2 layers

Boards in 1 GitHub repository, designed in KiCad, that use the LM324BID by Texas Instruments (-18V~-2.5V、2.5V~18V -40℃~+85℃ 1.2MHz 10nA 20mA 240uA 35nV/√Hz@1kHz 3V~36V 4 500V/ms 500pA 600uV 7uV/℃ 80dB SOIC-14 Operational Amplifier ROHS). See how each wires it, with its parts, size, README and files; the LM324BID’s symbol, footprint and pinout are on its own page.
