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Details the ARM Cortex-M3 chip, dual modes, WIFI, FIL-DET, PS-ON ports, and interface options.
Lists appearance size, installation size, microprocessor, power input, and SD card logic voltage.
Explains the function of the red power indicator (D6) and green SD card detection indicator (D3).
Provides a detailed size diagram showing dimensions and port placement on the TFT35 V3.0 board.
Illustrates how to connect the display via WIFI, SD, USB, and specific interface ports.
Details how to obtain firmware from customer service or download it from the company's open source website.
Step-by-step guide on updating the firmware using an SD card, including file naming and process.
Information for users updating firmware on DIY boards, referencing a specific PIN file.
Emphasizes that the firmware file name on the SD card must not be changed.
Stresses performing wiring with power off and checking connections before powering on to prevent damage.
Highlights the importance of correct wiring sequence and non-inverted wire insertion, referencing PIN files.
The BIGTREETECH TFT35 V3.0 is a versatile and user-friendly display unit designed specifically for 3D printing machines. Developed by Shenzhen BIGTREE Technology CO., LTD., this medium-sized, ultra-clear display offers a dual-mode operation, making it an ideal replacement for the original LCD screen found on Ender3 printers. Its design focuses on enhancing the user experience through improved functionality, ease of use, and broad compatibility with various 3D printer mainboards.
At its core, the TFT35 V3.0 serves as the primary interface for controlling and monitoring a 3D printer. It integrates a powerful ARM Cortex-M3 series STM32F207VCT6 chip, boasting a 32-bit CPU running at 120MHz. This robust processing capability ensures smooth and responsive operation, whether navigating menus, initiating prints, or monitoring progress. The display supports two distinct work modes: UART serial port screen mode and 12864 screen mode, providing flexibility to users based on their preference and the capabilities of their printer's mainboard.
In UART serial port screen mode, the display offers advanced touch screen functionality, allowing for intuitive interaction with the printer's settings and operations. This mode supports two primary printing methods: directly from an SD card or via a U disk, providing convenient options for transferring print files. The touch interface simplifies complex tasks, making it easier to adjust parameters, select files, and start prints with a simple tap. For users who prefer a more traditional interface or whose mainboards are configured for it, the 12864 screen mode is available. In this mode, the display functions similarly to a standard 12864 LCD, utilizing EXP1, EXP2, and EXP3 ports for connection to the mainboard. While this mode does not offer touch functionality, it maintains compatibility with a wide range of mainboards, including those from the E3 series like SKR MINI E3 V1.2 and SKR E3 DIP V1.1.
The TFT35 V3.0 is also designed with expandability in mind. It reserves a dedicated WIFI port, enabling wireless connectivity when an external WIFI module is integrated. This feature allows for remote control and monitoring of the 3D printer, offering greater convenience and flexibility in managing print jobs from a distance. Additionally, the display includes an extension port for filament breaking detection (FIL-DET), which can pause a print automatically if the filament runs out or breaks, preventing failed prints and wasted material. Another useful extension port is reserved for automatic shutdown after printing (PS-ON), allowing the printer to power off once a job is complete, saving energy and enhancing safety. For advanced users and DIY enthusiasts, two sets of UART serial port extension ports are available, providing opportunities for custom modifications and integrations.
The BIGTREETECH TFT35 V3.0 is engineered for ease of use and broad compatibility, making it accessible to both novice and experienced 3D printer users. One of its standout features is the ability to upgrade firmware via an SD card, a process that is both straightforward and convenient. This ensures that users can easily keep their display unit updated with the latest features and bug fixes, enhancing its performance and longevity.
Switching between the two work modes—UART serial port screen mode and 12864 screen mode—is designed to be simple and intuitive. Users can toggle between modes by pressing the encoder for approximately three seconds until a mode selection page appears. Once the desired mode is selected, another press of the encoder confirms the choice. This flexibility allows users to adapt the display to their specific needs or the requirements of their mainboard. When operating in 12864 screen mode, it's important to connect the display to the mainboard using the EXP1 and EXP2 ports. For serial port screen mode, connection is made via the RS232 port to either the TFT or AUX-1 port on the mainboard.
The display's physical design is optimized for seamless integration, particularly as a replacement for the Ender3 printer's original LCD screen. Its appearance size and installation dimensions are carefully matched to ensure a perfect fit, simplifying the upgrade process for users. The inclusion of both SD card and U disk printing options in serial port mode provides robust file management capabilities, allowing users to store and access a large number of print files without constantly connecting to a computer.
Indicator lights on the board provide immediate visual feedback on the device's status. A red light (D6) serves as the power indicator, illuminating when the board receives normal power supply. A green light (D3) indicates SD card detection; it remains on when an SD card is inserted and turns off when the card is removed. These simple visual cues help users quickly ascertain the operational status of the display and its peripherals.
Maintaining the BIGTREETECH TFT35 V3.0 is designed to be straightforward, with a strong emphasis on user safety and device longevity. Firmware updates, as mentioned, are a key maintenance feature, allowing users to easily install new versions by copying the firmware file to the root directory of an SD card, inserting it into the display's slot, and then either re-powering the board or pressing the reset key. This process typically takes about 10 seconds to complete, ensuring minimal downtime. It is crucial to note that the firmware file name must not be changed during this process, as this could prevent a successful update.
Safety during installation and maintenance is paramount. The manual explicitly advises that all wiring procedures must be performed while the device is powered off. Power should only be reconnected after verifying that all circuits are correctly connected and that any drives are properly inserted. This precaution is vital to prevent damage to the board and screen, which could result from faulty wiring or incorrect connections. Users are also reminded to pay close attention to the wiring sequence and to avoid inserting wires inversely, referring to the provided PIN file for detailed line order information.
The robust construction and thoughtful design of the TFT35 V3.0 contribute to its overall durability and ease of maintenance. By following the recommended procedures for firmware updates and wiring, users can ensure the reliable and long-term operation of their display unit. Should any issues arise, the manufacturer encourages users to contact them for support, emphasizing a commitment to patient and thorough assistance. Furthermore, feedback and suggestions from users are welcomed, indicating a continuous effort to improve the product based on real-world experience. This collaborative approach to product development and support underscores the manufacturer's dedication to providing a high-quality and user-friendly experience.
General| Display Size | 3.5 inches |
|---|---|
| Resolution | 480 x 320 pixels |
| Touchscreen | Yes |
| Display Type | TFT LCD |
| SD Card Slot | Yes |
| Operating Voltage | 5V |
| Weight | 120g |
| Interface | USB |
| Compatibility | Marlin, RepRap |
| Firmware Update | SD card |
| Dimensions | 93mm x 87mm |
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