led not working

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1 month 2 days ago #12535 by fulvio00
Replied by fulvio00 on topic led not working
Thanks, i know daisy chain how works,
Pin 1 and 3 they should be always 5v and i should see data on wemos pin 4, correct?

if this is ok i have one led spare and ill change the one hour tube led (second nixie from right)

before i follow your suggestion to look very well the led and reflow

thanks

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1 month 2 days ago #12536 by Ty_Eeberfest
Replied by Ty_Eeberfest on topic led not working
Yes, power on 1 & 3. If you have a scope you should be able to see data coming into the LED on Pin 4 and coming out of Pin 2 to feed the next LED.

Look into it later when the dust is clearing off the crater.

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1 month 2 days ago #12537 by fulvio00
Replied by fulvio00 on topic led not working
Yes ill test pin 4 and 2, can i test without the nixie board?

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1 month 2 days ago #12538 by fulvio00
Replied by fulvio00 on topic led not working
Hi
I do not think is LED problem, i turn off the clock and turn on and the led was working, then i turn again off and on and the led stop to work

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1 month 2 days ago #12539 by Ty_Eeberfest
Replied by Ty_Eeberfest on topic led not working
Do the LEDs act differently with the Nixie board on versus taken off?

Do you have another power supply you could try, just to see if this could be some weird power problem?

Look into it later when the dust is clearing off the crater.

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1 month 2 days ago #12540 by fulvio00
Replied by fulvio00 on topic led not working
ok now i tested the data

power is 5v on all 4 leds

led 4. data on pin 4 and pin 2
led 3. data on pin 4 and pin 2
led 2 data on pin 4 NO DATA ON PIN 2
led 1. NO DATA

i think you are right led 2 has problem

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