The subject of how to test pixel strings without sequencer and pixel controller came up in chat last week and there was a number of people unaware of the fact that there's 2811 and 2801 pixel testers available. They were originally available in either 5V or 12V versions but they have since become universal 5V-24V version. Ray Wu, ScottLed, Ebay and other places (as well as my store) have them. They can control up to a few thousand pixels providing power is injected. Without power being injected they can directly control about 100 nodes or 1 strip. They have the JST connector on them that is typically supplied on most nodes and strip. They save the last mode that you had it running on which is useful if you're using it for decorative lighting rather than simply for testing. About the only puzzling thing about them is that the buttons are labelled on the front but are actually on the back.
View: https://www.youtube.com/watch?v=EkGeSGmagXQ
(Sorry about the poor video. It's the reason I was after a youtube guru a while back)
View: https://www.youtube.com/watch?v=EkGeSGmagXQ
(Sorry about the poor video. It's the reason I was after a youtube guru a while back)