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plasma
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Joined: 08/04/2012
Location: Germany
Posts: 437

Posted: 11:39am 05 May 2014

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Hi,

i have much fun with a Led stripe and an arduino , but i think running this with the micromite
are much moore fun !

What do you think geoff ?

led strip code

and

c code for pic

atmega8

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Joined: 19/11/2013
Location: Germany
Posts: 722

Posted: 12:51pm 05 May 2014

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Toggling portpins in Sub microseconds will be to fast for mmbasic...

plasma
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Joined: 08/04/2012
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Posted: 01:07pm 06 May 2014

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i mean an internal routine which shifting the bits from the ledstring to a port with the right timing.

such like ledshiftout,ledstring,ledcount

the ledstring contains the r,g,b data for each led ( micromite can maybe support a 85 led stripe , because
the max length of a string is here 255.

plasma
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Joined: 08/04/2012
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Posted: 09:11am 12 May 2014

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finally it works . its fantastic to see a basic powered led stripe

viscomjim
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Joined: 08/01/2014
Location: United States
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Posted: 10:06am 12 May 2014

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Would love to see it, can you post a upload on youtube or something like that?

plasma
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Posted: 10:27am 12 May 2014

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led stripe Edited by plasma 2014-05-13

Frank N. Furter
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Joined: 28/05/2012
Location: Germany
Posts: 831

Posted: 07:18pm 12 May 2014

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Hi Plasma,

would you paste your code here? ...I have a two or three meter stripe here but not enough time to test it...

Thanks!

Frank

MicroBlocks

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Joined: 12/05/2012
Location: Thailand
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Posted: 08:12pm 12 May 2014

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Hi Plasma, that looks good.
Would using SPI for controlling those led strips not be a possible way to get the needed speed from Basic?

btw, i saw your video controlling a stepper motor with a micromite.
I have the same ones here, would you be able to share your code?

Microblocks. Build with logic.

plasma
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Joined: 08/04/2012
Location: Germany
Posts: 437

Posted: 09:03pm 12 May 2014

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Hi ,

At the moment it use a modified MMbasic
for the bitbanging .
To get a constant timing i forbid interrupt .
This shuts also the video down .
The delays are solved with a different loop
for 1 or 0 bit.

All in all i think a modified spi routine is
much better !

The ledcolour are stored in a string .
I modified the strings to get new colours with
a basic routine .
The Frame rate depends on the lenght of the
String or Led count.
To get much moore as 80 led i have an idea
but this needs time .
A left or rightshifting is easy todo also.

This is all !

If iam able to solve this with spi i will send the
Code to Geoff.
Maybe he put this in , also on the Micromite !

All other codes from my videos needs to be resurrectet!
I will take a look !

Gtx

plasma
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Joined: 08/04/2012
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Posts: 437

Posted: 11:24am 18 May 2014

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134 Led

same without Pause 20ms

no array yet

no spi yet

@ I think i have the micromite source for the stepper motors

gtx

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