Entrance signaling system
Description
This is the perfect item for your home office, an entrance signaling system. Perfect when the family walks right in to meetings. Now then can press the button and you will silently respond to if they can come in, wait or if you are busy. https://www.youtube.com/watch?v=2obw8Yhhu6g Wemos D1 mini is used as IoT device connecting to a local Node-RED MQTT broker. Device subscribes to a topic that then lights up the 3 addressable RGB LED lights when message is received on that topic. When button is clicked it publishes a message to the Node-RED MQTT broker. Then Node-RED sends a message to Telegram with a inline keyboard that you easily can click to light up the message of your choice by it publishing to the above mentioned topic. Aurdino code example, Node-RED flows can be downloaded here https://github.com/JohGiz/entrancesystem
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