LoRa now supports mesh networking thanks to Meshtastic, an open-source platform enabling secure, low-power, long-range ...

The video shows how the pulsing laser damaged individual pixels on the sensor when the camera operator zoomed in, then it shows how the image was unaffected when using the wider-angle camera ...

Optical whispering-gallery-mode microlaser sensors work by trapping light in tiny microcavities. When the target molecules bind to the cavity, they cause slight changes in the laser's frequency ...

What if you could get an instant SMS alert the moment a fire or smoke is detected at home or office? Through this project tutorial, you can build a fire and smoke alarm system using Arduino UNO R4 ...

The newest version of the self-cleaning litter box has both laser and weight sensors so it can trigger the stop mechanism more readily, even if your cat is just peeking into the opening and hasn ...

This work is motivated by the EnviroDIY community vision to create an open source hardware and software stack to deliver near real time environmental data from wireless sensor networks, such as the ...

The MEMS actuator achieves a mechanical scanning amplitude of ±4° horizontally and ±3° vertically, while the field of view of the overall sensor is 45 by 110. Distance images were acquired outdoors in ...

Abstract: In this letter, a temperature sensor based on a fiber ring laser with a reflective Sagnac loop is proposed. The reflective Sagnac loop inserted into the fiber ring laser through a download ...

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Water level monitor using open-source microcontrollers (Arduino, ESP8266, ESP32) and ultrasonic sensors HC-SR04 / JSN-SR04T and similar with Trigger and Echo signals. Arduino Core & ESP-IDF ...