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Topic: Schematic/Board design check (MAX7221 based board) (Read 2 times) previous topic - next topic

xl97

Aug 27, 2013, 11:13 pm Last Edit: Aug 28, 2013, 04:32 am by xl97 Reason: 1
Hey gang-

I have a pretty straight forward pcb schematic ad board design I did...

Like to get some feedback/second pair of eyes before I send out for PCB's

4.35 in length .75 in height

MAX7221 & voltage regulator

Purpose:
to use in a prop that will be connected to an Arduino located elsewhere.

only 30 x 1206 leds  (couldnt imagine trying to fit 60 in here!)

so less than half of the chips' multiplexing 'functionality' is being used.. :)

if anyone sees any errors.. please let me know..

(I know the board design isnt 'pretty'..but it passed all design rules checks.) :)


thanks




mirith

How does it mount to the Prop? Screws?  Tape? Bubblegum?  Does it run along only 1 blade or is it across 2 of them?
Do you have a header for connecting and disconnecting the device?

And just out of curiousity, not as a critique, does everything mount to the prop, or do you have some form of rotating connector?

xl97

Quote

How does it mount to the Prop? Screws?  Tape? Bubblegum?  Does it run along only 1 blade or is it across 2 of them?
Do you have a header for connecting and disconnecting the device?

And just out of curiousity, not as a critique, does everything mount to the prop, or do you have some form of rotating connector?


* it mounts to the 'prop', as in it, presses up to a 'window' and is secured from behind (I believe there are some screws and some pieces/plate' to hold it up)

* not sure what you mean by 'does it run along one blade or two'?  its a single 'string' (matrix wired) to be used as a 'counter' (although Im sure other animations could be done.. ie: larson effect...or whatever you wanted)

*there is no header... there are 'pads' to direct solder wires to


* yes I believe everything will mount IN the prop.  this 'bargraph/counter' will be mounter in one section/area.....   there will also be another 'brain/arduino' in the main unit/area of the prop there will be some sort of wire connector used but it really irrelevant  at this point.. as it will be determined by what fits the actual prop/mating areas best.

thanks! 



anbody got some feedback on the schematic?  any errors?  :) the pcb passes the design rules check so I'll leave it up for a few more days before giving it a 'try' and ordering.

thanks!

Henry_Best

Are you talking about a propeller or a stage prop?  :~


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