3.2" TFT LCD with Touchscreen Breakout Board [ILI9341] - MicroSD
![3.2" TFT LCD with Touchscreen Breakout Board [ILI9341] - MicroSD — Adafruit — 1743](/_next/image?url=https%3A%2F%2Ftfvg9prl3arlawj9.public.blob.vercel-storage.com%2Fparts%2Fcatalogue-visuals%2Fcodex-apply-lane-recent%2Fcodex-apply-lane-recent-2026-06-02T08-04-24-051Z%2Fadafruit-1743-ili9341-tft-touchscreen-caf24fe039c5-PPm2d6fn8tEAFvZohsFH3hHdpexAIa.png%3Fv%3Dbc68f20-dirty&w=3840&q=75)
3.2" 240x320 color TFT touchscreen breakout based on the ILI9341 controller, with 4-wire SPI interface, resistive touchscreen, and microSD socket.
Pinout
- VCC
Display and touch-controller power
Type · PowerVoltage · 3.3 - GNDType · Ground
- MOSI
Shared SPI data from MCU to display and touch controller
Type · SPI - MISO
Shared SPI data from touch controller to MCU
Type · SPI - SCK
Shared SPI clock
Type · SPI - TFT_CS
ILI9341 display chip select
Type · GPIO - TFT_DC
ILI9341 data/command control
Type · GPIO - TFT_RST
ILI9341 reset control
Type · GPIO - TOUCH_CS
XPT2046 touch controller chip select
Type · GPIO - TOUCH_IRQ
XPT2046 touch interrupt, optional when polling touch state
Type · GPIO - TFT_BL
Backlight control; connect to 3.3V if dimming is not needed
Type · GPIO
| Pin | Type | Function | Voltage |
|---|---|---|---|
| VCC | Power | Display and touch-controller power | 3.3 |
| GND | Ground | ||
| MOSI | SPI | Shared SPI data from MCU to display and touch controller | |
| MISO | SPI | Shared SPI data from touch controller to MCU | |
| SCK | SPI | Shared SPI clock | |
| TFT_CS | GPIO | ILI9341 display chip select | |
| TFT_DC | GPIO | ILI9341 data/command control | |
| TFT_RST | GPIO | ILI9341 reset control | |
| TOUCH_CS | GPIO | XPT2046 touch controller chip select | |
| TOUCH_IRQ | GPIO | XPT2046 touch interrupt, optional when polling touch state | |
| TFT_BL | GPIO | Backlight control; connect to 3.3V if dimming is not needed |
Pin details
11 connections- VCC
Display and touch-controller power
PowerVoltage · 3.3 - GNDGround
- MOSI
Shared SPI data from MCU to display and touch controller
SPI - MISO
Shared SPI data from touch controller to MCU
SPI - SCK
Shared SPI clock
SPI - TFT_CS
ILI9341 display chip select
GPIO - TFT_DC
ILI9341 data/command control
GPIO - TFT_RST
ILI9341 reset control
GPIO - TOUCH_CS
XPT2046 touch controller chip select
GPIO - TOUCH_IRQ
XPT2046 touch interrupt, optional when polling touch state
GPIO - TFT_BL
Backlight control; connect to 3.3V if dimming is not needed
GPIO
Start wiring
SPI · I2C · 3.3 V · 3.3 – 5 V · Breakout
Adafruit describes product 398 as a 16x2 RGB backlight LCD using digital pins for LCD control and PWM pins for the backlight; the product…
Module pins: VCC, GND, MOSI, MISO, SCK. Schematik maps them to your board in the app.
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