746 lines
18 KiB
Markdown
746 lines
18 KiB
Markdown
# FilaMan Wiki - English
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## Table of Contents
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1. [Overview](#overview)
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2. [Installation](#installation)
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3. [Hardware Requirements](#hardware-requirements)
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4. [Initial Setup](#initial-setup)
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5. [Configuration](#configuration)
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6. [Usage](#usage)
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7. [NFC Tags](#nfc-tags)
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8. [Bambu Lab Integration](#bambu-lab-integration)
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9. [Spoolman Integration](#spoolman-integration)
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10. [Octoprint Integration](#octoprint-integration)
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11. [Manufacturer Tags](#manufacturer-tags)
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12. [Troubleshooting](#troubleshooting)
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13. [Support](#support)
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---
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## Overview
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FilaMan is a comprehensive filament management system for 3D printers based on ESP32 hardware. It provides weight measurement, NFC tag management, and seamless integration with Spoolman and Bambu Lab 3D printers.
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### Key Features
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- **Precise weight measurement** with HX711 load cell amplifier
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- **NFC tag reading and writing** for filament identification
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- **OLED display** for status information
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- **WiFi connectivity** with easy configuration
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- **Web-based user interface** with real-time updates
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- **Spoolman integration** for inventory management
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- **Bambu Lab AMS control** via MQTT
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- **OpenSpool NFC format** compatibility
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- **Manufacturer tag support** for automatic setup
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### System Requirements
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- **ESP32 Development Board**
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- **Spoolman Instance** (required for full functionality)
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- **WiFi Network**
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- **Web Browser** (Chrome/Firefox/Safari)
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---
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## Installation
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### Easy Installation (Recommended)
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1. **Open the [FilaMan Web Installer](https://www.filaman.app/installer.html)**
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- Use a Chrome-based browser
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2. **Prepare ESP32**
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- Connect ESP32 via USB to your computer
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- Click "Connect"
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3. **Select Port**
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- Choose the appropriate USB port
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- Confirm selection
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4. **Start Installation**
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- Click "Install FilaMan"
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- Wait for installation to complete
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### Manual Compilation
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For advanced users with PlatformIO:
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```bash
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git clone https://github.com/ManuelW77/Filaman.git
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cd FilaMan/esp32
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pio lib install
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pio run --target upload
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```
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---
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## Hardware Requirements
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### Required Components
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| Component | Description | Amazon Link (Affiliate) |
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|-----------|-------------|-------------------------|
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| ESP32 Development Board | Any ESP32 variant | [Amazon](https://amzn.to/3FHea6D) |
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| HX711 + Load Cell | 5kg Load Cell Amplifier | [Amazon](https://amzn.to/4ja1KTe) |
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| OLED Display | 0.96" I2C 128x64 SSD1306 | [Amazon](https://amzn.to/445aaa9) |
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| PN532 NFC Module | V3 RFID Module | [Amazon](https://amzn.eu/d/gy9vaBX) |
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| NFC Tags | NTAG213/NTAG215 | [Amazon](https://amzn.to/3E071xO) |
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| TTP223 Touch Sensor | Optional for tare function | [Amazon](https://amzn.to/4hTChMK) |
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### Pin Configuration
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| Component | ESP32 Pin | Function |
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|-----------|-----------|----------|
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| HX711 DOUT | 16 | Load cell data output |
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| HX711 SCK | 17 | Load cell clock |
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| OLED SDA | 21 | I2C data |
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| OLED SCL | 22 | I2C clock |
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| PN532 IRQ | 32 | Interrupt |
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| PN532 RESET | 33 | Reset |
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| PN532 SDA | 21 | I2C data (shared) |
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| PN532 SCL | 22 | I2C clock (shared) |
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| TTP223 I/O | 25 | Touch sensor (optional) |
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### Important Notes
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- **PN532 DIP switches** must be set to I2C mode
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- **3V pin** from ESP32 for touch sensor
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- **Load cell wiring**: E+ (red), E- (black), A- (white), A+ (green)
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---
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## Initial Setup
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### After Installation
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1. **ESP32 Restart**
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- System automatically creates a WiFi hotspot "FilaMan"
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2. **WiFi Configuration**
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- Connect to the "FilaMan" network
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- Open browser (automatic portal or <http://192.168.4.1>)
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- Configure your WiFi credentials
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3. **First Access**
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- After successful WiFi connection, access system at <http://filaman.local>
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- Alternative: Use IP address assigned by router
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### Spoolman Preparation
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**Important Note**: Spoolman must run in debug mode:
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```env
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# Uncomment in Spoolman's .env file:
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SPOOLMAN_DEBUG_MODE=TRUE
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```
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This is required as Spoolman doesn't support CORS domain configuration yet.
