How to confirm Data is being sent out DataPin?

[italytower]

I am having issues where i cannot get the lights to change in test mode v3.2 or at all when I use the controller. I tested with another controller and the lights work just fine. I upgraded to the v4.5 and I see there is no more test mode from the controller to test display. I am stuck with determining how / why the lights are stuck on blue even after re-flashing.

I have a v3 pixel stick - now running 4.5

[MartinMueller2003]

Test mode in V4 is not gone. It has been move to input 2 and named "Effects"

[MartinMueller2003]

V4 always sends out data. Some pixels come up with a fixed color on boot and stay that way until they get data. It sounds like you do not have the Data plus V- wires properly connected to the pixels.

[italytower]

Thanks for the response. I've had it configured this way for couple years now with no issues. It most deff connected to the v+ d+ and v- for the output. I tried to bypass the connecter and hold the D+ on the solder joint itself no luck. Still static blue lights.

If it was a bad v- output what would you recommend to resolve it?

I was able to flash it to any version I tried then all ;) no luck.

[italytower]

[italytower]

V4 always sends out data. Some pixels come up with a fixed color on boot and stay that way until they get data. It sounds like you do not have the Data plus V- wires properly connected to the pixels.

Would you happen to be able to share more details based on what I posted in response

[MartinMueller2003]

It really sounds like you may have a bad driver / level shifter. Use a voltmeter to measure the D+ line. It should be between 2v and 4v.