Home

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 was not able to solve the problems, I decided to bild up sometthing new.

Base are:

• two NeoPixel sticks with 8 LEDs (like tis one example NeoPixel Stick
• one ESP32 NodeMCU (like this one: ESP32)

Code for ESPHome is here: EspHome Code

The wiering is shown in this picture:

• 5V from ESP32 to NeoPixel
• GND from ESP32 to NeoPixel
• GPIO 13 for data connection
• The 2. NeoPixel is connected 1:1 to the first one

How to use