New single channel I2C PCB's have been designed.   These boards use only the BMP388 sensors and each sensor is on a seperate I2C bus behind a TCA9546APWR.   An initial batch was ordered from @oshpark  and were hand assembled by @Steven.Carr.   Out of 9 boards, only 3 were successfully assembled.   Getting the solder paste right is crucial and is extremely hard to do with such small pad sizes.    Not to mention placing the parts with a home made manual pick and place rig.   Only 3 PCB's is not enough to distribute to the rest of the team, so we are currently having ScreamingCircuits.com quote us for a batch to be machine assembled.

Files are up on our github