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hzeller / rpi-rgb-led-matrix

Controlling up to three chains of 64x64, 32x32, 16x32 or similar RGB LED displays using Raspberry Pi GPIO
GNU General Public License v2.0
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Which RGB 64*32 Matrix #293

Closed Einhornkot closed 7 years ago

Einhornkot commented 7 years ago

Hi,

I want to build a LED-Matrix for my living room.

I searched a little bit and found this one: https://de.aliexpress.com/item/256-128mm-64-32-pixels-1-16-Scan-Indoor-3in1-SMD-RGB-full-color-P4-led/32514844235.html?spm=2114.13010208.99999999.304.C85bTM

How can I see if this will work properly with this libary ?

Philipp

iammenotyou commented 7 years ago

I purchased https://www.aliexpress.com/item/256-128mm-64-32-pixels-1-16-Scan-Indoor-3in1-SMD-RGB-full-color-P4-led/32514844235.html And it works fine. :)

Einhornkot commented 7 years ago

Thank you, now I can buy free from worry the matrix.

And how much Ampere has your Power supply ?

Philipp :)

iammenotyou commented 7 years ago

I'm using adafruit's 5V 4A power supply. I was able to use it without a 3.3v to 5v converter (but supplies do change so you might need it), and depending on what i'm displaying it's using 2.2-3.5 w. If nothing is on the display, it is using 1w.

Einhornkot commented 7 years ago

My LED-Matrix arrived today and now I dont know if I need a level shifter at the GPIO-Pins.

Die you connect the Matrix directly to the Raspberry?

iammenotyou commented 7 years ago

Depends on your particular board. Some require it, some don't. I would suggest trying it without. If the demo doesn't run properly, then purchase the level shifter.

Assuming your only using one board, follow the chart at: (match the happy faces) https://github.com/hzeller/rpi-rgb-led-matrix/blob/master/wiring.md

Good luck!