I recently tried out the PICO 4MB version sold here: https://www.aliexpress.com/item/1005003928558306. A cheaper alternative to the official version but with the larger flash.
Specifically called “Lite Black” by the seller, it has a similar layout to the original with the single LED at port-25.
Considering it’s an Cortex-M chipset (M0+) it will be programmed by a ST-LINK (SWD) debugger probe. The PI Pico comes with it’s own programming environment / SDK for building application in C/C++.
This 4MB variant at it’s given price is an excellent alternative to the classic bluepill which lacks flash for any complex applications. And will be a drop in replacement for any bluepill suitable projects in future.
Articles about Pico Projects soon to come…