Troubleshooting

▪In general, it is recommended to always activate all output universes. SPI communication is based on strictly serial protocols, which means that data is always sent in succession.
For example, when having output universe 1 and 4 activated and having output universe 2 and 3 deactivated, the data for output universe 4 will be sent directly after the data for output universe 1.

This section contains technical information that point out specific advice for certain LED types.

LED

Technical Advice

▪WS2815

▪LEDs of the type WS2815 normally require 12 V to work.

▪MADRIX NEBULA offers a variety of wiring possibilities as shown in the MADRIX NEBULA Technical Manual & Quick Start Guide.

▪Due to this variety of options, WS2815 might start to flicker when the data signal from the NEBULA unit to the LEDs does not provide enough voltage in certain ways of wiring.

▪The issue described above usually only becomes apparent when 12 V power is supplied to the WS2815 LEDs as well as 5 V separately to NEBULA via an external power supply, such as USB or USB power supply.
Then, the data signal from the NEBULA might fall below the required voltage to control the LEDs due to the power loss from power input to data output.

▪If power is supplied separately, to NEBULA at 5 V and to WS2815 at 12 V, then it is recommended to supply power of more than 5 V to the NEBULA (> 5 V) in order to counteract the power loss and avoid data signal issues, which can result in flickering on the LEDs.