MQ-5 Combustible Gas Sensor can detect LPG, H2, CH4, and CO. Let's learn how gas sensor work and how we can use it with Arduino ...

This presence detector or proximity sensor circuit reacts in presence of any conductor object including humans. Sensitivity is adjustable with P1 which will be located at a great distance from the ...

Proximity Sensor IoT Based Smart Bin Our IoT-Based Smart Bin project features a custom-built IoT system and Firebase database, using the Arduino Uno R4 WiFi… CodeCell: A Tiny ESP32 Development Board ...

Sketch for a capacitive proximity / touch sensor with Arduino. This sensor based on a square wave generator rather than charge time measurement as the popular CapSense library. This design results in ...

This project contains the definition of an Arduino library for the VCNL4000 sensor. This sensor is able to perform relatively short (< 7 inches) proximity sensing and light intensity readings. The ...

The hardware is consists of an Arduino microcontroller (here an Arduino Uno R3) and a pre-wired soil moisture sensor module. The soil moisture sensor module , built around the LM393 comparator, gives ...

[Dustin Andrews] built this add-on board which works as a proximity sensor. He wanted a standalone sensor for his Arduino projects which would use a single pin as a trigger. This lets him alert ...

Arduino based Fire Alarm – Circuit and Working Fig. 2 presents the circuit diagram for the fire alarm using a flame sensor and Arduino Nano. The system is powered by a step-down transformer (X1), a ...