I finished the design for a single state PCB that will manage 16 tile reading  SS49E Linear Hall Effect Sensors. Six of these boards will be daisy chained together to complete the state transition table for TMD-3.

The top of the board is on the left and the bottom on the right. All hall effect sensors will be mounted on the bottom, while each of the six boards will have a CD4067BE 16 channel analog multiplexer installed on the top. Only one of the boards will have the MCP3008 ADC chip and a header to interface with the Raspberry PI installed on the top as well. 

PCB design submitted to fab and the chips have been purchased.