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Messages - scorpia

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1
Lynx Wireless DMX / Re: BOM
« on: July 01, 2009, 03:55:28 am »
With the wireless beta over and the wireless parts coop closed can i assume that the BOM has been finallised now?

i would be very greatfull if the BOM's for the wireless boards were released in the next few days so i could add the extra parts i require to my next mouser order.

Thanks in advance.

Peter

2
Lynx Express / current draw numbers
« on: June 02, 2009, 11:59:05 pm »
Does anyone have the current draw for the Logic side of the board. ie the parts of the board that are powered by the transformer.

I have found a transformer that possibly will give me the required voltage range that i want to be able to run the boards off 24v AC but it has limited current rating. im just wondering how close i wil get.

thanks again

Peter

3
Lynx Express / Re: design suggestion to improve user safety.
« on: June 02, 2009, 11:45:50 pm »
RJ,

first of all, thank you for making the changes you did. Not only did you look at what I suggested, you used the opportunity to make a change that seems to have improved the design no end.

extra details withheld pending a PM.


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Considering Microchip thinks it's OK to hook the PIC's straight to the Triac without an opto at all I do not consider the two pins too close together a HUGE problem either if a builder does not bridge the gap but it could be improved and should, and in the process I found a better improvement that removes this issue and saves precious build time for our users also.

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How much space is there on a triac leg between pads? 1mm same as we are talking about.

But what do they know? it's not like they are professionals or anything. 

The fact is all of us should be thankful for the input on the issue as it has led to improvements of the design. It was only the reaction afterwards that I questioned.


keep in mind when looking at this design that it is isolated from the user by use of a IR remote. so there are no low voltage sections of the board carrying data to other devices (pc's etc) .


4
Lynx Express / Re: design suggestion to improve user safety.
« on: May 23, 2009, 10:34:09 pm »
please check my edit. and no it was not meant as an attack.

note that the edit was done before you post was made

5
Lynx Express / Re: design suggestion to improve user safety.
« on: May 23, 2009, 10:28:08 pm »
sorry it was not meant to be over the top. i am not trying to offend anyone. 

I just think this is an issue that needs to be resolved and in my personal opinion moving the opto up a bit wont fix the issue.

but it is just my personal opinion. something which i thought we were allowed to share. i have edited what i thought you could have taken the to be over the top.



6
Lynx Express / Re: design suggestion to improve user safety.
« on: May 23, 2009, 09:56:11 pm »
Moving the Opto does help the 2 solder points near the top of the resistor but leaving the resistor in place where it is still leaves a gap of about 1mm between the bottom of the resistor and the main Trace for the Triac power.
Im sure it wouldn’t take much of a spike on the mains voltage to spark across a 1-2mm gap. particularly on a damp winters night when the rain or snow is falling.

The whole idea of having the resistor on that side of the opto’s might make the design "look good" but I don’t think it was a wise choice to make considering the potential dangers from such a move.

i would have thought that as a general rule everyone would put personal safety above aesthetics.

reading up across the net a generally accepted standard found on multiple websites for mains traces and the isolated signals would be about a 8mm gap. 
Im sure you would agree that mixing the mains signals and the isolated signals on any board is a bad choice if it is possible not to do so easily.

7
Lynx Express / design suggestion to improve user safety.
« on: May 23, 2009, 07:32:01 pm »
RJ,

i was looking over the express board and i came across something which i think could be improved on to help increase the safety of the design .

i was looking at the position of the current limiting resistors for the led indicators. I think it would be a safer design to move them from the high voltage side of the opto's to the low voltage side.

This would inprove the minimum seperation between the 2 sides from about 1mm to 6mm.

With the current design it wouldnt be hard to get a solder bridge between the top of the resistor and pin 6 of the MOC creating a short from the mains voltage to the logic side of the board.

being that you have another coop on the way now would probably be a good time to do the redesign.

regards

Peter

8
Finished COOPS / Re: ********Closed 3rd Lynx Express Coop********
« on: May 22, 2009, 06:02:08 pm »
RJ,

just wanted to say thanks. i got my package all the way over here in aussie land . not to bad. just a few days after the other guys.

there bigger than i thought.

thanks again

Peter

9
Light Show Pro / Re: Light Show Pro pricing
« on: May 04, 2009, 05:06:44 am »
would i be right in saying that you would need the "pro" version to get the lynx dmx siupport?


10
Lynx Wireless DMX / Re: BOM
« on: April 28, 2009, 08:03:43 am »
so any word on how the beta testing is going?

just trying to get an idea of a timeframe thats all.

11
Lynx Wireless DMX / Re: BOM
« on: April 27, 2009, 11:48:56 pm »
Any word on how the testing is going?

i would like to place a mouser order for my express stuff in the next few days (hopefully once the stock comes in) and i would like to order at least the major bits for the wireless. i dont mind missing a few minor parts as they can be picked up local.

is there any chance of a BOM (partial?) being available say by the end of the week. i would really like to avoid the extra $45ish in shipping if i can.

i guess im mainly trying to get a timeframe to see if its worth holding off on my express stuff .

Peter

12
Finished COOPS / Re: ********Closed 3rd Lynx Express Coop********
« on: April 27, 2009, 11:35:52 pm »
so do we owe any more for shipping?

looks like things are almost ready to fly.

good work JJ

Peter

13
Lynx Wireless DMX / Re: WIRELESS DMX PROJECT UPDATE
« on: April 15, 2009, 08:49:46 am »
ok

14
Lynx Wireless DMX / Re: WIRELESS DMX PROJECT UPDATE
« on: April 15, 2009, 07:16:59 am »
RJ / whoever,

first of all this is not about the express receiver. its about the standalone box.

im wondering if we need/want to have 3 different devices, doing a little bit of guessing here but isnt the RX device similar in hardware to the TX device but running different firmware? Is there a reason these couldnt be combinded into 1 device with maybe a firmware change depending on its job in life.

as i said i am guessing a little bit here as i have not seen pics of the RX but im figureing they will have the same basic hardware in them.

anyway im sure you have thought of this and have reasons for different devices .

Peter

15
Finished COOPS / Re: Lynx Wireless DMX Coop
« on: April 13, 2009, 08:30:11 pm »
ok at this stage i would be interested in

TX = 1
Ex/RX = 2
RX = 2

should cover me.


oh and thanks for opening this device up to all of DLA. should be a great asset to the community in general.

Peter

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