TFT35 SPI¶
Product Profile¶
BIGTREETECH TFT35 SPI V2.1 is a medium-size and clear 3D printer display developed by the 3D printing team of Shenzhen BIQU Innovation Technology Co., Ltd.
Product Link: https://biqu.equipment/products/bigtreetech-tft35-spi-v2-1-touchscreen-io2can-module
Features Highlights¶
- SPI is used for LCD display, and I2C is used for touch. The touch screen is controlled by the chip on the motherboard, which significantly reduces its cost.
- It is connected to the motherboard through the FPC cable, simple and convenient.
- Designed with XH2.54 terminal, which can communicate with the board through the terminal.
Specifications¶
| Product Dimensions | 98 x 56mm |
|---|---|
| Mounting Dimensions | 98 x 56mm. For further details please read: Dimensions |
| Input Voltage | DC 5V |
| Logic Voltage | DC 3.3V |
| Screen Size | 3.5-inch |
| Resolution | 480x320 |
| Driver IC for SPI Display | ILI9488 |
| Driver IC for Touch | NS2009 |
Dimensions¶

Interface Diagram¶

Pinout¶

Software Installation¶
Currently, it only supports CB1. V2.2.0 and earlier OS do not support TFT35 SPI. Please use V2.2.1 and later OS.
CB1 OS Image: https://github.com/bigtreetech/CB1/releases

After the OS writes to the SD card, there is a FAT32 partition named BOOT, open "BoardEnv.txt" file with Notpad, Notpad++ or VSCode.

Uncomment overlays=tft35_spi to enable TFT35 SPI screen (Delete '#' at the beginning of the line).
NOTE: If the OS image of v2.2.1 version is used. Set to overlays=tft35_spi25 instead of overlays=tft35_spi Use the SPI speed of 25Mhz instead of the default 50Mhz to avoid display confusion. If the OS image after V2.2.1 is used, The OS will use a lower and more stable speed by default.

Product Purchase Link¶
Purchase Link:
https://biqu.equipment/products/bigtreetech-tft35-spi-v2-1-touchscreen-io2can-module
If you have any issues with the product, please submit a support ticket.
https://biqu3d.com/pages/submit-a-ticket
Navigation:
BIQU Official Website: http://biqu3d.com
BIGTREETECH Official Website: http://bigtree-tech.com
Online Store: https://biqu.equipment
BIGTREETECH Official Group: https://www.facebook.com/groups/bigtreetech
Discord: https://discord.gg/hhZsV7zk
Reddit: https://www.reddit.com/r/BIGTREETECH/