---
title:        'Marlin working explained'
description:  'Finally! How marlin works as Marlin'
tag: documentation

author: chepo92
category: [ development ]
---

<!-- ## The Layers of Marlin -->

## Main

## Libraries

### From code to bits and pins: pins and marlin HAL

### Pins

### HAL

## The primitive's 3D printer: Basic functions

### Movement

### Temperature reading

### Heating

## From grbl and sprinter to Marlin

### GCode Parser

### Planner

## The beginner's 3D printer

### Endstops

### Temperature control loop

### Serial comunitation

### SD support

### LCD

## The advanced 3D printer

### Probe

### Bed Leveling

### Digipots

### LEDs

### MMU2

### Touch

### Laser