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PixiFlood in Action
05/01/2015 at 16:00 • 0 commentsHere is a youtube clip of the PixiFlood in action. Thank You goes to Mark Harnishfeger: https://www.youtube.com/watch?v=Llqi3_auCkg
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Sticking with the 2N3904
04/08/2015 at 07:53 • 0 commentsPutting the inverter version on hold pending some trouble shooting. The new/original version is working without issue. It appears I need to add resistors to the Inverter version which is going to be difficult due to space issues.
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New Layout
03/30/2015 at 05:58 • 0 comments -
Bump in the road
03/30/2015 at 05:51 • 0 commentsI ran into issues with the targeted Inverter, have to switch to a 74HCT3G04DP,125 to support TTL out of the WS2811.
I am also developed another design that eliminates the inverter and uses 3 4.7K pull-up resistors along with 3 2N3904 transistors. The WS2811 is capable of directly driving the PT4115 but the signals would be reversed making sequencing much more difficult
The choice is how comfortable are you with SMD soldering of the TSS0P8 form factor at .65 pitch. Plus the transistor version is a few cents cheaper for the BOM depending on part source. The 2N3904 can run as cheap as $0.02 each vs the $0.53 single inverter. Throw in the resistors run the total to .09 vs .53.
I have PCB available for both versions.