Unit Glass2 is a 1.51-inch transparent OLED expansion screen unit, using the SSD1309 driver solution, supporting I2C communication interface (default address is 0x3C), and has built-in pads to change the communication address to 0x3D. This screen features high resolution, excellent brightness, and contrast, performing well under various lighting conditions. It is suitable for home products and control devices and can be used for information display, status indicators, or user interfaces, embedded into various home products or control devices for user interaction.