I have some time off and finally decided to try out the WS2812 led strips I had lying around.
I got the 74H245 chips and all looks to be connected correctly with just one row of 15 leds first.
The problem I have is that I get blinking white leds and nothing else. Before I switched to RGB/400kHz in the Basic library, I got red blinking only. Not sure which freq. I should be using as I have no datasheet for the exact product.
Is my assumption correct that the supply I'm using isn't sufficient? I'm using one of those no-name notebook adapters that should be pushing about 1.5A, through a ~20V->5V lin. regulator also rated up to 1.5A.
Although I don't think 15 leds should be pulling that much, there seems to be a significant voltage drop as I'm only measuring around 3V on the supply whilst blinking.
Truth be told, I didn't have any resistors around 100ohm, so those are not in place as the documentation recommends.
I got the 74H245 chips and all looks to be connected correctly with just one row of 15 leds first.
The problem I have is that I get blinking white leds and nothing else. Before I switched to RGB/400kHz in the Basic library, I got red blinking only. Not sure which freq. I should be using as I have no datasheet for the exact product.
Is my assumption correct that the supply I'm using isn't sufficient? I'm using one of those no-name notebook adapters that should be pushing about 1.5A, through a ~20V->5V lin. regulator also rated up to 1.5A.
Although I don't think 15 leds should be pulling that much, there seems to be a significant voltage drop as I'm only measuring around 3V on the supply whilst blinking.
Truth be told, I didn't have any resistors around 100ohm, so those are not in place as the documentation recommends.
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