v2: 30mm borehole distance, 2.54mm pitch header pin connector
https://oshpark.com/shared_projects/DSH0FhMU

ver B: 34,4mm borehole distance, 2.54mm pitch header pin connector
https://oshpark.com/shared_projects/QlLrcnAk
ver C: 34,4mm borehole distance, 1.25mm pitch connector
https://oshpark.com/shared_projects/z9ofDZsD
2,54mm é o padrão das "barras de pino PCI".
Curioso é que usar apenas dois resistores (além dos dois capacitores).