Courtesy of Osh Park PCB Fabrication - Theory meets Reality
Xiao with Daughter Board:
Testing of SDP31:
The Soldering Process (I use):
Original PCB: Tinned PCB: PCB after components
(tinned with soldering iron) hotplate heat-flowed:
PCB views after heat-flowed:
Solder-flow Hotplate used:
Xiao Daughter Board Sensor Boards