# BigTreeTech TFT35 V3.0

> 3.5-inch dual-mode 3D printer display with STM32 processor supporting both touchscreen TFT mode and classic 12864 LCD mode. Compatible with Marlin and most BIGTREETECH control boards.

## Quick Facts

- **Brand:** BigTreeTech
- **Board Type:** Display
- **Product Readiness:** consumer
- **CPU:** STM32F207VCT6 ARM Cortex-M3 @ 120MHz
- **CPU Architecture:** ARM Cortex-M3
- **CPU Cores:** 1
- **RAM:** 256KB SRAM
- **Flash:** 256KB Flash
- **Power:** 5V DC
- **Operating Voltage:** 3.3V
- **SD Card:** microSD
- **Display:** 3.5 inch TFT Color Touchscreen,12864 LCD (dual mode)

## Open Source

- **Firmware:** Yes
- **Schematics:** Yes
- **PCB Layout:** Yes

## Compatible Firmware

Marlin, Klipper

## Use Cases

- 3D Printing

## Components

- **STM32F207VCT6** (mcu): STMicroelectronics STM32F207VCT6 32-bit ARM Cortex-M3 microcontroller at 120MHz — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.st.com%2Fen%2Fmicrocontrollers-microprocessors%2Fstm32f207vc.html&ref=openhardware.directory&product=bigtreetech-tft35-v3-0&source=md-export)

## Protocols

- **UART**
- **SPI**
- **USB**

## Description

The BigTreeTech TFT35 V3.0 is a 3.5-inch medium-sized dual-mode display designed for 3D printer control boards. It features an STM32F207VCT6 ARM Cortex-M3 processor running at 120MHz, which drives the display and handles the dual operating mode switching. Users can select between a full-color touchscreen TFT mode (serial/UART) and a classic monochrome 12864 LCD emulation mode, making it backward compatible with any Marlin printer.

In TFT mode, the screen allows SD card and USB flash drive printing, real-time temperature monitoring, and intuitive touch-based navigation. In 12864 mode, the display emulates the standard Creality-style LCD, compatible with any printer running Marlin firmware. The board exposes EXP1/EXP2 connectors for standard motherboard LCD connections, an EXP3 port for SKR MINI E3 and E3 DIP boards, and two UART extension ports. A reserved WiFi port and filament runout (FIL-DET) and power-off (PS-ON) ports round out the feature set.

The TFT35 V3.0 is powered at 5V DC. Fonts, icons, and firmware can be updated via SD card. Schematics and firmware source code are published on GitHub, making it a fully open-source display solution.

## Where to Buy

- [BIQU Equipment](https://openhardware.directory/r?to=https%3A%2F%2Fbiqu.equipment%2Fproducts%2Fbigtreetech-tft35-v3-0-display-two-working-modes&ref=openhardware.directory&product=bigtreetech-tft35-v3-0&source=md-export)

## Resources

- [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2Fbigtreetech%2FBIGTREETECH-TFT35-V3.0&ref=openhardware.directory&product=bigtreetech-tft35-v3-0&source=md-export)
- [product](https://openhardware.directory/r?to=https%3A%2F%2Fbiqu.equipment%2Fproducts%2Fbigtreetech-tft35-v3-0-display-two-working-modes&ref=openhardware.directory&product=bigtreetech-tft35-v3-0&source=md-export)

## Tags

`3d-printing`, `display`, `touchscreen`, `tft35`, `dual-mode`, `12864`, `marlin`, `klipper`, `bigtreetech`, `stm32`, `3.5-inch`

## Images

![BigTreeTech TFT35 V3.0](https://nbg1.your-objectstorage.com/openhardware-directory/entities/bigtreetech-tft35-v3-0/2e6ad7629c74.jpg)

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