BIG TREE TECH MINI UPS V2.0 User manual

MINI UPS V2.0
Power failure module
User Manual
SHENZHEN BIGTREE TECHNOLOGY CO., LTD.
BIGTREE-TECH.COM
VERSION BETA 1.0
AUTHOR: MERT CAPKIN & BTT AFTER-SALES TEAM

Product Introduction
BigTree Technology Co., Ltd. developed this power failure module to detect a power failure
during printing and ensuring the print can be resumed after power is returns.
Board specifications
1) Size: 50 x 32.5mm
2) Input voltage: min. 10V DC, max.12V DC
3) Max. current: 25A
Wiring
The green connector should be connected to a 12V power supply.
The white connector should be connected to any of the endstops or other suitable port.
Note:
The module can only work normally at 12V voltage, when the working voltage is higher
than 13V, the module will be burnt out.
The module outputs a low level when it is working normally, and outputs a high level when
it detects a power failure(<10V power input).

Connect to BIGTREETECH SKR V1.3

Firmware
Download the Marlin 2.0:
https://github.com/MarlinFirmware/Marlin/tree/bugfix-2.0.x
Please modify the parameters according to the printer and then add the function of this power
failure module.
1. Enable “SDSUPPORT”in “Configuration.h”file
2. Enable “POWER_LOSS_RECOVERY”in “Configuration_adv.h”file
Enable “BACKUP_POWER_SUPPLY”means that we have a backup power supply for the stepper so
that the hotend can leave the printed model when power failed.
“POWER_LOSS_ZRAISE”is the height of Z-axis rise when power failed.
“POWER_LOSS_PIN”is the GPIO port to which the module is connected, Modify “P1_26”to the
GPIO to which the module is actually connected.