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Hi, I'm building a MCU type controller and I'm starting to design some PCB's for the various modules. I'm planning to share them here so other users can use them if they want, if that's ok. The first and simplest one is an 8xOLED carrier board to connect to J15A of the STM32F4 core. Initial tests on a breadboard with 2 screens work fine. It is my first time using Kicad and also designing a 2-layer board, so I'd like to get some feedback before sending them to the fab house. OLED's are 0.96'' SSD1306 4-wire SPI type Mechanically the OLED's are plugged into 1x7 sockets Each 'channel' is exactly 1.1 inch wide. It leaves a little wiggle room between the screens, and should allow the case too be quite compact I remember seeing another schematic with added 100nF decoupling caps, but they're not on Thorsten wiring diagram, so I'm wondering if I should add those NOTE: I'm going to extend the board to avoid having the holes running under the OLED's.

I have 1x unused blue Alientek OLED (as chosen by TK). The protective plastic is still on the front. These 16-pin I2S/I2C/Parallel OLEDs are now very difficult to find! 9€ for the last one. (2€ shipping to DE, 4€ for the rest of the EU)

I bought 4 blue Alientek OLEDs (as chosen by TK) for 8 euro each and never used them. The protective plastic is still on the front. 4x for 20€ (2€ shipping to DE, 4€ for the rest of the EU)