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New board assembled and tested
06/13/2020 at 22:12 • 0 comments -
New Circuit Boards
03/09/2020 at 16:17 • 0 commentsReceived the new circuit boards today.
Just need to populate them and verify the software updates.
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Qiangli Q3F32 v4.1
02/25/2020 at 23:48 • 0 commentsThe panels use the SM5266PH row select ICs. These ICs are shift register based and make the panels incompatible with standard HUB75E ABCDE addressing. The working panel pinout is as follows:
- A - shift register clock, positive edge, should be clocked every row
- B - shift register data, high -> row on, low -> row off, should set to high every eight row
- C - blanking, timing/purpose unknown, should be kept low to enable outputs
- D - async output enable, should be set to 3rd address bit
- E - async output enable, should be set to 4th address bit