@ec6e9c30 @3083756b Nice didn't know that the raspberry pi foundation had made a SWD interface as well, but I suppose it makes great sense considdering that they also sell Arm microcontrollers.

Probably not as fast at flashing a nRF52 as the J-Link at work but then I haven't found anything that is :/ 

 @ec6e9c30 @3083756b Also if the pico probe (Molex XH?) connector is too big JST and others makes some smaller 1mm pitch connectors like https://www.lcsc.com/product-detail/Wire-To-Board-Wire-To-Wire-Connector_JST-Sales-America-SM03B-SRSS-TB-LF-SN_C160403.html

I have ordered a prototype PCB a couple of days ago where I ended up putting the 4 pin (we also include Vcc on the SWD interface for the J-Link buffers) variant on it due to size constraints.

Looking forward to seeing if it will become my new favourite connector style. 

 @ec6e9c30 @3083756b Nice I just thought they looked kind of big.... However looking at a image of the probe again I noticed just how big the red USB cable is by comparison, tiny probe not big connectors :)