Marlin 2.1.x Configuration for DIY 300x300x400 3D Printer

This repository contains the configuration files for Marlin 2.1.x firmware tailored for a DIY 300x300x400 3D printer. It includes settings for a BTT TFT35 V3.0.1 display, a BLTouch auto bed leveling sensor, and a BTT SKR MINI E3 V3 mainboard.

<h2>Features</h2>
<ul>
    <li><strong>Firmware:</strong> <a href="https://marlinfw.org/">Marlin 2.1.x</a></li>
    <li><strong>Mainboard:</strong> BTT SKR MINI E3 V3</li>
    <li><strong>Display:</strong> <a href="https://bigtree-tech.com/pages/download">BTT TFT35 V3.0.1</a> configured as TFTGLCD_PANEL_I2C</li>
    <li><strong>Auto Bed Leveling:</strong> BLTouch (connected to Neopixel pins)</li>
    <li><strong>Printer Size:</strong> 300x300x400 mm</li>
</ul>

<h2>Display Configuration</h2>
<p>The BTT TFT35 V3.0.1 is set up to communicate over specific hardware UART and SPI pins, as defined in the <code>Configuration.adv.h</code> file:</p>

<h3>Hardware UART Pins</h3>
<ul>
    <li><code>UART1_TX_PIN</code>: PA9 (default usage LCD connector)</li>
    <li><code>UART1_RX_PIN</code>: PA10 (default usage LCD connector)</li>
    <li><code>UART2_TX_PIN</code>: PA2 (default usage TFT connector)</li>
    <li><code>UART2_RX_PIN</code>: PA3 (default usage TFT connector)</li>
    <li><code>UART4_TX_PIN</code>: PC10 (default usage TMC UART)</li>
    <li><code>UART4_RX_PIN</code>: PC11 (default usage TMC UART)</li>
</ul>

<h3>SPI Pins</h3>
<ul>
    <li><code>TFT_SCK_PIN</code>: PA5 (Serial Clock)</li>
    <li><code>TFT_MOSI_PIN</code>: PA7 (Master Out Slave In)</li>
    <li><code>TFT_CS_PIN</code>: PB6 (Chip Select)</li>
    <li><code>TFT_DC_PIN</code>: PB7 (Data/Command)</li>
    <li><code>TFT_RST_PIN</code>: PB8 (Reset)</li>
</ul>

<h2>Classic Marlin UI</h2>
<p>If you prefer using the classic Marlin UI, connect the EXP1 or EXP2 connector to the mainboard and enable it in the configuration files.</p>

<h2>Getting Started</h2>
<ol>
    <li>Clone this repository to your local machine.</li>
    <li>Follow the Marlin firmware build instructions to compile and upload the firmware to your 3D printer.</li>
    <li>Ensure all connections are made according to the pin configurations mentioned above.</li>
</ol>

<h2>Contributing</h2>
<p>Feel free to open issues or submit pull requests if you have improvements or suggestions.</p>

<h2>License</h2>
<p>This project is licensed under the MIT License.</p>

<hr>

<p>For detailed information and support, please refer to the official <a href="https://marlinfw.org/">Marlin documentation</a>.</p>

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Marlin 2.1.x Configuration for DIY 300x300x400 3D Printer

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