3 Level Led Strip Problem

kity92 · Nov 25, 2021

I bought a led light about a week ago. Everything works but there is a problem. The light is sequentially illuminated. I mean (Off - Warm - Cold - Natural - Off ). But I just want to use warm light. I have to wave my hand at the sensor three times to turn off the light. My question is how can I disable that sequent? I want wave hand and turn on light (warm) and wave again for turn off light.

Thanks for all reply

[ElectriciansForums.net] 3 Level Led Strip Problem

SJD · Nov 26, 2021

Lights which offer several colour temperatures typically have 2 or more sets different of colour temperature LEDs, and switch the sets on in different combinations to get the required colour of light output. Often they will have a small internal switch to select the colour, this model is trying to be too clever by using the sensor switching.

If you knew the driver circuit, likely it would be easy to convert to just one colour, i.e. ignore the control signal from the sensor, and hard wire to warm white. You'd need to perhaps trace out the circuit, understand it, and be confident with soldering - if not, I suggest you just buy a different model e.g. one with a switch, or one that is just warm white only.

kity92 · Nov 26, 2021

I think the microchip control that driver circuit and I found diagram of microchip but I don't understand anything. I'm newbie with soldering but I can handle it just I don't know how to disable the microchip. By the way IC also able to control power supply, just I'm not sure.

Thank for advice.

Avo Mk8 · Nov 26, 2021

I don't think it's as easy as 'disabling' the sequence feature. The circuit is designed to do what it does!
If you could find the circuit schematic for the assembly, you might be able to devise a modification. I wonder what S0 and S1 are used for?

You are lucky that the colour you want is the first to come on!

What happens if you turn off the light at the plug for a moment, and then turn it back on? Does the light stay off until you use the sensor? If it does, how about fitting a momentary "off" switch in the power lead (ie normally closed, push to open).
Then pressing that (for long enough) turns it off, waving at the sensor turns it on ?

kity92 · Nov 26, 2021

Problem solved

I figured out and fix it. Strip has 3 pin (5+ -M and - ) I desoldered -M and just stay 5+ and - . Now natural and cool light are not working. I wave hand and turn on light wave one more time to turn off. I figured out scheme by multimeter. I hope this post will help someone like me.

Avo Mk8 · Nov 26, 2021

kity92 said:
Problem solved I figured out and fix it. Strip has 3 pin (5+ -M and - ) I desoldered -M and just stay 5+ and - . Now natural and cool light are not working. I wave hand and turn on light wave one more time to turn off. I figured out scheme by multimeter. I hope this post will help someone like me.

I take it back! You have indeed 'disabled' the feature. Well done ?