Note. A compact analogue reflectance sensor such as the CNY70 was not used in the Arduino Uno experiments described. Instead, a homemade sensor was assembled using a single infrared LED (IR333C) and a ...

The sensor triggers when the feet come in contact with water; typically, just a few drops set it off. The device then sends a push alert or email (or both) and sounds an alarm.

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The SGP30 is a digital multi-pixel gas sensor designed foreasy integration into air purifier, demand-controlledventilation, and IoT applications. Sensirion’s CMOSens®technology offers a complete ...

ultrasonic-buzzer-alert Ultrasonic Sensor Buzzer Alert This is an Arduino-based distance detection system using an HC-SR04 ultrasonic sensor. When an object comes within 100 cm, the system activates a ...