BIG TREE TECH MINI12864 V2.0 User manual

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BIGTREETECH
MINI12864 V2.0
User Manual

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CONTENTS
Revision History ..............................................................................................................................3
Product Profile.................................................................................................................................4
Feature Highlights...................................................................................................................4
Specifications ...........................................................................................................................4
Dimensions ...............................................................................................................................4
Peripheral Port ................................................................................................................................5
Connector Diagram.................................................................................................................5
Pinout Diagram........................................................................................................................5
Connection Description...................................................................................................................6
Connect with the Motherboard with EXP1+EXP2 ..............................................................6
Connect with the Motherboard with FPC.............................................................................6
Motherboard Firmware Instruction..............................................................................................7
Marlin.......................................................................................................................................7
Klipper......................................................................................................................................7
Cautions............................................................................................................................................8

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Revision History
Version
Revisions
Date
01.00
Original
2022/10/11

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Product Profile
BIGTREETECH Mini12864 V2.0 is a medium-sized screen with RGB backlight launched
by the 3D printing team of Shenzhen Big Tree Technology Co., Ltd.
Feature Highlights
1. Communicate with the motherboard via EXP1 and EXP2;
2. RGB backlight, so cool;
3. Designed with the FPC connector to allow customers to choose their preferred
connection way.
Specifications
1. Dimensions: 104.99mm x 47mm
2. Mounting Size: Please refer to BIGTREETECH Mini12864 V2.0top-SIZE.pdf
3. Input: DC 5V
4. SD Card Logic Voltage: 3.3V and 5V (e.g.: motherboards that support MEGA2560
MCU, higher compatibility)
5. Interface: EXP1+EXP2 or FPC (Display)
6. Onboard Buzzer, RGB Light, RGB-LCD Screen
Dimensions

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Peripheral Port
Connector Diagram
Pinout Diagram

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Connection Description
Connect with the Motherboard with EXP1+EXP2
e.g.: MINI12864 V2.0 + SKR3
Connect with the Motherboard with FPC
e.g.: MINI12864 V2.0 + Octopus MAX EZ V1.0

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Motherboard Firmware Instruction
Marlin
1. Uncomment BTT_MINI_12864_V1 and NEOPIXEL_LED in Configuration.h.
2. If the screen does not display content, you may need to initialize EEPROM with
"M502" and then "M500" after flashing to ensure the new contrast settings are used.
Klipper
######################################################################
# BigTreeTech mini12864 (with neopixel backlight leds)
######################################################################
[display]
lcd_type: uc1701
cs_pin: EXP1_3
a0_pin: EXP1_4
rst_pin: EXP1_5
contrast: 63
encoder_pins: ^EXP2_5, ^EXP2_3
click_pin: ^!EXP1_2
## Some micro-controller boards may require an spi bus to be specified:
#spi_bus: spi
## Alternatively, some micro-controller boards may work with software spi:
#spi_software_miso_pin: EXP2_1
#spi_software_mosi_pin: EXP2_6
#spi_software_sclk_pin: EXP2_2
[output_pin beeper]
pin: EXP1_1

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[neopixel btt_mini12864]
pin: EXP1_6
chain_count: 3
color_order: RGB
initial_RED: 0.4
initial_GREEN: 0.4
initial_BLUE: 0.4
Cautions
Ensure that the power is turned off when wiring. Turn on the power only after checking
the correct connection of the cables and the driver to prevent the board and screen from
being burnt due to incorrect wiring, causing unnecessary costs.
If you need other resources for this product, please visit https://github.com/bigtreetech/ and find
them yourself. If you cannot find the resources you need, you can contact our after-sales support.
If you encounter other problems during use, feel free to contact us, and we are answering them
carefully; any good opinions or suggestions on our products are welcome, too and we will
consider them carefully. Thank you for choosing BIGTREETECH. Your support means a lot to us!