Arduino Nano33 TestAdapter

prusaprinters

A 3D printed test adapter for connecting the SMD test-pins, especially for the SWD debug-interface, via pogo-pins.The OpenScad source file allows setting the diameters of the holes with the three parameters “shaftdiameter”, “needleclearance” and “pindiameter”.shaftdiameter is the diameter of the pogo-pin shaft. This value also depends on the accuracy of printer used. On a Prusa i3 mk3 a value of 0.9 for pogo-pins with 0.68 mm shaft worked well.needleclearance gets added to the shaft diameter for the upper part of the pogo-pin hole, to allow free movement of the needle.pindiameter provides the clearance for the pins if the Arduino used has headers soldered.The parameter “printedalignment” selects whether alignment pins, which fit into the Arduino mounting holes should be printed or not. If this option is “false” holes are added instead, allowing to insert e.g. a metal rod as a more durable alignment aid.Setting the parameter “sleeve” to “true” adds a sleeve that can be used to align the Arduino board as an alternative to using the mounting holes.There is no mechanism to clamp down the PCB, as this model is used as an inset in a larger test mount.The uploaded STL file has the following values set.shaftdiameter=1.0;needleclearance=.2;pindiameter=1.5;printedalignment=false;sleeve=false;Tested with Arduino Nano 33 BLE SenseArduino Nano 33 IOTShould also work withArduino Nano 33 BLEArduino Nano 33 BLE Sense Rev2Arduino Nano RP2040 Connect