Thursday, May 31, 2012

Computer controlled devices? (4)

Now I have the triggers in their places, 50 of them, and 25 of them wired to triggering line number 1:

You can see two lines of transistors in the lower section, and the lowest line of transistors wired to one lane:
They will be the "on" trigger, and line of transistors above that will be "off" line. Then there are three 4017's, which will select the led, and then by using triggers, the corresponding led will go on or off accordingly.

There will be a lot of wiring, and three meters of cable won't probably be enough.

Saturday, May 26, 2012

Computer controlled devices? (3)

Now I have few parts at their right places:
LED's at top, thyristor's in the middle, and PNP transistors in the lowest part. The original controlling idea will be used partially, because LED's will be light up with two or three 4017 decade counters, so the new structure will be:

1. Select LED (via 4017 row)
2. Chose trigger (I will buy some NPN transistors later)
       2.1 Light up LED trigger
       2.2 Shut down LED trigger
       2.3 Shut down every LED (full reset)
3. Reset command chips (4017)

I will use a lot of space on the bread board, so I could easily debug stuff.

There is a lot of work to be done, and I have last few days at school and then summer job, so it wont be as fast as I would like it to be, but I'm working on it, so it will be ready one day (this summer?). I'm also working on smaller projects, that I will upload here too ;-)

Friday, May 18, 2012

Computer controlled devices? (2)

Project log number 2:

Yesterday I bought 25 transistors, 25 thyristors and 25 LED's, and from those I will make the first test system to  see if everything works. It will be easier to see with only LED's connected, and I will be able to adapt most of the work to later projects, just running another transistor after the LED's, and I will still be able to debug with lights to indicate what is the system doing.
                                                         ^^The components I Bought

I will also do this on breadboard, so switching burned out components will be easier xD

The controlling mechanism will be consisting of three messages:
1. Column of commands on the IC's , so for example I can divide LED's in four blocs etc.
2. The actual command, for example "light up LED 3"
3. Reset. Resets The IC's to be able to take the next command (so I can light up another LED) or reset all, which will also turn off LED's.

The columns I will make out of counter IC's, like the 4017 chip or so, but first things first, the LED's have not been put on breadboard, and I'm away from the components.

Thursday, May 17, 2012

Computer controlled devices?

So I totally got the best idea ever: I'm gonna make a serial/parallel port controller for devices, and maybe later on get to the system operate robotic stuff. So I've been digging up some plans and I'm starting with C/++ or PHP. And by sending decimal values from 0 to 255 I could theoretically power up some controllers, like transistors. The way to this is  by sending decimal value, it gets converted into binary and  if i send 255, all pins are on, and if I send 0, no pins are doing stuff, and so on. Now by using timers to be triggered by this, I can be farely accurate of how long a motor will run and this will enable me to calibrate, and check positions of motors or other components. What I should do, I don't know, what will I do? Well lets say it will be awesome! :D


Wednesday, May 16, 2012

How to get rid of "Attribution" widget

Now I got annoyed to this "Attribution" widget right in the bottom section of this blog. So I got rid of it. It was a bit of a hassle, but I made it a deleteable widget, and deleted it. Here's how I did it without too much of technical terms:

I chose to edit the HTML code of the page, and changed the

<b:widget id='Attribution1' locked='true' title='' type='Attribution'/>


<b:widget id='Attribution1' locked='false' title='' type='Attribution'/>

and this enabled me the option to delete this annoying widget. I found out that this can be found by pressing ctrl-f and typing attribution, when viewing the HTML code. Then i found the locked="something" and changed to false.

Edit: I wasn't the first to found out this :C At least I found it by my own :D

Who might I be

Hi, and welcome to my world, the world of Nemesis, me.

Who am I you might ask. The answer is obviously: "I'm Nemesis". But that wont suffice you, so I compiled a list of what I am:
-A hacker. In its original and modern meaning. I play with electronics, annoy my family and friends with detailed talk of them, and I actively try to keep up with computer security.
-A musician. I play piano and pipe organ as my main instruments, but i know a bit of this and that from other instruments.
-A home chemist. Not the one that makes doomsday bombs in the basement, but the one who likes to test stuff with moderately safe experiments.
-A gamer. Oh yes, I do that too.
-A 3D artist. Not the best one, but at least its fun.

It's still not who I am, but its a start. I founded this blog just out of curiosity, and I hope a lot of readers, but I believe that it's not going to happen any time soon, so if you happen to read my articles, feel free to comment! It should cheer my up :D

Sincerely yours, Nemesis