Hello,
You can try to check similar topics
- Displaying Text on a SSD1306 Oled display - Mbed OS / Hello world! - Arm Mbed OS support forum
- Mbed LPC1768 with OLED - Mbed OS - Arm Mbed OS support forum
- Trying to make sense of SSD1306 display behaviour - Mbed OS - Arm Mbed OS support forum
BR, Jan