8 function christmas lamp


Posted on Feb 6, 2014

This 8 function serial Christmas lamp controller is based on the IC UTC 8156 from Unisonic. Specially designed for the same purpose, the UTC 8156 can control the four lamps in 8 modes namely waves, sequential, slo-gol, chasing/flash, slow fade, twinkle/flash, steady ON and auto scan. Control signals for controlling the lamps will be available at p


8 function christmas lamp
Click here to download the full size of the above Circuit.

in 12 to pin 15 of the IC. SCRs are used to drive the lamps according to these control signals. I need help with something related to this. I bought a couple of led xmas lights using a 8 function mini controller. I opened it up and it looks similar to this. I installed it just below the roofline, so I attacked a switch lower to the ground. I noticed that if left switch off for a long period of time the light revert to the original setting of combination (all sequences will be played in intervals) when I had set it to steady on. Since it is too high to reach the controller every time is there a way to keep it steady on by uhmm I don`t know maybe cutting a connection or jumping one Any help would be great. Thanks




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