Review on 📺 Bicool 1.3" OLED Display Module - Black/White - 64×128 Resolution - Embedded SH1107 Driver - SPI / I2C Interface - Compatible with Arduino/Raspberry Pi/STM32 by Matt Charlton

I'm fairly new to the world of craftsmanship so my review will be from a position with little experience. There is no documentation included, which is a bit frustrating but seems normal. for the various breakouts I've played with. As you can see, in the end everything worked out for me on the Arduino nano. What I did: I searched for the driver chip (GC9A01) on github and found Arduino_GFX from moononournation. The Arduino IDE found this normal in the library manager so I didn't have to do it manually. Then: HelloWorld downloaded from the examples. Changed the line starting with "Arduino_GFX" to "new Arduino_GC9A01(". (Because I got around one - other boards might have different drivers.) Connections: VCC->3.3VGND->groundDIN->COPI ( was "MOSI" ) ( D11)CLK->SCK (D13)CS->D9DC->D8RST->D7BL->D6 These last four are based on the presets mentioned in the example title. Other boards have different presets, set Make sure you follow these. The BL wire seems unnecessary when you need the io for something else. Now for what I'd like to know, although it doesn't really affect my satisfaction: A 240x240 circular display is like a 240 square pixel -Round window 240. You can write on it, so things outside of the circle just won't show up (I wasn't sure how that would work.) The GFX library seems to be poorly documented, so code review and trial and error are required to to do what you want... Maybe I just didn't find it... There is no central pixel. If you need a circle r along the outside edge with the Arduino_GFX library using int values, the circle will be offset left or right and up or down half a pixel depending on whether you center it at 119,119 or 120,120 .