OLED SSD1309 test with RP2040 on RPi Pico

aliexpress -> https://www.aliexpress.com/item/1005002766729064.html

Pins (pin number of Pico)

```
39 - Vcc - powers OLED by 5V
27 - RST - GP21
26 - DC - GP20
25 - STX - GP19
24 - SCK - GP18
23 - GND
22 - CS - GP16
```