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---
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## Configuration
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### Scale Calibration
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1. **Start Calibration**
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- Go to "Scale" page
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- Prepare a 500g reference weight (e.g., water glass)
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2. **Calibration Steps**
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- Follow instructions on display
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- Place weight when prompted
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- Wait for calibration to complete
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3. **Validation**
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- Test accuracy with known weights
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- Use "Tare Scale" for zero adjustment if needed
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### Spoolman Connection
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1. **Enter Spoolman URL**
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- Go to "Spoolman/Bambu" page
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- Enter complete URL of your Spoolman instance
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- Format: `http://spoolman-server:7912`
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2. **Test Connection**
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- System automatically checks connection
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- Successful connection shown by green status
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### Bambu Lab Printer (Optional)
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1. **Printer Settings**
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- Open settings menu on your Bambu printer
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- Note the following data:
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- Printer IP address
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- Access Code
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- Serial Number
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2. **FilaMan Configuration**
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- Enter printer data on "Spoolman/Bambu" page
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- Enable "Auto Send to Bambu" for automatic AMS assignment
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3. **Auto-Send Timeout**
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- Configure waiting time for automatic spool detection
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- Recommended value: 10-30 seconds
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---
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## Usage
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### Basic Operation
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1. **Weigh Filament**
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- Place spool on scale
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- Weight automatically displayed on screen and web interface
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2. **Scan NFC Tag**
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- Hold tag near PN532 module
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- Recognized tags display spool information
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- Weight automatically updated in Spoolman
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3. **Status Monitoring**
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- **OLED Display** shows current weight and connection status
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- **Web Interface** provides detailed information and control
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### Web Interface Navigation
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- **Home**: Main functions and current status
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- **Scale**: Scale calibration and settings
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- **Spoolman/Bambu**: System configuration
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- **Statistics**: Usage statistics (if enabled)
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---
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## NFC Tags
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### Supported Tag Types
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- **NTAG213**: 144 bytes (basic functions)
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- **NTAG215**: 504 bytes (recommended)
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- **NTAG216**: 888 bytes (extended functions)
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### Writing Tags
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1. **Prepare Spool in Spoolman**
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- Create new spool in Spoolman
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- Ensure all required data is entered
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2. **Start Tag Writing**
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- Select spool from list
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- Click "Write Tag"
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- Display shows "Waiting for Tag"
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3. **Place Tag**
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- Position NFC tag on PN532 module
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- Wait for confirmation
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4. **Success Message**
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- Successful writing shows checkmark
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- Tag is now linked to Spoolman spool
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### Reading Tags
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1. **Scan Tag**
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- Place the spool with NFC tag on the scale over the NFC reader
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- If reading fails: Reposition spool slightly (not completely at the edge)
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- Spool information automatically loaded
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2. **Automatic Updates**
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- Current weight transferred to Spoolman
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- Spool automatically selected in web interface
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---
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## Bambu Lab Integration
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### AMS (Automatic Material System)
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1. **Display AMS Status**
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- Web interface shows current state of all AMS slots
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- Loaded slots display filament information
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2. **Manual Filament Assignment**
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- Select spool from Spoolman list
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- Click corresponding AMS slot icon
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- Filament assigned to slot
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3. **Automatic Assignment**
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- After weighing with "Auto Send to Bambu" enabled
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- System waits for new spools in AMS
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- Calibrated filaments automatically assigned
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### Bambu Studio Integration
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1. **Sync Filament Profiles**
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- Calibrate filaments in Bambu Studio
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- Use Device → AMS → Pencil icon → Select
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2. **Save Setting IDs**
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- FilaMan automatically detects available setting IDs
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- Click "Save Settings to Spoolman"
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- Profiles used for future prints
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### Restore Connection
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- For connection issues, click red dot in menu bar
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- System automatically establishes new connection
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---
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## Spoolman Integration
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### Automatic Functions
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1. **Spool Synchronization**
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- Automatic transfer of weight changes
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- Real-time updates of spool data
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2. **Extra Fields**
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- FilaMan automatically creates required custom fields
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- NFC tag UID stored as reference
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3. **Filtering**
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- "Show only spools without NFC tag" for easy tag assignment
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- Categorization by manufacturers and material types
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### Spoolman Octoprint Plugin
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For Octoprint users, automatic spool assignment is available:
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1. **Install Plugin**
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```text
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https://github.com/ManuelW77/OctoPrint-Spoolman-Filaman/archive/refs/heads/master.zip
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```
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2. **Configure FilaMan**
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- Enable "Send to Octo-Plugin"
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- Enter Octoprint URL and API key
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3. **Automatic Assignment**
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- After weighing, spool automatically activated in Octoprint
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- Currently supports only Tool0 (first nozzle)
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---
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## Manufacturer Tags
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### Overview
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Manufacturer tags allow filament producers to provide pre-configured NFC tags that automatically create all necessary entries in Spoolman.
