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I got myself a Oscilloscope – MSO5102D

2015 November 16
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by admin


It’s a Hantek MSO5102D. See full Details here: http://www.hantek.com/en/ProductDetail_83.html

Review:
http://web.archive.org/web/20150317231035/http://www.legomindstormsrobots.com/miscellaneous/electronics/100mhz-digital-storage-osilloscope-logic-analyzer/

10 Things to consider before buying a Oscilloscope:
http://www.ni.com/white-paper/4333/de/

The Expert

2015 September 3
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by admin

How I revived my iPod classic 4th genation with Flash Memory!!

2015 August 10
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by tobi

Since a very long time, I had my old 4th Generation iPod laying around. With iPhone, SoundCloud & Co, I hadn’t had any use for it – until now: my Camping Van came ‘only’ with a CD Radio and an Aux-In – which is perfect for my Ipod. If it would only work. Battery was down, and even worse – the Harddisk crashed. But a quick google made me hope: there’s indeed a chance to replace the HD with Flash memory. Faster, cheeper and less power consumption. I had to try it.
So I followed those super easy steps Eddie posted on instructables:

http://www.instructables.com/id/Convert-your-4th-Gen-iPod-to-use-Flash-Memory

Main trick is to get a ‘IDE 50 Pin Male zu CF Compact Flash Female Adapter’ – on ebay or similar for just 5 EURs. Compact Flash memory you get for abt. 1EUR per GB, which int total, made the 40GB replacement quite cheap. It just took me minutes to replace the harddrive, including a new Battery. Now my more than 10 years(!!) old iPod works better like never before! Amazing.

Happy Hacking!

UPDATE: make sure you check DIAG-Mode and HW-Reset too:

First what I would do is wait for it to reboot itself and as soon as the screen turns off begin holding the Center + Play/Pause buttons until Your iPod Enters Disk Mode and THEN plug it into your iMac and select “Restore”. =) Also when you get the chance, Hold Menu + Center and as soon as the screen goes out, Hold Center + Previous/Rewind. You will get a White Screen, select “Manual Test” and then go to “IO” then “Hard Drive” and then select Hard Drive Smart Data and type every character on that screen up here, I will be able to tell you if your iPod’s internal hard disk is going bad

https://discussions.apple.com/thread/2609298?tstart=0

Satzuma Missile Launcher finally works with USB Missile Launcher NZ v1.8.2 on Mac

2015 May 23

img8077_14925

Good news: I finally got the Satzuma Missile Launcher working on my Mac Yosemite. Solution it the latest (unfortunately unreleased) version of USB Missile Launcher NZ. You can download USB Missile Launcher NZ v1.8.2 from here, a source I found after digging through the comments of version 1.8.1 announcement:

USB Missile Launcher NZ v1.8.1 – Release

To get started with Satzuma, install v1.8.2, restart you Mac (bummer), open `USB Missile Launcher NZ.app`, go to Preferences -> Launcher and
enter `1046` for VendorId, `3777` for ProductId and change Controls to Satzuma (see screenshot) – Boom! You’re all set – happy shooting!

Screen Shot 2015-05-20 at 11.41.11

Next, I want to check https://code.google.com/p/pymissile – having a working CLI version would be so much better!

Things ‘NOT TO DO’ to a Pinball Machine

2015 May 3
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by tobi

For the record: a great post by Tim Arnold – things ‘NOT TO DO’ to a Pinball Machine:

http://www.zaccaria-pinball.com/misc/arnold.html

HackedTheHouse – and won 2nd Price!

2015 March 3
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Last weekend I attended HackTheHouse, a 24hrs Hackathon in Berlin, organized by Relayr and BSH – all in the Name of IoT. I teamed up with Chris(ccb23), Clemens and Roby from Italy. We had a blast!

We were given a couple of BSH Home appliances, Relayr WunderBars, Arduino, RaspberryPi, Seeedstudio Grove, Nest etc. – so all the Toys a hardware hacker only could think of.

Our idea was to bring FUN the to dull, boring household tasks.  We solve this problem by gamify cleaning duties – regular household tasks are turned into a big game, you score every-time you fulfill a task, as sooner and thoroughly, as more points you get.

