Hi again,

GPOs are working correctly. What I find a little weird is that in the scheme that Cheese posted, it is done like that. Maybe he forgot to connect +ve to -ve? If you connect it, then there should be current flowing to the base, therefore the transistor should be on. I've been thinking on ...

Hi Miles

It's a LK204-25-V (special model for Bit-Tech.net).

Thanks a lot / Fernando

Hi all,

I've followed Cheese tutorial in order to create a CLCD digital baybus but it is not working. I've emailed Cheese but there was no answer (Cheese, are u on vacation?)

My problem is the following. According to the tutorial:

when the GPO is 'on' its -VE pin is earthed and no current can ...

Hi Linear,

Thanks for your help. I was expecting to do it with the GPO without adding any other components. The problem with the PWM IC you mentioned is,afaik, that it needs an "analog" signal to work. I won't have any control with the GPOs then. I could use the parallel output with some resistors ...

Hi Mat,

Thanks for your reply. Maybe you could not dim it because the on cycle was much longer than the short one and the frequency was not high enough. That's why I was asking for at least 128 on/off operations per second.

Maybe using direct writes to the screen to turn the leds on and off could ...

Hi,

I'm planning to create three "square wave" signals with different frecuencies with the GPOs. Is it possible to turn on and off three GPOs say 128 times per second without damaging the unit? The other three GPOs will be "on". I don't know if the GPOs are designed to be able to be turned on and ...

OOPS,

Believe it or not, I did look at the manual but did not see the - + over the GPOs drawing. Oh well, ....

Thanks a lot / Fernando

Ok, now that we have the LCD identified, what is the polarity of the GPOs? I need to know it before I start wiring all the stuff that I want to place inside the box.

Thanks a lot / Fernando

Hi, I'm working on an external case for my MO LCD. I've uploaded some pics to the gallery. Henry, in the last pic, what is the positive and what the negative terminal of each CPO of this particular LCD?

- +
- +
- +

or

+ -
+ -
+ -

?????

Best regards / Fernando D.

Unit: NK-204-25-BIT-TECH
Software: None yet (LCDC when it is ready)
Difficulty: Medium
Other: Plastic case is giving me a lot of headaches. I will use some Sunbeam laser leds controlled by the GPOS (green, red, blue, and UV) as well as two high intensity leds (red and white) already mounted in ...

Hi, can anybody help?

How do I configure Headlines setting in lcdcenter 2.0? Can anybody give me an example?


Best regards / Fernando