BIG TREE TECH TFT3.5 V2.0 User manual

深圳市必趣科技有限公司
BIG TREE TECH
BIGTREETECH
TFT3.5 V2.0
User manual

深圳市必趣科技有限公司
BIG TREE TECH
I. Product Introduction
BIGTREETECH TFT35-V2.0 is a medium size and ultra-clear 3D
printing machine display launched by the 3D printing team of Shenzhen
BIGTREE technology co., LTD.
1. Product characters
1、ARM Cortex-M3 series STM32F103VCT6 chip with 32-bit CPU 72MHz;
2、Equipped with modular open source firmware, it is convenient for users to DIY and
secondary development
3、Integrate Keil MDK5 development environment with mainstream development
tools; Support online debugging, more helpful for product development and
performance optimization, C language development, low development threshold;
4、PCB wiring is precise and beautiful
5、Using special power chip, 5V dc power input
6、Equipped with 3.5 inch color touch screen, with rich colors, support 65536 colors
7、The system supports simplified Chinese, English and other languages, can be switched;
8、Update and configure firmware with SD card, easy to operate;
9、Support serial wifi
10、Support the functions of power off, continuous play, material failure detection,
shutdown, etc.;
11、Visual human-computer interaction interface.
12. When the display is powered up, the indicator D3 will light up, indicating that the
power supply is normal.
2. Product Parameters
1) Appearance size：110*60mm
2) Installation size：105*55mm
• Microprocessor：ARM Cortex-M3 CPU
• Power Input：DC5V
• External flash storage
• External EEPROM
• Passive buzzer alarm
• Touch the chip
• 3.5” TFT touchscreen
• External SD card slot
• Onboard serial WIFI port
• SWD debug port
• 7 extended I/O ports
• USART1 & USART3 port
• Encoder input port
•Reset button

深圳市必趣科技有限公司
BIG TREE TECH
II. Ports on the board
Size diagram

深圳市必趣科技有限公司
BIG TREE TECH
Connection diagram
III. Firmware Introduction
Factory board will be equipped with test firmware, it can be used directly.
User can also change the firmware according to their own need.
1. Ways to obtain the firmware of motherboard
1)Get it from customer service or technical staff
2)Log in the open source website of our company to download:
https://github.com/bigtreetech
IV. Notes
1.The name of the firmware file in the SD card cannot be changed. (including capital and small
letters)
2.Wiring process must be under the precondition of power outages. Users must check the
correct connection of the circuit and the correct insertion of the drive module before turning on
electricity. Pay attention to the wiring sequence and do not insert the wire inversely. Please
refer to PIN file for detailed line order.
If you meet other problems in the use, you are welcome to contact us, we will answer for you
carefully. If you have any good comments or suggestions on our products, you are welcome to
give us feedback, and we will carefully consider your comments or suggestions. Thank you for
supporting BIGTREETECH products.
SWD
debug
USART1
Encoder input
USART3
Expansion
port
DC5V input
WIFI
Expansion ports
Filament runout
sensor
Expansion
port
Automatic shutdown
sensor