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 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
 ```