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1  Using Arduino / LEDs and Multiplexing / Re: Not able to control WS2811 LED strip via FastSPI_LED2 library on Nano clone on: November 25, 2013, 01:43:00 pm
Thank you very much.
2  Using Arduino / LEDs and Multiplexing / Re: Not able to control WS2811 LED strip via FastSPI_LED2 library on Nano clone on: November 20, 2013, 12:26:35 pm
Any chance you could share your FastSPI_LED2 clock sketch please?
3  Using Arduino / Audio / Re: MIDI Keyboard Encoder - Arduino Piano/Keyboard (question) on: January 06, 2013, 02:44:40 pm
http://www.ucapps.de/midio128.html

This would probably be easier for your needs.
4  Using Arduino / Motors, Mechanics, and Power / Re: Control 200 relays on: December 31, 2012, 04:54:27 pm
We can only speculate until 2wice tells us what the relays actually are.

Haven't sourced any cost effective relays yet, but I've run into some other problems that it seems, cannot be solved. I've been told to look at pulsed DC power supplies, but this might only remove one obstacle in a road leading to failure. We have other routes we can try.

Thank you for your thoughts.
5  Using Arduino / Motors, Mechanics, and Power / Re: Control 200 relays on: December 30, 2012, 02:59:41 pm
What devices are the relays powering? Power transistors or MOSFETS might be a viable alternative. smiley-cool

The relays switch power to tubes of chemicals sequential, only 3 of the tubes will be powered at a time and at most each relays will only be powered 2 or three times a minute.
5000v  10-700 micro amps.
As things stand though what we are trying to achieve will not scale up, so might try something else.
6  Using Arduino / Motors, Mechanics, and Power / Control 200 relays on: December 29, 2012, 03:30:52 pm
Good day

I have a project where I need 200 relays that control chemical solutions.

From what I can see, it seems the most I could control are 8 relays per board. 25 Arduino to control all the relays seems overkill.

Is there another way? I'm planning on using a Raspberry-PI for some other tasks, so that can help out.

Regards
7  Using Arduino / LEDs and Multiplexing / Re: Modifying LPD8806 code for WS2801 (yet another LED hula hoop thread) on: December 26, 2012, 01:08:20 am
I'm thinking of getting some strips in the WS2801 form.

Would this not help or work as intended?

http://forums.adafruit.com/viewtopic.php?f=47&t=24256
8  Community / Local Groups / Re: South Africa... Jo'burg / Pretoria? on: November 21, 2012, 09:16:26 am
Montana Pretoria representing  smiley
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