New PCB Designs

on

 Tiny PCB's for the probe


The three Sensor PCBs:



The Xiao nRF52840 daughter PCB:



This sits on top of the Xiao. The edge-holes align with the Xiao holes so a small wire just needs to be soldered to the Xiao from each of the interconnects.

The 4-holes centre-edge of the PCB is for connecting to the sensor PCB cluster.

The two 2-hole connections are connected to the on/off switch and battery respectively.


Here is the Xiao nRF52840 BLE from Seeed:


2023 Update: Added an atmospheric pressure sensor to the sensor group. After research and testing, I have settled on the Infineon DPS310 pressure sensor. This sits inside the enclosure as a third PCB, on the SDP3x PCB. This can be seen in the first image at the top of this page. The DPS310 is the PCB on the left.
Link: DPS310