Name: BIGTREETECH SKR 3
Brand: BIGTREETECH
Rating: 5 (1 reviews)

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Shenzhen Big Tree Technology CO.,LTD .

BIG TREE TECH

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4.3.8 Auto power off(Relay V1.2)

#define PSU_CONTROL // enable PSU control to turn on and off using M80 and

M81

#define PSU_ACTIVE_STATE HIGH // set turn on level， Relay V1.2 is turned on

with high level and turned off with low level ,so this setting needs to be

HIGH.

4.3.9 Power loss revovery

There are two methods for power lost recovery

1. No extra module needed, the motherboard will write current print status to

the SD card after every layer is printed, which shortens the life of the SD

card severely.

#define POWER_LOSS_RECOVERY // enable power loss recovery#define

PLR_ENABLED_DEFAULT true // true default to power loss recovery enabled

2. external UPS 24V V1.0 module，when power is cut, the module will provide

power to the board and signal the board to save current print status to SD

card. This method has virtually no effect on the life of the SD card.

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BIGTREETECH SKR 3 Specifications

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