MVC_REDESIGN_drthom_notes Trigger Generation Does this block need PPS input ? LCB Connector See LCB_Connector_Search.xlsx Two possibilities: Samtec LPHS-06-32-L-VP1; mate LPHT-06-32-L-RT1 $10.99 $11.80 Harting DIN 2C048FS-2, 9C1-2; mate 2C048MS-1C1-2 $5.29 $2.07 UART Mux brainstorm 74CBTLV3257 IC MUX/DEMUX 4 X 1:2 MCP23S17 16 bit SPI 16 bit I/O expander This sketch doesn't implement an interrupt. Perhaps use a PIC or Micro which monitors each RX.