BIGTREETECH BTT SKR 3 EZ Control Board Mainboard for 3D printer fit Dual Drivers TMC2209 EZ5160 Pro Ender 5 FDM 3D Print

BIGTREETECH SKR 3 EZ V1.0 motherboard is a 32-bit 3D printer motherboard updated by the team of Shenzhen Biqu Technology Co., Ltd. for our EZ series drivers on the basis of SKR 3. It is compatible with both the EZ series driver and the series of TMC drivers

Manual for SKR E3 EZ
https://cdn.shopifycdn.net/s/files/1/1619/4791/files/BIGTREETECH_SKR_3_EZ_User_Manual.pdf
https://github.com/bigtreetech/SKR-3

Product Features
Using 32-bit ARM Cortex-M7 series STM32H743VI main control chip with a main frequency of 480MHz.
The power chip adopts TPS5450-5A, which supports DC12/24V power input. The output current of the chip is up to 5A, and the peak value can reach 6A, which perfectly supports the power supply of Raspberry Pi.
The numerical control fan realizes 24V, 12V, 5V voltage selection through the external power supply module, eliminating the need for the operation of the customer’s external transformer module, thereby reducing the probability of damage to the motherboard.
The thermistor can select the pull-up resistance value through the jumper, and support PT1000 in this way without the need for external modules, which is convenient for customers to use DIY.
Supports functions such as resume printing, Filament Runout Detection, Completed Shutdown, BLTouch, RGB Lights, etc.
WIFI module (ESP-12S, ESP-07, ESP32) general interface.
Onboard EEPROM
Two types of CAN interfaces are reserved, USB port and XH2.54 6Pin terminal interface. The USB port is used to select CAN and USB through the double-pole double-throw switch, which is convenient for customers to use other accessories of the CAN interface.
The motor power supply supports up to 48V, and for the larger voltage when using TMC5160 and EZ5160, an isolation chip is used to protect the mainboard from burning IO.

Thermistor connection supports Pull up resistance value(2.2Kohm, SKR 3 use 1Kohm, Within our working temperature range, the voltage change scale of 2.2k with PT1000 is more obvious, and the temperature collected under the same ADC accuracy is more accurate than 1K) setting using jumpers, No more extra module needed for PT1000(Accuracy is much lower than max31865)
Logic voltage: Stepper driver signal DC 5V
High and low voltage can be selected for all stepper driver by jumper
stepper driver support EZ Driver
All other parameters are the same as SKR 3