zebedeu's questions
32 posts
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Re: MegaDrum 56 inputs latest schematic and PCB
by larstas » Wed Jan 25, 2012 12:17 am
Just read in the specifications (datasheet) if it is HD44780 compatible. If it is, you can use it with megadrum, if not - search for an alternative.
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Re: MegaDrum 56 inputs latest schematic and PCB
by zebedeu » Wed Jan 25, 2012 5:56 pm
someone tell me what happens if I turn on my MegaDrum
missing a 4851 (ie 6 instead of 7)?
I want to test!!
missing a 4851 (ie 6 instead of 7)?
I want to test!!
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Re: MegaDrum 56 inputs latest schematic and PCB
by ignotus » Wed Jan 25, 2012 6:28 pm
It will start an irreversible chain reaction that will blow away the Earth's magnetic field, leaving us at the mercy of solar winds that will burn us all to a cinder... 
Just joking... go ahead, it'll be fine.
Just joking... go ahead, it'll be fine.
If it ain't broken... fix it until it is.
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Re: MegaDrum 56 inputs latest schematic and PCB
by zebedeu » Thu Jan 26, 2012 7:56 pm
hello people
Please help me!
how do I find out if my LCD is HD44780 compatible?
if he is not! it is possible to use it in megadrum?
Please help me!
how do I find out if my LCD is HD44780 compatible?
if he is not! it is possible to use it in megadrum?
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Re: MegaDrum 56 inputs latest schematic and PCB
by zebedeu » Thu Jan 26, 2012 8:14 pm
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Re: zebedeu's questions
by dmitri » Thu Jan 26, 2012 8:52 pm
Read the datasheet of the LCD or ask the seller.
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Re: zebedeu's questions
by larstas » Thu Jan 26, 2012 9:18 pm
It is said, that Fordata uses SunPlus SPLC780A1-02 controllers for their displays.
And those are HD44780 compliant.
So, it means, that you can use this display for megadrum construction.
BUT pay attention to pinout for your display, and do not mess with power supply pins! Or u can damage your LCD.
And those are HD44780 compliant.
So, it means, that you can use this display for megadrum construction.
BUT pay attention to pinout for your display, and do not mess with power supply pins! Or u can damage your LCD.
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Re: zebedeu's questions
by zebedeu » Thu Jan 26, 2012 9:51 pm
That I think my LCD is compatible.
Apparently he is SPLC780D which is the new version of HD44780
Thanks
Apparently he is SPLC780D which is the new version of HD44780
Thanks
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Re: zebedeu's questions
by zebedeu » Sat Jan 28, 2012 4:03 pm
Anyone know tell me the polarity of the diode on the keyboard?
because the scheme is contradictory. has two cathodes and two anodes in the same diode. Which is correct?
because the scheme is contradictory. has two cathodes and two anodes in the same diode. Which is correct?
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Re: zebedeu's questions
by dmitri » Sat Jan 28, 2012 4:20 pm
zebedeu wrote:because the scheme is contradictory
Which scheme is contradictory?
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