The 1.8-inch TFT LCD, commonly driven by the ST7735 or ST7735S controller chip, primarily uses a 4-wire SPI interface. This is a serial interface that requires only a few I/O pins, making it highly compatible with small microcontrollers like Arduino and STM32. The display supports full 18-bit color, which provides 262,144 shades of RGB colors, allowing for vibrant and real-life visuals.
Specifications
According to manufacturers and technical documentation, the typical specifications for this display module are as follows:
Display Size: 1.8 inches (diagonal)
Resolution: 128x160 pixels
Driver IC: ST7735 / ST7735S
Color Depth: 18-bit (262,144 colors)
Interface Type: 4-wire SPI Serial Interface
Operating Voltage: 3.3V (most modules include a regulator to support 5V input)
Backlight: Integrated LED backlight
Onboard Features: Often includes a microSD card slot for displaying images
Usage
This module is popular in hobbyist and DIY electronics projects because it is easy to integrate using standard libraries for platforms like Arduino and Raspberry Pi. The SPI interface allows for relatively fast data transfer, making it suitable for displaying text, sensor data, graphics, and simple animations