Want to track your 3D printer's progress at a glance—no app opening, no screen tapping? I rigged up a 16x16 LED grid and an ESP32 I had lying around. Now, whenever a print starts, it shows real-time progress directly on the panel via WLED and Home Assistant.Here’s exactly how to set this up. 🛠️ RequirementsMust-Have:ESP32 with WLED installedWLED added to Home AssistantA 16x16 (or any size) LED grid panel wired to ESP32Bambu Lab Integration installed in Home AssistantOptional but helpful:ChatGPT (to help out with coding if you get stuck) ✅ Step-by-Step Setup GuideStep 1: Add REST Command to ConfigurationWe’ll create a REST command in configuration.yaml that sends custom text updates to your WLED device. Open your configuration.yaml and add: # WLED TEXT CHANGER rest_command:  wled_text:    url: "http://WLED_IP/json/state"    method: POST    content_type: "application/json"    payload: ‘{"seg": [{"n": "{{ text }}"}]}’⚠️ Replace WLED_IP with your actual WLED device IP address and fully restart Home Assistant afterwards. Step 2: Create a Text HelperWe’ll need a text input field in Home Assistant to dynamically hold and send text to WLED.Go to Settings → Devices & Services → HelpersClick “+ Create Helper”Select “Text”Name it: Text_WLED_TextBoxSet Display mode to TextPick an icon if you want Step 3: Create an Automation to Update WLEDThis automation grabs the printer’s progress and sends it to your WLED grid.Go to Settings → Automations & ScenesClick “+ Create Automation”Choose “Start with an empty automation”Set a name like: WLED_PrintProgressUpdateTrigger ("When"):Choose your Bambu printer progress sensor.Example: sensor.a1_000000000000000_print_progressAction ("Then do"):Choose: Call ServiceService: rest_command.wled_textYAML mode:service: rest_command.wled_text data:  text: “{{ states('sensor.a1_000000000000000_print_progress') }}%”⚠️ Adjust sensor.a1_000000000000000_print_progress to match your exact printer entity. Step 3a: Test the WLED Text ManuallyLet’s verify WLED accepts text commands.Go to Developer Tools → ActionsClick “Go to YAML mode”Paste this and hit “Call Service”:service: rest_command.wled_text data:  text: “Hello WLED!”If you see “Hello WLED!” scroll across your LED panel, everything’s working.  Final Notes / ChecklistESP32 is flashed with WLED and connected to the LED panelWLED is configured in Home AssistantBambu printer entity is available and updatingREST command is in configuration.yaml (restart required after adding)Automation is correctly wired to the printer progress sensorYou can test and confirm text displays on WLEDFor an awesome 16x16 LED grid print, check out this one. Been using it myself and the diffusion is good! This is my first guide and I did most of this from memory. If something is not working or missing, feel free to let me know and will try to help you out.