Displays
ILI9341
Color TFT LCD controller used in many 2.4-inch and 2.8-inch SPI display modules.
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
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
Every field is meant to be source-backed. Corrections should include a datasheet URL, vendor page, module photo, or reproducible library test.
Submit correctionSource Resources
Pinout Table
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
Power the module from a rail that matches the breakout board, not just the bare IC.
Connect ground between the controller, sensor/module, and external power supply.
Share with other SPI devices when chip select lines are separate.
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
Good match for SPI/I2C displays and enough memory for UI experiments.
Simple 5V classroom baseline when the display module includes level shifting.
Useful MicroPython test target for SPI and I2C display drivers.
Alternative Model Reasons
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.
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