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esphome-sensor2's Introduction

ESPHOME-Sensor2

The first Sensor was just a test but this one is really usefull.

A mm wave sensor is sometimes too slow in detecting a person entering the room, adding a PIR sensor solves that issue. Because I had some Arduino sensors unused in a box I added the DH2 sensor. The DH2 sensor reads temprature and humidity.

Also the first sensor was batery powered, that did not last long so this one is powered by USB.

Diagram of how it is all connected

Sensor2-mmw-pir-dh

The ESP-01 and the DH2 need both a pull up resistor. I used for the ESP-01 a 100k resistor and for the DH2 a 10k resistor.

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