3.5inch TFT LCD Module -SPI, 8 Pin, ILI9488 Driver

3.5 inch SPI TFT module overview

This 3.5 inch TFT LCD is a full-color 320x480 module with a 4-wire SPI interface and an 8-pin connection format. It is intended for Arduino, ESP32, and STM32 projects that need a compact visual display for data, graphics, and embedded interfaces.

SPI keeps wiring modest compared with a high-pin-count parallel display. Touch support is not listed, so this module suits dashboards, sensor screens, status readouts, and visual-only control interfaces rather than projects that need on-screen input.

Specifications of 3.5inch TFT LCD Module -SPI, 8 Pin, ILI9488 Driver

• Type: TFT & Full-Color LCD
• Size: 3.5 inches
• Resolution: 320(W) x 480(H) RGB
• Control Chip: ILI9488, ILI9486, ILI9486L
• Interface Type: 4-wire SPI
• Number of Pins: 8
• Pin Distance: 2.54 mm
• Display Area: 48.96(W) x 73.44(H) mm
• Physical Size: 57.26(W) x 96.5(H) x 3.9(T) mm
• Working Voltage: 2.8 ~ 3.3 V
• Working Current: 90 mA
• Power Consumption: 0.32 W
• Backlight Type: 6 LEDs
• Working Temperature: -20 to 70 °C

For an Arduino-based build, an Arduino Uno R3 (Clone) is a suitable controller board. Browse the LCD Displays category if your project requires a different screen size, interface, or input method.

ILI9488 8-pin SPI TFT specifications explained

The 320(W) x 480(H) RGB panel gives this 3.5 inch 320x480 ILI9488 display more room for labels, values, icons, and simple graphical layouts than a 240x320 display. This helps with sensor dashboards and status screens where several items must remain readable at once.

Projects that can use a smaller 3.2-inch, 240x320 display with touch input can use the 3.2" SPI LCD with ILI9341. More screen formats are available in the LCD Displays category.

ILI9488 SPI TFT compatibility and setup

This module is intended for Arduino, ESP32, and STM32 microcontroller projects. It uses a 4-wire SPI interface in an 8-pin format, but verify the exact pin labels and pinout on the received board before making connections.

The controller is not guaranteed to be the same on every module: ILI9488, ILI9486, and ILI9486L are all named. Check the controller marking or documentation supplied with the received module, then select the matching display-library configuration. TFT_eSPI, LovyanGFX, and LVGL are commonly used software ecosystems for ILI9488-family displays, although exact-board testing information is not supplied.

Confirm it works

1. Confirm the module pin labels and controller marking before wiring.
2. Connect power and SPI/control signals according to a verified pinout.
3. Use 3.3V logic-level connections and add suitable level shifting where required.
4. Configure an ILI9488-family-compatible library for the controller identified on the module.
5. Run a basic graphics or color test and confirm initialization, orientation, and color output.

An Arduino Uno R3 (Clone) and Male/Female Jumper Wires 40 - 10/20/30 cm provide a controller and practical wiring for an initial setup. Arduino Mega users needing a shield-style display can use the 3.5" Arduino Mega Touch Shield; it is a different plug-in approach rather than an 8-pin SPI module.

For related background reading, see the Arduino TFT display shield interfacing guide. It covers a display shield, not this exact 8-pin module.

ILI9488 SPI TFT limitations and troubleshooting

Touch support is not listed for this module. Do not assume an 8-pin 3.5 inch display includes touch hardware because other displays in this size range do; touch requires a touch-equipped display choice.

ILI9488-family SPI configurations require 24-bit pixel transfers. A library profile intended for an ILI9341, or a configuration that assumes 16-bit SPI color handling, can produce incorrect colors, failed rendering, or no useful output.

Common first-power-on checks

• Persistent white screen: Verify the pinout, power arrangement, selected SPI pins or SPI port, controller profile, and display-library configuration before assuming a hardware fault.
• Incorrect colors: Confirm the selected controller and use a library configuration that supports the controller's 24-bit SPI pixel handling.
• Wrong orientation: Adjust rotation and color-order settings in the selected library configuration as needed.
• Shared SPI bus: The SDO/MISO connection is not specified for this module. If the received board exposes SDO/MISO, verify its behavior before sharing MISO with another SPI device.

SPI reduces the number of required microcontroller connections, but it is not the same approach as a wide parallel interface. For a visual-only project that needs an 8-bit or 16-bit parallel connection and can support a 37-pin FPC connector, the 3.5" Parallel LCD - No Touch is the better fit.

The module does not provide a confirmed maximum SPI clock rate, refresh rate, exact pinout, fitted controller for every batch, certification information, or SKU-specific reliability data. Component and mechanical variation can occur across generic module batches, so verify the received board before committing to final firmware or enclosure work.

3.5 inch ILI9488 SPI vs parallel and touch displays

The right choice depends on the required input method and connector format. This board is for compact SPI visual output; the alternatives below address touch input or a high-pin-count parallel interface.

