, LOW);
digitalWrite(rd, LOW);
}

void loop() {
unsigned int i = 21600;
while (i>0) {
getOut(i);
i--;
}
getOut(0);
}
</syntaxhighlight>

Auch auf [https://github.com/devtal-de/doomsday_device Github] zu haben.

Dieses Projekt zeigt auch, was Menschen vollbringen können, wenn es ein mal kurz langweilig wird und sie eigentlich Mal eben die Welt retten sollten.

Doomsday Device - Versionsgeschichte

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