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I'm 90% sure I'm in. I can bring a rainbow flood and a v-flood, if anyone are interested.

Rainbow flood is in a $8 Menards fixture, and V-Flood is in a slightly larger $6 Home Depot fixture.

Edited by tfischer
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I'm currently working on an 8 channel Renard controller that entirely resides in a quad outlet box. The main objective here was to make it as cheap as possible, so only a maximum of 11 can be chained together.

Why only 11? (Or do I need to wait and see at the Mini? :D )

I've got one of the Big Clive 12 volt RGB floods ready. It would be nice to see them all side by side!

-Mark

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Why only 11?

A couple of reasons...

Because I prototyped with through hole parts, I had to leave the external oscillator off the board to even barely cram all of the parts on the board. The board was expanded out to the very edge of the outlet box and weaves in and out of the molding posts. I had intended to re-layout with surface mount parts but there's not much time left. I only actually need about 30 or so channels across my house for a particular element.

The maximum internal oscillator frequency for the PIC16F688 that a typical Renard uses is 8 MHz. The maximum baud rate at 8 MHz is 19.2K baud. At that rate, the maximum channels at a reasonable 50 mS timing rate is 94. So the maximum group of 8 channels is 88 or 11 controllers. This leaves an extra 6 channels that might or might not be reliable depending on how accurate the baud rate frequency is. At this time, I don't have a compeling reason to up the number of channels that can be chained.

I ended up using the prototype layout (after fixing the CAT5 connectors that were back-wards) and making 8 controllers. I also have the two prototype boards that fixed the connectors. So I have a total of 80 channels if needed.

Interestingly, I still use the original 64 channels Renard that I prototyped four years ago which also only uses the internal 8 MHz oscillator. So if I only need 30 channels for the new use, I could chain it with the old Renard and actually hit the 94 channel maximum. I doubt that I'll have time for experimenting though.

This might have been more than you were looking for but you did ask.:D

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A couple of reasons...

Because I prototyped with through hole parts, I had to leave the external oscillator off the board to even barely cram all of the parts on the board. The board was expanded out to the very edge of the outlet box and weaves in and out of the molding posts. I had intended to re-layout with surface mount parts but there's not much time left. I only actually need about 30 or so channels across my house for a particular element.

The maximum internal oscillator frequency for the PIC16F688 that a typical Renard uses is 8 MHz. The maximum baud rate at 8 MHz is 19.2K baud. At that rate, the maximum channels at a reasonable 50 mS timing rate is 94. So the maximum group of 8 channels is 88 or 11 controllers. This leaves an extra 6 channels that might or might not be reliable depending on how accurate the baud rate frequency is. At this time, I don't have a compeling reason to up the number of channels that can be chained.

I ended up using the prototype layout (after fixing the CAT5 connectors that were back-wards) and making 8 controllers. I also have the two prototype boards that fixed the connectors. So I have a total of 80 channels if needed.

Interestingly, I still use the original 64 channels Renard that I prototyped four years ago which also only uses the internal 8 MHz oscillator. So if I only need 30 channels for the new use, I could chain it with the old Renard and actually hit the 94 channel maximum. I doubt that I'll have time for experimenting though.

This might have been more than you were looking for but you did ask.:D

I like lights. But, man, you lost me. But I do like lights.

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A couple of reasons...

...Lots of text...

This might have been more than you were looking for but you did ask.:D

Yes, I did ask. :D

...And I do understand! (http://www.christmasinshirley.com/wiki/index.php?title=Renard#Number_of_Circuits_.28Channels.29 and the space issue for the crystal / vs. internal timing.)

With changing to Renard controllers this year, I would love to see it!

Thanks!

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  • 2 weeks later...

I also hope to be there, although I will be a late arriver...Probably 2:30 to 3:00PM I have a performance @ the Mall of America Metrodome @ 1:15pm. Any other molders out there attending?

You're welcome to show up whenever you can. :)

...When did they take "HHH" out of the Motrodome?

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