is it any way the data line or something is destroyed..so even the first led working fine, it cannot send the data?
and how i check? i tried giving data signal in the middle
so i want the least invasive method
Did you disconnect the input to the LED from the previous one? If so that will not work with a good strip.
Alternatively cut the first led out and try again. Go through the whole strip like this and it will fit into the trash can better.
Did you disconnect the input to the LED from the previous one?
is there any way the data signal go backwards?
my whole theory is that i find very strange to have the first led working fine..but all the other ledstrip (about 80 leds) is burned..
No, but the output from an LED can drag down any input you inject mid stream.
That could be because the first LED is connected to the Arduino and the ESD diodes could have saved it from the reverse polarity that killed the rest of the strip.
One of us used polarized plugs, so there was no way that they could possibly be connected wrong. The other one of us did not. He was stone cold sober when he put up his lights. I, ah, I may not have been.
ws2812b strips have polarity protection, so something else is wrong. suggestions include your microcontroller is damaged or you have a coding issue.
From the data sheet:" Intelligent reverse connect protection, the power supply reverse connection does not damage the IC."
22 of the LEDs were presumably asleep, and didn't realise what they were supposed to do intelligently.
im missing something? i use external power.. the esd diode is where?
there is there no data from the "previous" leds.
i cannot understand why it couldnt work when i moved only the signal line