HELP! Recently purchased a GS1903 chip (was sold as a 2811, but its not).

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HELP!
Recently purchased a GS1903 chip (was sold as a 2811, but its not).

Using the RGB Calibrate i cannot get it to show any patterns AND when connected to power (12v) it gives white light.

Anyone come across these and possibly have a fix?

80a030e8d69d17a09fcb6661d171e95c.jpg
80a030e8d69d17a09fcb6661d171e95c.jpg1080×1920 499 KB

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Try declaring the LEDs as UCS1903… It’s a supported chipset and might work

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This is the closest
FastLED.addLeds<UCS1903, DATA_PIN, GRB>(leds, NUM_LEDS);

But still has a number of issues,
1: Order, 1R - 2B - 3G, close
2: Inconsistant, red will switch to green sometimes.
3: Anything else i do for code i get weird fluctuating flashes, like strobing effect.

4

Are the grounds from the LEDs and controller connected?

If they are, try declaring them as TM1804, unlikely to work but you never know.

If they’re not, connect them

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For the colour order, simply swap blue and green. Define as BRG.

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@glen_Dobranski ​, how’re you getting on with them?

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Hey! Sorry for the delay, POWER SOURCE! it was a faulty Wall Wart!

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GS1903 Works much like any other 1903 i believe. BGR is the order though
Tags: GS1903, BGR RGB 2811 2812 LED Strip

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maybe you should at first to download ucs1903 led datasheet and gs1903 led datasheet to make sure your connecting of wire is correct.