Choose this module for simple SPI visual output. Choose either touch-equipped variant when user input is part of the interface, and choose a parallel variant when the project is designed for a high-pin-count FPC connection. Buyers evaluating an Arduino touch-shield approach can also review the Arduino touch-display shield guide; it covers a shield rather than this exact module.

The LCD Displays category includes additional display sizes, interfaces, and touch formats.

3.5 inch SPI TFT accessories and wiring essentials

A compatible microcontroller board and suitable wiring are needed to connect and test this 3.5 inch SPI TFT module; neither is listed as included. Confirm the received pin labels before ordering or preparing connections, since an exact pinout is not supplied here.

Required

• Microcontroller board: An Arduino Uno R3 (Clone) is a practical controller for Arduino-based projects.
• Connection wiring: Male/Female Jumper Wires 40 - 10/20/30 cm suit the module's 2.54 mm pin spacing for temporary connections and first tests.
• Power arrangement: Provide a suitable 2.8 ~ 3.3 V power arrangement for the display.

Recommended

• Level shifting for 5V controllers: Use a suitable 3.3V logic-level shifting solution when the microcontroller uses 5V logic.
• Power and regulator capacity: Plan the source or regulator arrangement for the listed 90 mA working current.

Optional

• Temporary prototyping: A SYB-500 Breadboard - 200x240x8.5mm helps keep first-power-on wiring organized. It is not required for permanent installation.

3.5 inch ILI9488 SPI TFT FAQ and buying checklist

Does this 3.5 inch SPI TFT module include touch input?

No. This 8-pin SPI TFT module does not list touch support. For a touchscreen, choose the 3.2" SPI LCD with ILI9341 for resistive touch or the 3.5" IPS LCD with Capacitive Touch for capacitive touch.

Can I use this display with Arduino, ESP32, or STM32?

Yes. It is intended for Arduino, ESP32, and STM32 microcontroller projects. Use the 4-wire SPI interface and configure the display library for the controller identified on the received module.

What voltage does the 8-pin ILI9488 SPI TFT module use?

Working Voltage: 2.8 ~ 3.3 V. Use 3.3V logic-level connections, with suitable level shifting for a 5V microcontroller unless the received module documentation explicitly confirms otherwise.

Which driver should I select: ILI9488, ILI9486, or ILI9486L?

Select the driver that matches the controller identified on the received module. The supported controller names are ILI9488, ILI9486, and ILI9486L; a wrong profile can cause a white screen, incorrect colors, or failed initialization.

Why does an ILI9488 SPI screen show incorrect colors or fail with a 16-bit SPI setup?

ILI9488-family SPI configurations require 24-bit pixel transfers. Use a display library and configuration that support the controller's SPI color handling.

Why is my ILI9488 SPI TFT screen white after wiring it?

Check the verified pinout, power arrangement, SPI pin selection, controller profile, and display-library configuration. On ESP32-family boards, also confirm that the selected SPI port and pins match the physical wiring.

Can I share the SPI bus with another device?

Possibly, but first verify the received board's SDO/MISO behavior. SDO/MISO availability is not specified for this module, and an exposed connection should be checked before another SPI device shares MISO.

What are the physical dimensions of this module?

The physical size is 57.26(W) x 96.5(H) x 3.9(T) mm, and the display area is 48.96(W) x 73.44(H) mm. Use these values for initial fit planning and confirm the received unit before final machining.

Should I choose this 8-pin SPI module or a parallel alternative?

Choose this board for compact SPI visual output. Choose the 3.5" Parallel LCD - No Touch when the design needs an 8-bit or 16-bit parallel interface through a 37-pin FPC connection.

Purchase decision summary

• Ideal for: Arduino, ESP32, and STM32 makers who need a 3.5-inch, 320x480 color display with a 4-wire SPI interface, 8-pin format, and no stated touch requirement.
• Maybe for: Buyers comfortable verifying the fitted controller, configuring an ILI9488-family library, planning 3.3V logic and power, and troubleshooting SPI display settings.
• Avoid if: The project needs touch input, a high-pin-count parallel interface, a confirmed single controller IC, an exact supplied pinout before purchase, or direct 5V-logic operation without suitable level shifting.

Buying checklist

• ✓ I need a 3.5-inch color display with 320x480 resolution.
• ✓ My project can use a 4-wire SPI display interface.
• ✓ I have room for a 57.26(W) x 96.5(H) x 3.9(T) mm module.
• ✓ I do not require listed touch functionality.
• ✓ I have a suitable 2.8 ~ 3.3 V power arrangement.
• ✓ My controller uses 3.3V logic, or I have a suitable level-shifting plan.
• ✓ I can provide a microcontroller board and Male/Female Jumper Wires 40 - 10/20/30 cm.
• ✓ I can verify the received controller and select the matching ILI9488, ILI9486, or ILI9486L library configuration.
• ✓ I understand that an exact pinout and MISO/SDO availability are not confirmed.
• ✓ If I need touch or a parallel interface, I have reviewed the available display variants in the LCD Displays category.