Displays

ILI9341

Color TFT LCD controller used in many 2.4-inch and 2.8-inch SPI display modules.

China-madeIlitekActiveModerate

Best For

Projects needing TFT and Color with a commonly available displays part.

Avoid If

You need production-grade certainty without checking the exact module vendor, pinout, and library maintenance status.

Quick Decision Notes

ILI9341 is indexed as a displays part from Ilitek. ChipScout tracks it by practical maker-facing dimensions: interfaces, library readiness, estimated price, field-level sources, and whether the page is strong enough for selection rather than only lookup.

Technical Specifications

DisplayColor TFTSource: Ilitek
InterfaceSPI / parallelSource: Ilitek
Resolution320x240Source: Ilitek
Working Voltage3.3V moduleSource: Ilitek

Common Use Cases

  • Maker prototypes
  • Low-cost modules
  • Educational hardware

Known Issues

  • Breakout boards may use different pin labels or regulator choices
  • Clone modules can differ from the original datasheet part

Interfaces and Library Support

Interfaces
SPI
Wireless
None
Voltage
3.3V
Libraries
Arduino verifiedMicroPython verified
Data Integrity80% confidence
Sourcehttps://www.ilitek.com/
Last verified2026-05-20
Core specsVerified
PinoutAvailable
Library supportChecked
Price rangePresent
Found a wrong spec?

Every field is meant to be source-backed. Corrections should include a datasheet URL, vendor page, module photo, or reproducible library test.

Submit correction

Source Resources

Pinout Table

VCC3.3VPower the module from a rail that matches the breakout board, not just the bare IC.
GNDCommon groundConnect ground between the controller, sensor/module, and external power supply.
SCKMCU SPI clockShare with other SPI devices when chip select lines are separate.
MOSIMCU SPI data outRequired for most displays, radios, and writable devices.
MISOMCU SPI data inMay be optional for write-only displays.
CSAny free GPIOUse one chip-select pin per SPI peripheral.

Pinout is not yet source-verified. Use the table as an integration checklist, then confirm exact pins against the module vendor page before wiring hardware.

Common Wiring

VCC

Power the module from a rail that matches the breakout board, not just the bare IC.

GND

Connect ground between the controller, sensor/module, and external power supply.

SCK

Share with other SPI devices when chip select lines are separate.

MOSI

Required for most displays, radios, and writable devices.

Arduino Example

#include <SPI.h>

const int chipSelect = 10;

void setup() {
  Serial.begin(115200);
  pinMode(chipSelect, OUTPUT);
  digitalWrite(chipSelect, HIGH);
  SPI.begin();
  Serial.println("ILI9341 SPI wiring smoke test");
}

void loop() {
  // Replace this transaction with the maintained ILI9341 driver call.
  digitalWrite(chipSelect, LOW);
  SPI.transfer(0x00);
  digitalWrite(chipSelect, HIGH);
  delay(1000);
}

MicroPython Example

from machine import Pin, SPI
import time

spi = SPI(0, baudrate=1_000_000, polarity=0, phase=0)
cs = Pin(5, Pin.OUT, value=1)

while True:
    # Replace with the maintained ILI9341 driver call.
    cs(0)
    spi.write(bytes([0x00]))
    cs(1)
    time.sleep(1)

Recommended Development Boards

ESP32-S3 display dev board

Good match for SPI/I2C displays and enough memory for UI experiments.

Arduino Uno R4 / compatible

Simple 5V classroom baseline when the display module includes level shifting.

Raspberry Pi Pico W

Useful MicroPython test target for SPI and I2C display drivers.

Alternative Model Reasons

FT6236DisplaysCompare this option when price or module availability is the deciding constraint.
GC9A01DisplaysCompare this option when price or module availability is the deciding constraint.
HT16K33DisplaysCompare this option when price or module availability is the deciding constraint.
MAX7219DisplaysThis alternative currently has stronger source coverage and confidence in ChipScout.

Common Questions

What is ILI9341 best used for?

Projects needing TFT and Color with a commonly available displays part.

Does ILI9341 support Arduino or MicroPython?

ILI9341 has verified Arduino support and verified MicroPython support.

What interfaces does ILI9341 use?

ILI9341 lists SPI; wireless support is no wireless protocol.

Compare ILI9341 vs FT6236

Alternatives and Related Parts