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### Getting Started with Manufacturer Tags
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1. **Scan Tag**
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- Place spool with manufacturer tag on the scale over the NFC reader
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- If reading fails: Reposition spool slightly (not completely at the edge)
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- System automatically recognizes manufacturer format
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2. **Automatic Creation**
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- **Brand** created in Spoolman (if not present)
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- **Filament type** created with all specifications
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- **Spool** automatically registered
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3. **Future Scans**
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- After initial setup, tags use fast-path system
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- Immediate weight measurement without re-setup
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### Supported Manufacturers
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- **RecyclingFabrik**: First official partner
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- More manufacturers coming soon
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### Benefits
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- ✅ **Zero manual setup**
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- ✅ **Perfect data accuracy**
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- ✅ **Instant integration**
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- ✅ **Future-proof**
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---
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## Troubleshooting
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### Common Issues
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#### WiFi Connection
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**Issue**: Cannot connect to FilaMan hotspot
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- Solution: Ensure ESP32 is started
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- Alternative: Manually navigate to <http://192.168.4.1>
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**Issue**: Web interface not accessible
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- Solution: Check IP address in router
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- Alternative: Use <http://filaman.local>
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#### Scale
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**Issue**: Inaccurate weight measurements
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- Solution: Repeat calibration
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- Tip: Use "Tare Scale" for zero adjustment
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**Issue**: Load cell not responding
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- Solution: Check wiring (E+, E-, A+, A-)
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- Tip: Test with multimeter
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#### NFC Tags
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**Issue**: Tag not recognized
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- Solution: Check PN532 DIP switches (I2C mode)
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- Tip: Reposition spool slightly on scale (not completely at the edge)
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**Issue**: Cannot write tag
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- Solution: Use NTAG215 for better compatibility
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- Tip: Ensure tag is not write-protected
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#### Spoolman
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**Issue**: Connection to Spoolman fails
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- Solution: Enable SPOOLMAN_DEBUG_MODE=TRUE
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- Tip: Check URL formatting
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**Issue**: Spools not displayed
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- Solution: Ensure Spoolman is running
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- Tip: Check network firewall settings
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#### Bambu Lab
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**Issue**: Printer won't connect
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- Solution: Check access code and IP address
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- Tip: Ensure printer is in LAN mode
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**Issue**: AMS status not displayed
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- Solution: Check MQTT connection
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- Note: Bambu may close API at any time
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### Debug Information
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If you have problems, you can use these steps for diagnosis:
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#### Serial Monitor (for developers)
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- Connect the ESP32 via USB to your computer
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- Open a serial monitor (e.g., Arduino IDE) with 115200 baud
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- You will see detailed log messages from the system
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#### Browser Console
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- Open the FilaMan web interface
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- Press F12 to open developer tools
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- Check the console for error messages
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---
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## Maintenance and Updates
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### Firmware Update
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1. **Via Web Interface**: Access `http://filaman.local/upgrade.html`
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2. **Select firmware file** (.bin format)
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3. **Upload** - System restarts automatically
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4. **Configuration preserved** - Settings remain intact
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### System Reset
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For persistent issues:
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1. Disconnect ESP32 from power
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2. Wait 10 seconds
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3. Reconnect
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4. Wait 30 seconds for complete startup
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---
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## Support and Information
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**Manufacturer**: Your Company Name
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**Maintainer**: Manuel W.
