LawrenceDriveLights
Senior elf
- Joined
- Jan 16, 2018
- Messages
- 582
Hi guys,
wasn't sure where to post this if in the wrong section please move etc.
I am currently playing around with my christmas lights (as you do in June!) and I am having a weird issue with one pixel staying on red all the time.
Quick background is using a Falcon F48 pixel controller powered by a generic Chinese 5 volt power supply (30 amps or something like that, as it was the only 5 volt power supply I had sitting around to use).
Using a differential receiver board with 12 volt Ws2811 pixels.
Issue is one of the pixels at the start if the string (on a pixel tree with 3 x strings of 168 pixels per string and power injecting via the last pixel connection) is staying on red all the time and when running a test sequence it does crazy stuff on this string.
I tried attaching a known good pixel to the output from the differential receiver and it still stayed on red (eliminating a possible pixel issue), i even swapped the strings around and the problem followed the same output from the diff receiver board.
I tried swapping around pigtails and leads, nope pixel still staying on red.
I tried removing the power injection, nope pixel still staying on red.
I tried separating the cat cables from the F48 to the differential receiver board, nope still staying red.
I tried powering the 12 volt power supply for the problem area from a different 240 v circuit, nope still staying red.
I tried swapping over differential receiver boards, nope still staying on red.
I was starting to go a bit crazy at this point on time, so for some reason I tried swapping over the 5 volt power supply for the Falcon F48. What the????? no more pixel staying on.
Here is a quick (5 min) video to try and show you guys.
I am a bit lost, any ideas why except possible weird frequency caused by the chinese 5 volt power supply?
Please note the alternative 5 volt power supply is just a temp (Its a 4 amps USB charger), yep a bit dodgy but it was the only other 5 volt power supply I had sitting around.
Do you guys have any other ideas???? It all seems a bit weird to me.
View: https://www.youtube.com/watch?v=rdSQav-Y544&t=49s
wasn't sure where to post this if in the wrong section please move etc.
I am currently playing around with my christmas lights (as you do in June!) and I am having a weird issue with one pixel staying on red all the time.
Quick background is using a Falcon F48 pixel controller powered by a generic Chinese 5 volt power supply (30 amps or something like that, as it was the only 5 volt power supply I had sitting around to use).
Using a differential receiver board with 12 volt Ws2811 pixels.
Issue is one of the pixels at the start if the string (on a pixel tree with 3 x strings of 168 pixels per string and power injecting via the last pixel connection) is staying on red all the time and when running a test sequence it does crazy stuff on this string.
I tried attaching a known good pixel to the output from the differential receiver and it still stayed on red (eliminating a possible pixel issue), i even swapped the strings around and the problem followed the same output from the diff receiver board.
I tried swapping around pigtails and leads, nope pixel still staying on red.
I tried removing the power injection, nope pixel still staying on red.
I tried separating the cat cables from the F48 to the differential receiver board, nope still staying red.
I tried powering the 12 volt power supply for the problem area from a different 240 v circuit, nope still staying red.
I tried swapping over differential receiver boards, nope still staying on red.
I was starting to go a bit crazy at this point on time, so for some reason I tried swapping over the 5 volt power supply for the Falcon F48. What the????? no more pixel staying on.
Here is a quick (5 min) video to try and show you guys.
I am a bit lost, any ideas why except possible weird frequency caused by the chinese 5 volt power supply?
Please note the alternative 5 volt power supply is just a temp (Its a 4 amps USB charger), yep a bit dodgy but it was the only other 5 volt power supply I had sitting around.
Do you guys have any other ideas???? It all seems a bit weird to me.
View: https://www.youtube.com/watch?v=rdSQav-Y544&t=49s