Parallel Port Power Control Plugin (3 Viewers)

[porro]

Ok..really thank you. In these weeks I'll try to do something.

I'll keep in touch when I've finished it.

Thanks.

 

[tkortell]

Any news?

 

[Rhys.Goodwin]

No news on the dev front, if anyone wants any specific features, just let me know Have you built any hardware yet porro?

 

[porro]

Sorry. I didn't have time yet. Between exams and thesis I was very busy.

Now I've all I need, I must assemble all components. I hope to do it in this week end.
Next week I'll give you news...

Bye

 

[porro]

Hi. I've assembled all components but I've a problem: relay is always switched on even if the parallel port is not plugged...

I checked for my mistakes but it seems everything alright(no short circuit). It might be the transistor because your plugin for mediaportal seems to work well...(how can I check transistor pins, Base - Emitter etc...)
There's a test I can do with tester to check bc547??

Thank you..

Bye

 

[Rhys.Goodwin]

Hey Porro, Can you post a PIC of the schematic you're using?

 

[porro]

Hi, I was waiting to post you a picture because, for unknown reasons power supply wasn't 5V but 8.3V and now I think diode and transistor were damaged.

I don't want to waste your time so I try to fix by myself and than I'll keep in touch so I can modify your plugin to have an impulse in output instead of a continuous signal. Is it possible to edit your plugin with Visual Basic?? I know a little bit this software so, if it's possible, I'll try to edit with visual basic.

Thanks for your help.

Bye

 

[Rhys.Goodwin]

You will need visual studio, Or visual studio C# express edition (free) will work too I think. If your keen you can do this but it might be eaiser for me to do it, I'm happy to

 

[porro]

My idea was to edit your plugin to insert a timer that, when I set pin 2 (or 3,4,5,6,7) output ON, after 0,5 sec (or 1 second--it depends from response time of my relay) the output is automatically set OFF.

You think it is possible?

 

[Rhys.Goodwin]

anything is posible ;-) it's a matter of keeping track of that is on or off.