I used a Homatic HM-OU-LED16 display to show which windows in the house are open and some some other infos. This works since years very good, leaving the house a red LED shows that I missed to close a window or tat it is time tu put the rubbish bin to the street.

Since some month I got more and mor trouble with wrong data shown on this display. As I was not able to solve the problems, I decided to bild up sometthing new.

Base are:

• wo NeoPixel sticks with 8 LEDs  
• one ESP32 NodeMCU

8 LEDs on both sides, in the middle enough space for a sheet of paper to print out for what each LED stands. 

Statusanzeige v44: 

• Fusion 360 model of the complete display
   

This are the parts of the housing:

ESP32_Boden: 

• The ESP32 NodeMCU fit inside with the bottom up 
• can be screwed to “FrontHinten” 

ESP32_Top: 

• The cover of the ESP32 can be slided over the ESP 32
• Can be screwed from the bottom  to “ESP32_Boden”

FrontHinten : 

• the two NeoPixel sticks fit in the back of the part. 
• I soldered pin headers to the NeoPixel sticks to connect them easy 
   

HaubeKomplett:

• The front housing 
• A 2mm acryl glass is used to prevent the paper from getting dirty,
  it fits inside (see “Plexiglas”)

HaubeHinten:

• The back of the housing with 4 screws

All parts can be printed without brim or supports. 
I did it with a MK3

dl-status-anzeige.zip :

•  YAML file for ESPhome
• done in that way that you can address each single LED, set the color and the brightness
  
  
  Example automation which switches one LED depending of the state of a window group.
  LEDs will be addressed by “my_led_id”

alias: status_led_AZ description: Gruppe der Fenster im Arbeitszimmer trigger: - platform: state entity_id: - binary_sensor.az_fenster_group - input_number.dl_status_led_brightness - platform: time_pattern minutes: "0" - platform: numeric_state entity_id: - sensor.dl_status_anzeige_uptime below: 0.5 condition: [] action: - service: esphome.dl_status_anzeige_change_dl_led data: my_led_id: 15 my_red: "{{ 1 if is_state('binary_sensor.az_fenster_group','on') else 0 }}" my_green: 0 my_blue: 0 my_brightness: "{{ float(states('input_number.dl_status_led_brightness')) }}" mode: queued max: 3