Änderungen

BrickUsingMultipleModules (kurzshort: '''BUMM''') ist ein Rätselspiel, das unter dem Theme "Bombenentschärfung" spieltis a riddle game themed around bomb defusals. Angelehnt After an evening of playing [http://www.keeptalkinggame.com/ Keep talking and nobody explodes] geht es darum, unter Zeitdruck verschiedene Rätselmodule lösenI was sure that this had to be transferred to hardware. The goal of defusing multiple modules is the same, um eine Bombe rechtzeitig zu entschärfenbut the hardware implementation calls for some serious changes. Cutting wires was out of the question, since nobody was found to replace them for a new round. Maybe someone will build a robot arm for that in the future.

== Bilder Pictures ==

== Technik = Front panels ===Jedes Modul enthält einen Arduino <gallery>Image:BUMM countdown blink front.jpg |Countdown und manipulation detector aka life counter (oder anderen Controllerleft), der über einen gemeinsamen Bus blink-module (5Vright) via UART kommuniziert ([httpsImage://githubBUMM serial and gates front.com/hackffm/BrickUsingMultipleModules/tree/master/bus_docu Protokoll]jpg|Serial number display (left). Dabei ist jedes Modul von der Logik her eigenständig und gibt nur an, ob es entschärft wurde und ob es eine Manipulation detektiert hatgates-module (right)Image:BUMM in action countdown.jpg |CountdownAls Zentrale fungiert ein Raspberry Pi, auf dem ein Pythonscript mit der gesamten Gamelogik läuftImage:BUMM in action gates. Neben der Buskommunikation stellt dieses auch einen TCPjpg |gates-Server bereit, über den der Brick ferngesteuert werden kann.module</gallery>

=== Backsides ===<gallery>Image:BUMM serial and gates back.jpg|Gates-module (left), serial number display (right)Image:BUMM countdown and md.jpg|Countdown und manipulation detectorImage:BUMM blink module.jpg|Blink-moduleImage:BUMM module b backside.jpg|Gates-module before mounting</gallery>  === Complete Brick ===<gallery>Image:BUMM total side.jpg|Image:BUMM total back.jpg|Image:BUMM total corner.jpg|</gallery> === Details ===<gallery>Image:BUMM bus backplane.jpg|Bus Backplane. Why cut the copper stripes if we only need 5 signals (GND, 5V, Tx, Rx, 12V) anyway?Image:BUMM speaker.jpg|Speaker for beeping and firmly mounted audio amplifierImage:BUMM bus ftdi.jpg|Bus backplane and usb-serial converterImage:BUMM powerpack.jpg|On the last Make Rhein-Main , we had lots of power outages. Not stopping this device!Image:BUMM gui.png|Remote control with countdown, life counter, serial number, configuration and status for each module</gallery> === Basic test video ===Der Brick soll in einer separaten Kammer untergebracht werdenhttps://streamable.com/lxtuu == Background == [[Image:BUMM block diagram.png|200px|thumb|right]] Each module has its own arduino and is connected to a parallel bus backplane ([https://github.com/hackffm/BrickUsingMultipleModules/tree/master/bus_docu speaking 5V UART at 19200 baud]).Each module contains its own logic and only tells the gamemaster whether it has been defused and if any manipulations (mistakes) were detected. The gamemaster is a Raspberry Pi running a python script.Apart from the game logic and audio output, aus der nur auf elektronischem Wege kommuniziert werden kannit opens a TCP socket which can be used to control the game remotely. The network protocol is based on tree structures serialized to JSON and terminated with NULL. All lookuptables and manuals are generated completely automatic from config files using python and make. All material, be it gamemaster scripts, arduino code, * Kammer.tex for manuals or svg files for lasercutting are available on [https: Da vermutlich kein separater Raum zur Verfügung stehen wird//github.com/hackffm/BrickUsingMultipleModules github]. == Modules == === Gates module ===The gates module has 7 LEDs, wäre es cool4 toggle switches and a push button (looking like a switch).Depending on the status of the LEDs, eine kleine Kammer aufzubauenthe toggle switches have to be set correctly, then the RUN button has to be pressed. Als Wandmaterial wurde '''Molton''' vorgeschlagenThere are two instances of the manual, which both evaluate to the same instructions. Einen '''Rahmen''' bräuchte es dafür dann nochThe one which gave the module its name has a big network of binary NAND/NOR gates which take the LEDs as inputs and give output levels that correspond to the switch states.For the less nerdy players, there is a second manual, which lists a lot of rules which reference other rules depending on the LED state. A random gate network is generated using python and visualized using PyGraphViz.Then all possible outcomes are calculated and placed in a big lookup table, which is stored on the arduino.The rules are created by reading the lookup table and pruning.Higher difficulties are achieved by creating larger networks, which depend on more LED states. === Blink module ===The blink module has a red and a green LED, which blink in a specific pattern.Depending on this pattern, a push button below either the red or green LED has to be pressed.Correct solutions are taken from a lookup table (both on the arduino and in the manual).Higher difficulties require multiple iterations and increase the blink frequency and pattern length (and therefore lookup table size). === Planned ===* Ein KommunikationsmediumPCB: Lots of resistors dumped onto a board. Vorgeschlagen wurden '''Feldtelefone''' oder billige '''Funkgeräte'''Find the correct pins to bridge using resistor color codes.* Eine '''Videoübertragung'Balance: Two dots chase each other. One has randomly varying speed, the other'' nach außens speed is controlled using a potentiometer. If one catches the other, insbesondere für die Signalwirkung für potentielle neue Spielerit goes boom. Lutz hatte da schon eine Kamera+Bildschirm angeboten* High stakes: Spray cold water onto the handler on explosion or failures. Hätten wir noch einen zweitenAlternative: One button which has to stay pressed the whole time (also makes handling harder) gets wired to a shocker. == Manuals ==* [[Medium:BUMM manual en.pdf|Introduction]]* [[Medium:BUMM manual en b.pdf|Gates module]]* [[Medium:BUMM manual en d.pdf|Blink module]]* [[Medium:BUMMleicht.pdf|Eine Anleitung für Jünglinge (german)]]  === Make Rhein-Main 2017 ===Bringing a bomb mockup to a fair - what could possibly go wrong?BUMM was present on the [https://make-rhein-main.de/ Make Rhein-Main 2017]. There is also a short [https://streamable.com/bikcu clip]. The BUMM was placed in a small chamber built just for this weekend. It is made of a wooden frame with black stretch foil. Of course, we also needed warning tape.Communication is done using a field telephone to the booth, where the manuals were located.As an eye catcher, we made a live video feed using extra crappy cables for an analog S-Video camera. <gallery>Image:BUMM MRM2017 chamber.jpg|Chamber for the BUMMImage:BUMM MRM2017.jpg|Inside the chamber there is also a video camera for live feed and an FF-OB/ZB field telephone to our boothImage:BUMM MRM notes.jpg|Lots of notes have been taken</gallery> == Links ==* [https://github.com/hackffm/BrickUsingMultipleModules Github repository]