Time to get rid of as much hand-soldering as possible!
Here are the three sensors on PCB's:
- Top right is a Sensirion differential sensor: SDP31
- Top left is a Sensirion temperature and humidity sensor: SHT45
- Bottom is an Infineon absolute pressure sensor (barometric): DPS310
The default KiCad 3D view uses 1mm PCB thickness (can't see how to change that in KiCad?), I'll be using 0.5mm
Here's how they align:
The 4-wire through-hole connections link the three PCBs electrically together and also provide a junction to connect interconnecting I2C/power wires to the Xiao nRF board.