playground project testing RP2040 (Pico) with SSD1309 2.42" OLED from AliExpress
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Ondřej Hruška 734f9ba12a add readme 3 weeks ago
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README.md

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