11/5/2022 0 Comments Make led look flickery![]() ![]() To achieve this I first create a chain of pixies needed for the specific sculpture (example 22), test and then replace any flickering pixies (when not warm) with new ones, test again until I have a chain that will not flicker when not warm. ![]() My project is to illuminate glass sculptures with the pixies at as high a brightness/duration as possible. ![]() I am going to outline my detailed process as it may be relevant. ![]() and it is definitely those specific pixies with the problem. I tried rearranging the pixies, running them as a single pixie, etc. Of the 14 flickering pixies, 6 have been processed as described below and 8 are still loose. I think the temperature sensor on these is either extremely sensitive or otherwise flawed in some manner? Of the 106 pixies, I have tested or used 98 of them (8 are untested) Of the 98, 14 flicker or strobe at very low temps/brightness either immediately on startup or within a few seconds. MAKE LED LOOK FLICKERY UPDATEHello, I have an update to the flickering issue on some of the pixies I purchased and hope you can point me in the right direction. MAKE LED LOOK FLICKERY FULLSo I do not think I could have damaged it, my soldering connections are good, no bridges or cold joints.ĭo you have any idea if the pixies temperature sensor varies in sensitivity? Should I test each one to determine (LoL I hope not)? I know that the pixies are not meant to be driven at full brightness for any length of time but I am not sure why some would be more sensitive than others. I am not sure what I could have done as the temperature indicator is part of the PIC. I somehow made the pixie more sensitive when soldering the wires Some pixies are just more sensitive than others to overheating or,Ģ. I think the flickering is related to the overheating shutoff on the pixie, however I am not sure why some pixies are so much more sensitive than others - since they are all assigned the same RGB value and are in the same environment. I ran each sketch for 10min and none of the other pixies flickered, and I also ran the above test multiple times, with the same timing give or take a second (2 is always the most sensitive, then 4, etc.) Resultstable.png (10.39 KiB) Viewed 1561 times I tested the sketch with various brightness settingsġ3 Pixie Chain 10 minute test room temp 72 degrees Results I created this test sketch so I could get a complete viewing of each RGB value per pixel and determine at what point the overheating function would trigger. After the spectrum the sketch fades from 0 to full white and back to off. I am using 16 AWG standed wire for power, 22 AWG for data and an external regulated 5v 90 AMP supply, and an arduino uno for data - everything is setup per the tutorial.įor testing I used both the Adafruit sample sketch (with the rainbow wheel function), and my own sketch - my sketch is simple, a loop setting all pixies in the chain to 0 and then incrementing form 1-255 for each color (red, yellow, green, cyan, blue, purple, red,) then fade back to off. But I had the same problem – 5 of the pixies flickered during the test. I thought I may have soldered poorly or done something else wrong, so I created a new test chain of 13 new pixies, soldering extremely carefully. Hi I purchased 106 pixie leds, and to begin testing I created a strand of 4 per the sample tutorial and of the 4, pixies number 3 and 4 flickered from the start of the Adafruit sample script. ![]()
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