MPL3115A2 pressure sensor and ESP8266

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The Wemos PIR shield

A new wemos shield and this time its based on a  passive infrared sensor

An overview of a PIR

A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors. A PIR-based motion detector […]

ESP8266 and Ambient light Shield example

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ESP8266 and SHt30 shield example

This time we look at the SHT30 shield from Wemos. Now there are other versions of this board as well, this is the official one. You will notice they now use LOLIN (after all of the dubious clones of their products I’m assuming on the internet)

For reference the other boards look like this, […]