As I played, tested and learned I wrote down all bits and bytes found in Internet. I reorganised that information is a more coherent and meaningfull way. Below you find the result of it, so far.
Note: If you see incorrectly information to your finds, please let me know
| # | Title | Updated |
| 00 | RP2040 Datasheet | 2021 |
| 01 | Hardware | 2021 |
| 02 | Pico Hardware | 2021-02-13 |
| 03 | Schematic (Rev3) | 2021 |
| 04 | Pinout | 2021 |
| 05 | C/C++ SDK | 2021 |
| 06 | C/C++ | 2021 |
| 07 | C/C++ under Windows | 2021-02-17 |
| 08 | Programmable I/O | 2021-01-30 |
| 09 | Interfacing | 2021-02-28 |
| 10 | MicroPython SDK | 2021 |
| 11 | MicroPython | 2021-01-25 |
| 12 | MicroPython using Thonny | 2021-01-25 |