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rorywinters/BruceJL-mrgtimer_firmware
Use arduino 1.8... newer versions might work too
12 parts1GPL-3.0
Boards in 1 GitHub repository, designed in KiCad, that use the SN75374D by Texas Instruments (SOIC-16 Gate Drivers ROHS). See how each wires it, with its parts, size, README and files; the SN75374D’s symbol, footprint and pinout are on its own page.

rorywinters/BruceJL-mrgtimer_firmware
Use arduino 1.8... newer versions might work too