matrix slotThe 40-597 PXI Matrix BRIC provides a range of hh density matrix modules able to switch up to 2 Amps or 100VDC70VAC. The 40RGB Matrix Slot Machine. by Ruiz Brothers and Jeff Epler. published June 17, 2020, last edited January 21, 2025. posted in LEDs LED Matrices 3D Printing CircuitPython.