Lonely Binary
AccountCart
The 3.5 inch display board seen at an angle: a large black portrait board with the display's orange ribbon coming through a slot into a 12-way socket, a 15-way white flat-cable socket on the left, a boxed 3.3 volt warning on the left side and lonely binary 3.5 inch IPS TFT LCD printed down the long edge.
VR

View it in VR

This board opens in a VR headset: life-size, or big enough to stand beside, with every pin and every part named where it sits. Open this address in the browser on a headset such as Apple Vision Pro or Meta Quest.

learn.lonelybinary.com/vr/lcd350
You have this

3.5 Inch SPI TFT LCD Display Board, 320x480, ST7796

Six colour SPI display boards that are one circuit on six outlines: the same eight holes, the same 15-way ribbon socket, a backlight switched by a transistor, and a driver library that takes one constant per size. Which size to pick, how to wire it, and what is different about each.

Resolution
320 × 480pixels
Board
54.6 × 95.6mm
Full redraw
61ms at least
Supply
3.3V only
Start here · 18 The 3.5 inch boardOpen the board in 3D

Turn it over to see the glass, and touch each of the eight holes to see which signal it carries and what the board does with it on the way to the panel.

Product questions & answers ↓

Six sizes, one circuit

The same eight holes, the same 15-way ribbon socket and the same library constant pattern on every board. Pick by the size of picture you need.

See this board 80 × 160pixels0.96 Inch SPI TFT LCD Display Board, 80x160, ST7735Board: 29.2 × 25.0 mmSee this board 128 × 160pixels1.8 Inch SPI TFT LCD Display Board, 128x160, ST7735Board: 35.0 × 56.7 mmSee this board 240 × 320pixels2.0 Inch SPI TFT LCD Display Board, 240x320, ST7789Board: 36.0 × 64.0 mmSee this board 240 × 320pixels2.4 Inch SPI TFT LCD Display Board, 240x320, ST7789Board: 44.0 × 75.0 mmSee this board 240 × 320pixels2.8 Inch SPI TFT LCD Display Board, 240x320, ST7789Board: 48.6 × 79.8 mm
You have this320 × 480pixels3.5 Inch SPI TFT LCD Display Board, 320x480, ST7796Board: 54.6 × 95.6 mm
The whole handbook20 articles · 85 minQuick referencePDF · 466 KBCodegithub.comModel (GLB)GLB · 2.2 MBCAD (STEP)ZIP · 5.6 MBDrawing (PDF)PDF · 2.4 MBDrawing (DXF)ZIP · 166 KBPinout and specsThe pin table, and the questions people ask first
Community

Product questions

See what other owners have asked, and read their solutions.

Ask a question ↗

3.5 Inch SPI TFT LCD Display Board, 320x480, ST7796

Loading discussions…

View all on the community ↗Read here. Sign in to the community to post or reply.
Need another

Not on general sale yet. Reply to your order and we will sort out a spare — quote lcd350.

Order or missing parts?

Email us or reply to your order, and quote lcd350 — that identifies the product. If something is missing from the bag, your order is the record of what shipped.

Take it with you

Point a phone camera at the code and this page opens there. It is the same address as the one printed on your box, so it is also what to show someone you are passing the board to.