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Connecting a Bare PIR Sensor to Arduino – Does It Work?

Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I ...
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SwitchBot Launches New PIR Presence Sensor

SwitchBot has announced a new product called the Presence Sensor with mmWave Radar. This sensor is built to detect people in ...

Meross’ radar presence sensor ditches the cord and adds Matter-over-Thread support

A single battery can power the MS605 mmWave radar presence sensor for up to three years. Meross has announced a new version of its MS600 presence sensor that’s now battery-powered, so installation ...

Aqara’s cord-free presence sensor runs for up to three years on battery power

The $50 sensor runs on two coin cell batteries so you don’t need a nearby power source for installation.
IEEE

Simplified Three-Wire and Four-Wire Interface for Resistive Sensor Measurement Using Microcontroller ADCs

Abstract: This article presents a simplified three-wire and four-wire measurement method for accurately determining the resistance of sensors, such as resistance temperature detectors (RTDs), using an ...