How to use a 2.8 inch capacitive TFT display module in a smart meter?

You connect a 2.8 inch capacitive TFT display module to a smart meter by wiring it to a microcontroller like an ESP32 or STM32, using SPI or I2C communication, then writing firmware to handle data visualization, touch input, and power management. The 2.8 inch capacitive tft display module typically uses the ILI9341 driver chip, supports 240x320 pixel resolution, and includes a capacitive touch controller like the FT6236. In a smart meter application, this module displays real-time energy consumption, voltage, current, power factor, and cumulative usage data. The capacitive touch interface allows users to navigate menus, switch between views (e.g., daily vs. monthly usage), and reset readings without physical buttons, reducing mechanical wear.

Hardware Integration and Wiring

The display module operates at 2.8V to 3.3V logic levels, but the backlight LED