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### Scale Technology
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#### Weight Stabilization
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The system uses multiple filters for precise measurements:
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```cpp
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// Moving Average Filter with 8 values
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#define MOVING_AVERAGE_SIZE 8
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// Low-Pass Filter for smoothing
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#define LOW_PASS_ALPHA 0.3f
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// Thresholds for updates
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#define DISPLAY_THRESHOLD 0.3f // Display update
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#define API_THRESHOLD 1.5f // API actions
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```
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#### Calibration Algorithm
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1. **System Pause**: All tasks are temporarily paused
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2. **Zero Setting**: Tare scale without weight
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3. **Reference Measurement**: 500g weight for 10 measurements
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4. **Calculation**: `newValue = rawValue / SCALE_LEVEL_WEIGHT`
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5. **NVS Storage**: Permanent value with verification
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6. **Filter Reset**: New baseline for stabilization
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#### Auto-Tare Logic
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```cpp
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// Conditions for Auto-Tare
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if (autoTare && (weight > 2 && weight < 7) || weight < -2) {
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scale_tare_counter++;
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if (scale_tare_counter >= 5) {
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// Automatic zero setting
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scale.tare();
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resetWeightFilter();
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}
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}
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```
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### NFC Technology
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#### PN532 Communication
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- **Interface**: I2C at 400kHz
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- **IRQ Pin**: Interrupt-based tag detection
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- **Reset Handling**: Automatic recovery from communication errors
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- **DIP Switches**: Must be set to I2C mode (00)
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#### NDEF Implementation
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```json
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// FilaMan Spoolman Format (with sm_id)
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{
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"sm_id": "123",
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"color": "#FF5733",
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"type": "PLA",
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"brand": "Example Brand"
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}
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```
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#### Manufacturer Tag Schema
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Compact JSON format for storage efficiency:
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```json
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{
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"b": "RecyclingFabrik", // brand
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"an": "FX1_PLA-S175-1000-RED", // article number
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"t": "PLA", // type
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"c": "FF0000", // color (hex without #)
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"cn": "Red", // color name
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"et": "210", // extruder temp
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"bt": "60", // bed temp
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"di": "1.75", // diameter
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"de": "1.24", // density
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"sw": "240", // spool weight
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"u": "https://www.yoururl.com/search?q=" // URL used vor Brand Link and Filament Link
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}
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```
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### Display System
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#### OLED Architecture (SSD1306)
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- **Resolution**: 128x64 pixels monochrome
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- **Areas**:
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- Status bar: 0-16 pixels (version, icons)
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- Main area: 17-64 pixels (weight, messages)
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- **Update Interval**: 1 second for status line
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#### Icon System
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Bitmap icons for various states:
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```cpp
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// Status Icons (16x16 pixels)
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- icon_success: Checkmark for successful operations
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- icon_failed: X for errors
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- icon_transfer: Arrow for data transmission
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- icon_loading: Loading circle for ongoing operations
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// Connection Icons with strikethrough indicator
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- wifi_on/wifi_off: WLAN status
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- bambu_on: Bambu Lab connection
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- spoolman_on: Spoolman API status
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```
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### API Integration
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#### Spoolman REST API
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FilaMan interacts with the following endpoints:
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```http
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GET /api/v1/spool/ # List spools
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POST /api/v1/spool/ # Create new spool
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PUT /api/v1/spool/{id}/ # Update spool
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GET /api/v1/vendor/ # List vendors
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POST /api/v1/vendor/ # Create new vendor
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GET /api/v1/filament/ # List filaments
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POST /api/v1/filament/ # Create new filament
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```
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#### Request Handling
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```cpp
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// Sequential API processing
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enum spoolmanApiStateType {
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API_IDLE = 0,
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API_PROCESSING = 1,
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API_ERROR = 2
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};
|
|
```
|
|
|
|
Prevents simultaneous API calls and deadlocks.
