This is the PCB, that I have created for RhinoDevel's CBM Tape Pi.
It is not yet tested and this is only a preliminary release!
The PCB has an option for a barrel connector Power Supply. Also, for possible future software development, a rotary encode and an I²C OLED-Display can be connected. This is not yet supported.
Debugging result so far:
There is a screw up with signals BCM11, it shoudl be connected to the collector of Q4, but the signal name is screwed up. A botch wire is required between the collector of Q4/R8 and Pin 23/BCM11 of the Raspberry Pi.
Rev. 3 fixes the bug of rev. 2. Also the dimensions have changed: the RasPi was moved 4mm away from the edge connector.