Raspberry Pi Pico Carrier Board

The Raspberry Pi Pico ( RP2040 ) is in my view, one of the most versatile little modules out there, but, it doesn't get a lot of attention from me. One reason is the lack of connectivity on the original Pico, ( since fixed with the release of the Pico-W ), but there are still two major pains that prevent me from using it a lot...The first of these is the silkscreen on the back of the Pico module, making it necessary to always have a pinout drawing handy, as well as the extremely small size of the silkscreen, making it necessary to use a magnifying glass to read the labelling... The second pain is that the RP2040 is in a QFN package, thereby also limiting my ability to use it directly on a PCB, as my eyesight is not what it used to be 20 years ago :) This PCB is thus an attempt to put the PICO on an Arduino Uno style Carrier board ( that is why the modules have the castelated holes ) and provide clear easy to read pin labelling. It also helps that it doesn't have to be on a breadboard anymore... The large square cutout is to provide access to the testpoints on the back of the Pico. and yes, you can also use a pico with soldered header pins on this board too...