GPIO input/output adapters for FifoPi, I2S/DSD, fully finished

I2S/DSD input adapter for FifoPi. Makes FifoPi working independently for any project as a universal FIFO re-clocker.

I2S/DSD input signals can be fed either from the SIP connector J6 or the U.FL coaxial cable connectors J1,J2 and J3.

Compatible with FifoPi form the first generation to current version. 

Plug and play. 13mm standoffs can be used between this input adapter and FifoPi Q7.

#21C GPIO output adapter can be used to take I2S/DSD signals from GPIO into U.FL cables for higher signal quality, as well as take I2C signals from connector J5.  In StationPi CM5 DAC applications, #21C will be needed when works with a FifoPi other than the FifoPi III or higher version. The I2C cable is included.

Note: Please be careful not to shift the pin positions when install, otherwise a short circuit can be result in.