Hi y’all,
I’m trying to set this up properly but have no clue how to connect these components together “in the right manner” any help would be appreciate.
The documentation is a little sparse on the basics, but this will get you started.
You won’t need the multiplexer board on the left to wire up the LED matrix you have shown – it’s for fanning out the signal to 8 data lines and you’ve only got one.
There are some suggestions here for wiring up the sensor board on the right.
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Thank you Pixie really appreciate your time and effort !! Do you have any idea on how to solder the expansion & sensor board on the Pixelblaze?
There’s a picture on the Sensor Board page that might help:
As long as you make sure GND goes to GND, you should be able to choose the orientation you like (above or below; sandwich or lapped wide).
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The Pixelblaze and sensor board on that picture got 7 pins and my Pixelblaze v3 got 8 pins and the sensor board 7 pins, It won’t fit 
That’s correct! A prior version of Pixelblaze had only 7 pins.
Just line up GND and leave the 8th position disconnected.
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