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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
+```
+
+