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Any idea what these LED matrix signs cost as the raw unit, ready to integrate with your own thing for a DIY project? Does the cost scale somewhat linearly with
by walrus01 4y ago
Any idea what these LED matrix signs cost as the raw unit, ready to integrate with your own thing for a DIY project?
Does the cost scale somewhat linearly with number of LEDs or horizontal x vertical resolution in pixels?
- mordae 4y agohttps://jlcpcb.com/partdetail/Worldsemi-WS2812BMini/C527089 https://jlcpcb.com/partdetail/Worldsemi-WS2812BMini/C527089 $0.01 per LED About $2 per 100x100 mm board if you order about 100 of them. About $1 per above board for assembly service. Total: $6 per 15x15 LED board of 100x100 mm. Total: $12 per 30x30 LED board of 100x100 mm. I have no idea about how many would you actually need. As for the power supply, each LED draws 12 mA. So you are going to need quite a beefy supply. 15x15 grid = 2.7 A @ 5 V 30x30 grid = 10.8 A @ 5 V
- walrus01 4y agoI was thinking something more like assembled modules of 100x100 or similar LEDs in chunks all together
- bshep 4y agoThey are standard P4 panels, you can buy them for about $20-30 depending on seller/volume. They are 64x32 pixels. You can also buy P5, P10 and other sizes. They number tells you how many millimeters between each physical pixel. I use P10s for my Christmas display, they look good from about 15feet away or more.