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Description

This is a screen for advanced hackers who like the look of a square TFT screen with tons of pixels. The 3.4″ square display has 480×48018-bit full-colour pixels and is an IPS display, so the colour looks great up to 80 degrees off-axis in any direction.

The TFT driver is ST7701S and uses both SPI and TTL RGB ‘dot clock’ data. The SPI is only for configuring the display – you cannot draw pixels over SPI! Also, despite having a 40-pin connector, it does not have the same pinout as standard ‘rectangular’ 800×480 (4.3″, 5″ or 7″) or 480×272 (4.3″) displays. It’s a new kind of beast for sure.

To make stuff light up you’ll need a chip that can perform TTL RGB TFT driving, which means a powerful microcontroller such as the ESP32-S3 with octal PSRAM or a computer like a Raspberry Pi (with either direct-DPI connection or an intermediary chip like the ICN6211). Either way, it’s not something you can wire up to your Feather or Arduino!

It also has a lovely bezel with a capacitive touch display (FT6336U) with a connection for I2C and IRQ on the 40-pin FPC.

This is just the display module! No PCB is included.

You cannot use these with an everyday microcontroller unless it specifically has support for RGB-666 displays so please do not purchase unless you know for sure that it can plug into a driver board with the correct pinout as well.

Resources

  • Display Spec Sheet
  • Display Init Code Listing
  • ST7701 Datasheet

Additional information

Weight 0.2 kg

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