Spacing of LED's on the Unicorn HAT HD


#1

Could you please tell me the spacing centre to centre of the LED’s on the Unicorn HAT HD in both the x and y direction.

Thanks.


#2

Hi! The pitch is 3.3mm in both x and y direction, and the LEDs are right in the middle of the PCB. Have you got some kind of a grid diffuser in mind for it?


#3

No, I was thinking of a nixie tube style display along the lines of lixie
and nixie pipe. I was hoping the pitch would be 3mm so I could use 3mm
acrylic.

Regards.


#4

Not bad! Do post photos when you get it done! :)


#5

One way to do it would be to use every second row of pixels, and then still 3mm acrylic for the vertical pieces but have them slot into a horizontal layer that sits on the Unicorn HAT HD. You’d only get 8 different layers, but you could do a seven-segment display. I’ll try to mock one up!


#6

Hi. I have the same question for the 8x8 Unicorn HAT (PIM054).

I’m designing a 3D printable light pipe adapter for Bivar flexible light pipe system (http://www.bivar.com/led-indicators/light-pipes/flexible-light-pipe-systems/smflp-series).


#7

This design of mine might be of use for dimensions: https://www.thingiverse.com/thing:1668476


#8

The spacing between the pixel centres is 6.6mm according to my measurement, and the pixels are 5mm square.


#9

Perfect! Thanks. I’ll post my remix when I finish it.