# Can't get led's to turn on using digi quad

**URL:** <https://wled.discourse.group/t/cant-get-leds-to-turn-on-using-digi-quad/3168>\
**Category:** Issues\
**Created:** [July 6, 2021, 1:39pm UTC](https://wled.discourse.group/t/cant-get-leds-to-turn-on-using-digi-quad/3168 "2021-07-06T13:39:49Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![gziebell23](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/gziebell23/32/1737_2.png) [@gziebell23](https://wled.discourse.group/u/gziebell23)\
**Post date:** [July 6, 2021, 1:39pm UTC](https://wled.discourse.group/t/cant-get-leds-to-turn-on-using-digi-quad/3168/1 "2021-07-06T13:39:49Z")

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I have ws2812b strips on the outside of my house. I have two separate runs of strip lights(upper and lower roof line). each run has ~600 leds and they are being powered by a 5v 60amp power supply. I originally had this setup using a esp8266 running wled v10 with no issues. i have not used the lights in a few months and when i went to turn them on for the 4th, i was unable to get the esp8266 to connect to the wifi. instead of troubleshooting i figured this would be a good time to switch out the esp8266 for the digi quad that i had ordered.

I flashed the digi quad to wled v12 and got it hooked up. I am able to connect to if via my browser and the wled app. I have the data line in led 1 and led 2. in the wled config i set led 1 to pin 16 and led 2 to pin 1 and 3. After doing this i am still unable to get any led’s to turn on.

I connected a new led strip, to see if there was an issue with my led’s on the house and the new one doesn’t light up either?

I tested the power input and output on the digi board and it is a little bit above 5v. Does anyone know what the output voltage on the data line should be, if any?

Any thoughts on what might be causing the issue?

I was able to get my esp8266 connected to the wifi again so i may try to put that back in, since i know that was working at one point.

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**Author:** ![huggy-d1](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/huggy-d1/32/51_2.png) [@huggy-d1](https://wled.discourse.group/u/huggy-d1)\
**Post date:** [July 7, 2021, 5:37pm UTC](https://wled.discourse.group/t/cant-get-leds-to-turn-on-using-digi-quad/3168/2 "2021-07-07T17:37:33Z")

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You may need to modify the LED configuration. Let’s first focus on “LED 1” strip and get that working.  
Data pin (on the DigQuad terminal) should be somewhere between 0 and 5VDC depending on the effect. Solid colors should give a fairly stable value. Dynamic effects should give fluctuating voltage.

Reset the LED configuration. Is LED 1 on GPIO 16 (D0 on D1 Mini / NodeMCU)? Feel free to reference QuinLED.info for the DigQuad you have.

Once you set the pin, save and restart WLED (v12.x - I recommend getting the very latest release that came out fairly recently), does segment 0 (LED strip 1) start at pixel 0 and go to the correct number of pixels on that strip?

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**Author:** ![gziebell23](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/gziebell23/32/1737_2.png) [@gziebell23](https://wled.discourse.group/u/gziebell23)\
**Post date:** [July 10, 2021, 5:29pm UTC](https://wled.discourse.group/t/cant-get-leds-to-turn-on-using-digi-quad/3168/3 "2021-07-10T17:29:39Z")

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I did a bit more testing this morning and still can’t get the lights that are on the house to work. i disconnected the strips from the output on the digi board and connected a small strip i had laying around and got it to work, so the board appears to be working. maybe it is having an issue with the larger number of leds. i re-connected one of the strip lights on the house using the same spots i had my test strip on and nothing. the volts on the data pin might be my problem. on led 1 i only seem to get .3 volts. on led 2 i am getting about 1 volt. it doesn’t seem to change much when i change the brightness or the effect.

I tested the voltage at the start of my led strip light on the house and i was getting 5v for power and pretty much zero on the data line.

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**Author:** ![gziebell23](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/gziebell23/32/1737_2.png) [@gziebell23](https://wled.discourse.group/u/gziebell23)\
**Post date:** [July 10, 2021, 7:18pm UTC](https://wled.discourse.group/t/cant-get-leds-to-turn-on-using-digi-quad/3168/4 "2021-07-10T19:18:13Z")

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It turns out i must have had a power spike and the first led was fried on my outdoor strip. i cut out the first led and reconnected my wires and it worked. thanks for helping me investigate.

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**Author:** ![huggy-d1](https://yyz2.discourse-cdn.com/free1/user_avatar/wled.discourse.group/huggy-d1/32/51_2.png) [@huggy-d1](https://wled.discourse.group/u/huggy-d1)\
**Post date:** [July 12, 2021, 9:17pm UTC](https://wled.discourse.group/t/cant-get-leds-to-turn-on-using-digi-quad/3168/5 "2021-07-12T21:17:59Z")

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Glad you found the root cause of the problem! Nicely done.