|
|
|
|
#### Weight Update Logic
|
|
|
|
```cpp
|
|
// Conditions for Spoolman update
|
|
if (activeSpoolId != "" &&
|
|
weigthCouterToApi > 3 && // 3+ stable measurements
|
|
weightSend == 0 && // Not yet sent
|
|
weight > 5 && // Minimum weight 5g
|
|
spoolmanApiState == API_IDLE) {
|
|
updateSpoolWeight(activeSpoolId, weight);
|
|
}
|
|
```
|
|
|
|
### Bambu Lab MQTT
|
|
|
|
#### Connection Parameters
|
|
|
|
```cpp
|
|
// SSL/TLS Configuration
|
|
#define BAMBU_PORT 8883
|
|
#define BAMBU_USERNAME "bblp"
|
|
|
|
// Topic Structure
|
|
String topic = "device/" + bambu_serial + "/report";
|
|
String request_topic = "device/" + bambu_serial + "/request";
|
|
```
|
|
|
|
#### AMS Data Structure
|
|
|
|
```cpp
|
|
struct AMSData {
|
|
String tray_id;
|
|
String tray_type;
|
|
String tray_color;
|
|
String tray_material;
|
|
String setting_id;
|
|
String tray_info_idx;
|
|
bool has_spool;
|
|
};
|
|
```
|
|
|
|
#### Auto-Send Mechanism
|
|
|
|
```cpp
|
|
// After tag recognition
|
|
if (bambuCredentials.autosend_enable) {
|
|
autoSetToBambuSpoolId = activeSpoolId.toInt();
|
|
// Countdown starts automatically
|
|
// Waits for new spool in AMS
|
|
}
|
|
```
|
|
|
|
### WebSocket Communication
|
|
|
|
#### Message Types
|
|
|
|
```javascript
|
|
// Client → Server
|
|
{
|
|
"type": "writeNfcTag",
|
|
"tagType": "spool",
|
|
"payload": { /* JSON data */ }
|
|
}
|
|
|
|
{
|
|
"type": "scale",
|
|
"payload": "tare|calibrate|setAutoTare",
|
|
"enabled": true
|
|
}
|
|
|
|
// Server → Client
|
|
{
|
|
"type": "heartbeat",
|
|
"freeHeap": 245,
|
|
"bambu_connected": true,
|
|
"spoolman_connected": true
|
|
}
|
|
|
|
{
|
|
"type": "amsData",
|
|
"data": [ /* AMS array */ ]
|
|
}
|
|
```
|
|
|
|
#### Connection Management
|
|
|
|
- **Auto-Reconnect**: Client-side reconnection
|
|
- **Heartbeat**: Every 30 seconds for connection monitoring
|
|
- **Cleanup**: Automatic removal of dead connections
|
|
|
|
### Watchdog and Error Handling
|
|
|
|
#### System Watchdog
|
|
|
|
```cpp
|
|
// WDT Configuration
|
|
esp_task_wdt_init(10, true); // 10s timeout, panic on overflow
|
|
esp_task_wdt_add(NULL); // Add current task
|
|
```
|
|
|
|
#### Error Recovery
|
|
|
|
- **NFC Reset**: Automatic PN532 restart on communication errors
|
|
- **MQTT Reconnect**: Bambu Lab connection automatically restored
|
|
- **WiFi Monitoring**: Connection check every 60 seconds
|
|
|
|
---
|
|
|
|
## Support
|
|
|
|
### Community
|
|
|
|
- **Discord Server**: [https://discord.gg/my7Gvaxj2v](https://discord.gg/my7Gvaxj2v)
|
|
- **GitHub Issues**: [Filaman Repository](https://github.com/ManuelW77/Filaman/issues)
|
|
- **YouTube Channel**: [German explanation video](https://youtu.be/uNDe2wh9SS8?si=b-jYx4I1w62zaOHU)
|
|
|
|
### Documentation
|
|
|
|
- **Official Website**: [www.filaman.app](https://www.filaman.app)
|
|
- **GitHub Wiki**: [Detailed documentation](https://github.com/ManuelW77/Filaman/wiki)
|
|
- **Hardware Reference**: ESP32 pinout diagrams in `/img/`
|
|
|
|
### Support Development
|
|
|
|
If you'd like to support the project:
|
|
|
|
[](https://www.buymeacoffee.com/manuelw)
|
|
|
|
### License
|
|
|
|
This project is released under the MIT License. See [LICENSE](LICENSE.txt) for details.
|
|
|
|
---
|
|
|
|
**Last Updated**: August 2025
|
|
**Version**: 2.0
|
|
**Maintainer**: Manuel W. |