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bigtreetech / BIGTREETECH-SKR-MINI-V1.1

ARM Cortex-M3 series STM32F103RCT6 chip with 32-bit CPU 72MHz. Equipped with highly modular open source firmware Marlin2.0, convenient for users DIY and secondary development, exempt from the worries of the core code;
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Board Schematic #2

Closed thisiskeithb closed 5 years ago

thisiskeithb commented 5 years ago

Do you have a board schematic for the SKR Mini 1.1?

Andypos commented 5 years ago

I need schematic for USB and USART ( what usart you use for LCD 3.5?)

IvanLev commented 5 years ago

I need schematic for USB and USART ( what usart you use for LCD 3.5?)

Usb is most probably a direct connection to the MCU so no need for the schmatic(pins Pa11 and PA12) and just probed my board with a multimeter the LCD connector is connected to USART1. TX- PA9, RX- PA10.

Andypos commented 5 years ago

I need schematic for USB and USART ( what usart you use for LCD 3.5?)

Usb is most probably a direct connection to the MCU so no need for the schmatic(pins Pa11 and PA12) and just probed my board with a multimeter the LCD connector is connected to USART1. TX- PA9, RX- PA10.

Ok. Thx. I need more info about pullup ,pulldown resistors and current in power 5V for connect small servo .

thisiskeithb commented 5 years ago

Closing since schematics were finally uploaded.