Source

Link

Firmware Upload Guide

How to Upload Firmware

1. Download and use the upload tool provided at Upload Tool on GitHub.
2. Upload the firmware using the .ino file.

Requirements

• SSD1306
• 3 Buttons
• BW16 Board

Connections

Buttons

• Up Button: PA27
• Down Button: PA12
• Select Button: PA13

SSD1306

• SDA: PA26
• SCL: PA25