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AusChristmasLighting 101 Manual
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101 display basics
Power requirements for WS2815 led strips
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[QUOTE="TerryK, post: 125840, member: 32169"] [USER=1097]@Plan-B[/USER] From your description, it does sound as if the data input is losing the reference to GND as string illumination levels increase. This happens due to voltage rise in the GND line. The Voltage Rise term can be a bit confusing but the voltage drop in GND causes the voltage along GND to rise as referenced to the original 0 voltage point. In your situation, probably from the controller connections. Indirectly this causes the data line to no longer be correctly referenced to GND. Pixels locking at full on or full white has been discussed in other Forum Threads and is also related to the data line input losing its 0 reference. Some pixels will accept a 3.3 volt data signal well, others not so much. All due to several factors, voltage drop being one of the primary causes. Data line impedance matching (the resistors you mentioned) plays a role too but you had mentioned 6 inch leads. I'm somewhat inclined to dismiss the resistors with connections that short. The 28 AWG though is definitely small. [/QUOTE]
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Power requirements for WS2815 led strips
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