Fangrui Product Details Touch And Its Controller: This Touch Screen Is Composed Of Tempered Glass + Thin Film Film Material, Which Has High Strength, Strong Hardness And Good Light Transmittance. The Matching Driver Chip Is Cst816d Self-capacitive Touch Chip, Which Supports Standard I2c Communication Protocol Standard, Which Can Achieve Configurable Communication Rates Of 10khz~400khz. I2c Communication Protocol: The 7-bit Device Address Of The Chip Is 0x15, That Is, The Device Write Address Is 0x2a And The Read Address Is 0x2b. 240x280 Resolution, 262k Colors, Clear And Colorful Displaying Effect. High Touch Screen Transmittance, Fast Response And Long . Embedded St7789v2 Driver Chip And Cst816t Capacitive Touch Control Chip, Using Spi And I2c Communication Respectively, Minimizes Required Io Pins, Supports Controller Boards Like For / Esp32s3 / For / For / Stm32. Note: Please That The Power Supply Voltage And Logic Voltage Are Consistent, Otherwise It Not Work Properly. Specifications: Operating Voltage: 3.3v / 5v Resolution