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.

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 ;-)

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.