Aqara is introducing a new presence sensor that is a natural addition for HomeKit users who want reliable automations without the need for a camera. The new Aqara FP300 combines mmWave presence ...

Default value for maximum measurement distance is 4m, since HC-SR04 sensor can't measure reliably beyond that. However, if you are using another sensor or if you you don't care about distances larger ...

The Smart SMS Alert System using Seeed Studio Xiao ESP32 is one of the compact IoT projects that uses an HC-SR04 ultrasonic sensor to detect nearby movement. The system acts like a motion detector ...

This readme provides instructions on how to build / use a Meshtastic I2C sensor in both host and client modes. There are two PlatformIO environments available as examples to build off of: kb2040_host ...

Abstract: In this paper, a multimodal hand gesture detection and recognition system using differential Pyroelectric Infrared (PIR) sensors and a regular camera is described. Any movement within the ...

Abstract: A remote radiation monitoring system is proposed. A method for measuring and analyzing the background radiation level in a given space is developed, based on a Geiger-Müller sensor. The ...