For a design where there is little to no space for a connector for flashing/debug, I found this, and wonder if you guys have experience with this or alternative suggestions for a small footprint connector?
I think the EC10-IDC 10-pin might fit the Particle debugger connector.
I was looking for an inexpensive and non-intrusive way adding a debugging connector and looked at that, but ended up doing something simpler and less expensive. This was for a PIC ICSP connector with added serial debugging, primarily for Adafruit FeatherWings.
I put 8 pads on the bottom of the board, between the screw holes.
Tested the EC06 (6 pin) with tag-connects own Demo PCB. Only 3 out of 6 connections where made. The keying pins did not match the footprint. The connector housing sides were warped to the sides from the manufacturer.