| Parameter | Value | | :--- | :--- | | | GT911 (or GT915, GT928) | | Interface | I2C (up to 400 kHz) + INT (Interrupt) | | Touch Points | 5 (GT911) / 10 (GT928) | | Resolution Support | Up to 2048x2048; configured here for 1024x600 | | Power Supply | 2.8V ~ 3.3V (analog), 1.8V ~ 3.3V (I2C) | | Sensor Channels | Typically 18 Tx (drive lines) × 10 Rx (sense lines) | | Report Rate | Up to 100 Hz | | Operating Temp | -40°C to +85°C (industrial grade) |

| Parameter | Recommended Value | Effect | | :--- | :--- | :--- | | | 40–60 | Prevents false triggers on large panel | | Noise reduction | Enable (0x01) | Improves stability on switching power supplies | | Filter coefficient | 4–6 | Smooths jitter on edge touches | | Active area margin | 5% each side | Compensates for mechanical misalignment |

Here is where things get murky. "GT9XX" is a family name, not a single chip. It usually refers to a series of display controllers manufactured by (or found in generic Chinese LCD modules). The most common variant you will encounter with the 1024x600 panel is the GT911 or GT928 .