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About ao2

Hi,

my name is Antonio Ospite: I am a lazy Computer Scientist from Naples in Italy, not in Florida.


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JMP-rope, the theory and the software

The mathematical model behind the JMP-rope, as for any rotating POV system, is the polar coordinate system.


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JMP-rope, the hardware

The hardware of the first JMP-rope prototype is very simple:

JMP-rope internals overview
JMP-rope handle detail
JMP-rope LED strip tied to the rope
JMP-rope programming socket
JMP-rope lit up

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JMP-rope, the programmable jump rope

Mix sport, technology and art and you get the perfect project.

I really enjoy art even though I am not much of an artist myself, I am definitely a technologist (more of a researcher of technology than a user TBH), and I've become a sports person too in the latest years, in particular I discovered how jumping rope can be a fun way to do cardio, way funnier than playing hamster on the treadmill; and each time I was jumping rope I started thinking about a tech project involving a jump rope.

JMP-rope logo
JMP-rope ao2 logo
JMP-rope ao2.it
JMP-rope Debian logo
JMP-rope Firefox logo
JMP-rope Adafruit logo
JMP-rope Openhardware logo
JMP-rope Opensource logo
JMP-rope S.S.C.Napoli logo

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DIY wire-wrapping tool

Wire-wrapping is a very handy way to connect wires to PCB pins, especially in two scenarios:

  1. As an alternative to soldering, in order to be able to easily recycle the components.
  2. As an alternative to female jumper wires, in order to save some vertical space (sometimes jumper wire connectors are just too long).
metallic pen cartridge
hole in the cartridge
wire wrapping tool
wire setup
wrapping the wire
wire wrapped
wire wrapped on a trinket

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Jump rope hacking with zip ties

If you have a jump rope with ball bearing handles you can use zip ties to hack them into one of those fancy “speed ropes”.

And yes, I am kind of into jumping rope these days.

jump rope original
jump rope internals
jump rope zip tie
jump rope hack proof of concept
jump rope hacked

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The chaos of English pronunciation

Interesting text about English pronunciation: The Chaos by Gerard Nolst Trenité.


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AKOP updates: Debian and Linux

A due update to my AKOP “work”: a Debian and a Linux versions could not be avoided.


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Altoids: Exercises in Style

After my cool non-sense story about Android 5 I wanted to get back again to the Altoids theme and expand a bit on it.

Android Blue Knock-Off
Android Green Knock-Off
Android Red Knock-Off
Antonio Red Knock-Off
Arduino Knock-Off
Debian Knock-Off
Ladyada Knock-Off
Linux Knock-Off