3.5 inch TFT displays are a popular choice for makers who want a big, colorful screen without complex wiring. This module uses the ILI9488 driver IC over a simple SPI interface, giving you a bright 320×480 resolution display with high contrast and vivid color output, using just a handful of GPIO pins. Whether you’re building a dashboard, a menu-driven interface, or a data visualization project, this 3.5 inch TFT delivers sharp graphics with minimal wiring hassle.
Technical Specifications
Here’s a full technical breakdown of this 3.5 inch TFT module, verified against the official ILI9488 datasheet:
| Parameter | Specification |
|---|---|
| Display Size | 3.5 inches |
| Driver IC | ILI9488 |
| Resolution | 320 x 480 pixels |
| Color Support | Up to 262K colors (18-bit RGB666 over SPI) |
| Interface | SPI (4-wire serial) |
| Touch Screen | Not included (non-touch version) |
| Onboard Storage | Micro SD card slot included |
| Logic Voltage | 3.3V (most modules support 5V tolerant inputs) |
| Operating Temperature | -20°C to 70°C (typical, per ILI9488 datasheet) |
| Package Contents | 1x 3.5 inch TFT Display Module |
What Makes It Stand Out
What sets this 3.5 inch TFT apart is the screen real estate for the pin count it demands. Running over SPI, it only needs a handful of digital pins to drive a full 320×480 canvas — ideal when GPIOs are stretched across sensors and modules. The ILI9488 driver handles its own internal GRAM buffering, so your microcontroller isn’t stuck refreshing frame data constantly. Review the exact command set in the official ILI9488 datasheet.
This display pairs well with the TFT_eSPI library, actively maintained for ESP32, ESP8266, STM32, and RP2040 boards, with DMA-accelerated rendering and pre-built fonts. The onboard SD card slot is a bonus — store bitmaps or log data locally without eating into your microcontroller’s flash memory.
Why Makers Choose This
Indian makers and students consistently pick this 3.5 inch TFT because it hits a sweet spot: large enough to show real information — multi-line text, graphs, icons, live sensor readings — yet compact enough for a handheld enclosure. Being SPI-based, it also plays nicely with almost every popular development board without extra level shifters.
If you’re setting this up for the first time, this step-by-step wiring and code tutorial walks through the exact pin connections and a working sketch, so you can get running in minutes.
Important Links
🔗 ILI9488 Datasheet (PDF) — official chip specifications and electrical characteristics
🔗 Module Wiki & Schematic — pinout, schematics, and software setup guides
🔗 TFT_eSPI GitHub Library — the recommended Arduino/ESP32 library for this display
🔗 Wiring & Code Tutorial — beginner-friendly setup guide with sample sketches
Best Used For
This 3.5 inch TFT fits home automation dashboards showing live status of multiple devices at a glance, or a weather station display with temperature, humidity, and forecast icons. Students often use it as the front-end for menu-driven interfaces to configure a DIY device without a laptop. Thanks to the onboard SD slot, it also suits a digital photo frame reading images off a memory card, or a real-time graph viewer for sensor data streaming from other modules.
Frequently Asked Questions
Q: Does this 3.5 inch TFT display support touch input?
No, this is the non-touch version. If you need touch, look for the touch-enabled variant in our store.
Q: Which microcontrollers is this display compatible with?
Since it communicates over standard SPI, this 3.5 inch TFT works with Arduino Uno/Mega, ESP32, ESP8266, STM32, and Raspberry Pi Pico.
Q: What library should I use to get started?
The TFT_eSPI library by Bodmer is the most widely used option, with built-in support for the ILI9488 driver.
Q: Can I use the SD card slot and display at the same time?
Yes, both share the SPI bus but use separate chip-select lines, so you can use both in the same sketch.
Q: Is this display available at the best price in India?
Yes — Techiesms offers this 3.5 inch TFT module at the best price in India, with fast shipping nationwide.
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