Contents [ hide
1 Introduction
2 Description of motherboard indicators
3 Communication between motherboard and
PC
4 Interface Instruction
5 The firmware description of the motherboard
6 Notes
7 File Downloads
8 References
9 Related Manuals
Introduction
BTT SKR MINI E3 V2.0 is a customized motherboard for Ender3 printer launched by the 3D printing team of
Shenzhen BIGTREE technology co., LTD., which can perfectly replace the motherboard of the original Ender3
printer.
Motherboard features: (mainly introduces upgrades based on V1.2)
1. Use MP1584EN power chip, support 12-24V power input, the maximum output current can reach 2.5A;
2. The hotbed MOS tube uses WSK220N04, low on-resistance, larger heat dissipation area, and reduce heat
generation;
3. Onboard Sensorless homing function, which can be used by plugging in the jump cap;
4. Optimize the PCB board and frame to avoid the phenomenon of screw hole gap and screws hitting
components;
5. Support touch, filament detection, BTT UPS 24V V1.0, BTT Relay V1.2, etc .;
6. Onboard EEPROM: AT24C32;
7. Add parallel double Z-axis interface;
8. Increase the board layer: 4 layer board;
9. Increase the heat dissipation area of the back driver and strengthen the heat dissipation capacity;
10. Two CNC fan interfaces;
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