1.8 Inch SPI 128 * 160 TFT LCD Display Module with PCB & SD Card Slot (ST7735 Driver for Arduino & ESP32)

Add vibrant full-color graphics to your embedded projects with the 1.8 Inch SPI $128 imes 160$ TFT LCD Display Module. Powered by the industry-standard ST7735 / ST7735S controller IC, this compact display panel renders crisp text, dynamic charts, and $65 ext{K}$ RGB colors across a $128 imes 160$ pixel resolution. Communicating via a high-speed 4-wire Serial Peripheral Interface (SPI), it conserves microcontroller GPIO pins while delivering smooth screen redraws. Mounted on a sturdy breakout PCB with an onboard low-dropout voltage regulator ( $3.3 ext{V}/5 ext{V}$ power input) and an integrated MicroSD card slot, it connects seamlessly to Arduino Uno, Nano, ESP32, ESP8266, STM32, and Raspberry Pi using libraries like Adafruit_ST7735 and TFT_eSPI.

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Tags 1.8 Inch TFT Display Module ST7735 SPI LCD Display 128x160 1.8 SPI Color Display Board ST7735 TFT Screen Arduino ESP32 SPI Color LCD MicroSD Card Slot TFT Module Low Cost Color Graphic Display

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Product Details :

The 1.8 Inch SPI $128 imes 160$ TFT LCD Display Module is a versatile visual output device designed for microcontrollers requiring rich graphical feedback within a small footprint. Built using Thin-Film Transistor (TFT) liquid crystal display technology, it delivers $16 ext{-bit}$ color depth ( $65,536$ individual RGB color shades) with high contrast and bright LED backlighting.

At the heart of the module is the ST7735 driver IC, which uses a minimalist 4-wire SPI communication protocol ( $CS, A0/DC, SDA, SCK$ ). By using serial data transfer, the display needs only 4 to 5 control pins, saving remaining GPIO pins for sensors, actuators, or buttons. The module features an onboard low-dropout voltage regulator allowing operation from $+3.3 ext{V}$ or $+5.0 ext{V DC}$ supply lines, as well as an integrated MicroSD (TF) card socket on the back for storing bitmap icons, splash screens, and animation frames.

Key Features and Benefits

Vivid $128 imes 160$ Pixel Resolution: Displays clear text strings, custom gauge widgets, and full-color icons on a compact 1.8-inch panel.
$65 ext{K}$ Full RGB Color Spectrum: $16 ext{-bit}$ color rendering ( $565 ext{ RGB}$ ) ensures rich color gradients and graphic assets.
High-Speed 4-Wire SPI Bus: Reduces microcontroller pin usage while maintaining responsive frame rates.
Integrated MicroSD Card Socket: Allows reading $.BMP$ image files and logging offline telemetry directly over SPI.
Dual Power Voltage Support ( $3.3 ext{V} - 5.0 ext{V}$ ): Onboard regulator accepts $3.3 ext{V}$ or $5 ext{V}$ system power input safely.
Extensive Open-Source Software Support: Directly supported by widely used libraries including Adafruit_ST7735, Adafruit_GFX, and TFT_eSPI.

Technical Specifications

Feature Component	Specification Details
Display Panel Type	TFT LCD Transmissive Matrix
Diagonal Screen Size	1.8 inches
Pixel Resolution	$128 imes 160$ Pixels
Display Color Depth	$65 ext{K}$ Colors (16-bit RGB 565)
Driver IC	ST7735 / ST7735S
Communication Interface	4-Wire Serial Peripheral Interface (SPI)
Operating Input Voltage ( $V_{CC}$ )	$3.3 ext{V DC to } 5.0 ext{V DC}$
Logic Signal Voltage	$3.3 ext{V TTL}$ (Requires inline resistors for $5 ext{V}$ microcontroller logic)
Backlight Type	High-Brightness White LED ( $LED$ / $BL$ pin)
Operating Current	$sim 40 ext{ mA to } 50 ext{ mA}$
Operating Temperature	$-20^circ ext{C to } +70^circ ext{C}$

Pinout & Wiring Guide

1. Pin Definitions:

$GND$ : Power Ground ( $0 ext{V}$ )
$VCC$ : Power Input Positive ( $+3.3 ext{V}$ or $+5.0 ext{V DC}$ )
$SCL / SCK$ : SPI Clock Line
$SDA / MISO / MOSI$ : SPI Master Out Slave In Data Line
$RES / RST$ : Display Reset Signal (Active Low)
$DC / A0$ : Data / Command Selection Pin (High = Data, Low = Command)
$CS$ : Display Chip Select Signal (Active Low)
$BL / LED$ : Backlight Control Pin ( $3.3 ext{V}$ for 100% brightness, or PWM for dimming)
$SD_CS / SD_MOSI / SD_MISO / SD_SCK$ : Onboard MicroSD Card Slot SPI Pins

2. Microcontroller Wiring Table (3.3V Logic Boards):

Module Pin	ESP32	Raspberry Pi Pico	Arduino Uno (Requires Level Shifting)
$GND$	$GND$	$GND$	$GND$
$VCC$	$5 ext{V}$ / $3.3 ext{V}$	$3.3 ext{V (OUT)}$	$5 ext{V}$
$SCL$	$GPIO18$	$GP18$	Pin $13$ (via $1 ext{k}Omega$ resistor)
$SDA$	$GPIO23$	$GP19$	Pin $11$ (via $1 ext{k}Omega$ resistor)
$RES$	$GPIO4$	$GP20$	Pin $9$ (via $1 ext{k}Omega$ resistor)
$DC$	$GPIO2$	$GP21$	Pin $8$ (via $1 ext{k}Omega$ resistor)
$CS$	$GPIO15$	$GP17$	Pin $10$ (via $1 ext{k}Omega$ resistor)
$BL$	$3.3 ext{V}$	$3.3 ext{V}$	$3.3 ext{V}$

LOGIC LEVEL WARNING: Although the module's power pin ( $VCC$ ) accepts $5 ext{V}$ , the ST7735 controller signal pins operate on $3.3 ext{V}$ logic. Connecting signal lines directly to $5 ext{V}$ logic microcontrollers (like Arduino Uno/Mega) without $1 ext{k}Omega$ series resistors or a logic level shifter can cause screen instability or permanent damage over time.

Applications

IoT Sensor Monitors: Displaying environmental metrics ( $PM2.5$ , temperature, humidity) and Wi-Fi connection status.
Portable Handheld Devices: Compact battery testers, digital gauges, and handheld diagnostic tools.
Robotics & Smart Vehicles: Displaying operational telemetry, battery levels, and motor speed indicators.
DIY Audio & Media Players: Album art thumbnails, track titles, and spectrum visualization screens.