Rasberry pi 5 and BTT SKR 3 Serial connection

Dentist · February 7, 2024, 12:52pm

Basic Information:

Printer Model:
MCU / Printerboard: BTT SKR 3

Describe your issue:

…
Hi,
Can I connect Rasberry pi 5 and BTT SKR 3 via serial connection?

Sineos · February 7, 2024, 4:54pm

bigtreetech/SKR-3/blob/master/Firmware/Klipper/README.md

# [切换到中文版](./README_zh_cn.md)

# How to use Klipper on SKR-3

## NOTE: 

* This motherboard comes with bootloader which allows firmware update through SD card.

## Build Firmware Image

1. Precompiled firmware(The source code version used is [Commits on Mar 18, 2022](https://github.com/Klipper3d/klipper/commit/b4b19b8fc127051e12a9891990070b98bc6eac76))
   * [firmware-USB.bin](./firmware-USB.bin) Use USB to communicate with raspberry pi. Directly connect the raspberry pi with the motherboard through the USB cable to communicate normally.
   * [firmware-USART1.bin](./firmware-USART1.bin) Use TFT port USART1 to communicate with raspberry pi. Connect the UART-TX of raspberry pi with the USART-RX1 of motherboard and connect the UART-RX of raspberry pi with the USART-TX1 of motherboard directly to communicate normally.

2. Build your own firmware<br/>
   1. Refer to [klipper's official installation](https://www.klipper3d.org/Installation.html) to download klipper source code to raspberry pi.
   2. `Building the micro-controller` with the configuration shown below. (If your klipper cannot select the following configuration, please update your klipper source code)
      * [*] Enable extra low-level configuration options
      * Micro-controller Architecture = `STMicroelectronics STM32`
      * Processor model = `STM32H743`

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Rasberry pi 5 and BTT SKR 3 Serial connection

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