After 24hrs we presented a first prototype – including a dishwasher, a smart trashcan and a smart broom. The jury was amazed and we scored the 2nd price!

See our Hacklog, Repository, Pictures and more here:

http://www.hackster.io/hackthehouse/wgheld

Maslow’s pyramid of code review

2015 February 26
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by admin

Must Read:  http://blog.d3in.org/post/111338685456/maslows-pyramid-of-code-review

Great sources for great Software Development

2015 February 2
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There was recently a call on the Softwerkskammer Emailgroup for good sources to improve ones software development skills. Here a summary of all recommendations:

* Buch: Headfirst Design Patterns

* OOSE, Vielleicht hilft Dir das hier weiter: http://www.oose.de/training/objektorientiertes-design-mit-entwurfsmustern/

  – OOSE für die Schulung ‘iSAQB’

* http://www.sigs-datacom.de/seminare/akademien/clean-code-developer.html .

* Videoreihe von Robert C. Martin: http://cleancoders.com

* Robert C. Martin – Agile Software Development, Principles, Patterns, Practices. In this book the notion of SOLID Principles is very well documented. 

* Gang of Four – Design Patterns: Elements of Reusable Object-Oriented Software

* Apprenticeship Patterns http://shop.oreilly.com/product/9780596518387.do 

* Skillsmatters  Von ndc  Oredev

* State: Tennis Kata http://garajeando.blogspot.de/2012/11/refactoring-kata-tennis-to-state-pattern.html

  – Bsp zur Tennis Kata: http://blog.ploeh.dk/2011/05/16/TennisKatawithimmutabletypesandacyclomaticcomplexityof1/

*  “refactoring to patterns” von joshua kerievsky

* Video-seite wurde ich alles von Kevlin Henney

*  “Domain Driven Design” von Eric Evans für Einsteiger ist “implementing Domain driven Design”

* “Being the Worst” podcast 

* m.feathers mit “working effectivly with legacy Code”

* “Refactoring – Improving the Design of Existing Code”. Fowler ist ein Meister des OO-Design und das Buch ist voller Beispiele. http://martinfowler.com/books/refactoring.html

IrDude – A simple android app to control my stereo via IR

2014 December 17
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by admin

I recently wrote a simple Android App which allows me to control my HarmonKardon Avr-35 stereo remotely via IR. Presenting: IrDude.

It uses the an undocumented Samsung IR API, so its unfortunately very much tight to Samsung galaxy note 10.1 tablet. Nevertheless, it does the Job for my, and is hopefully a good starting point for other to do similar. Check http://www.remotecentral.com to find hex codes to support other devices.

https://github.com/rngtng/IrDude

[image from IR PUCK]

Hacking the Pinball machine (Take Two)

2014 November 30
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by tobi

30.Nov 2014

Wow, wow, wow – I finally got my hand dirty hacking. Together with ccb23, I (once again) opened up our Teenage Mutant Ninja Turtles Pinball machine to ‘pirate’ the current game score to throw into teh internetz!

To be honest, it’s take two. We already did so nearly 18 month ago, but failed to document and write about our experience in full. In short, we reverse-engineered the graphic card protocol of the pinball machine, connected an Arduino to listen on the bus and ‘pirate’ the game score. But due to its lack of internet connection we forwarded the data via RFID injection to a Nabaztag Rabbit, which send the message to an API endpoint of a rails application. So what’s left are a couple of prototype projects:

  • A Arduino sketch to listen to the graphic-bus.
  • The NabaztagInjector to send the data via RFID to a WIFI connected Nabaztag rabbit.
  • A rails app & API PinPirate to receive the data, display the score and send out tweets.

Yes, this worked! Proof of concept – done! Unfortunately it turned out that all was very shaky and not very reliable, so we left it for a while until now, back to tackle the challenge again, but this time with a different approach: enter RaspberryPi.

Advantage:
– on board Internet

Disadvantage:
– we have a full OS – access to interrupts way more complicated

ccb23 managed to write a kernel module to direct access to Interrupts: http://elinux.org/RPi_Low-level_peripherals

With this module loaded and the pinball machine connected, listening to the graphic bus is as simple as:
cat /dev/????

GPIOs