#define MQ9pin A7 // MQ-9 gas sensor connected to A7 Adafruit_BMP085 bmp; // Create BMP180 sensor object SoftwareSerial BTSerial(10, 11); // Define Bluetooth communication pins (RX = 10, TX = 11) int ...

It also has a temperature and humidity sensor ... that the alarm is starting up or in pairing mode. Yellow means there's a malfunction or a low battery, while red means there's a fire or smoke ...

Ever wished your Arduino could send you an SMS alert when something important happens—like an intruder detected by your DIY security system, or a gas leak in your kitchen? With just an Arduino UNO R4 ...

#define outPin 2 // Defines pin number to which the sensor is connected ...

The ability to pick out the hotspots of a fire puts responders "light-years ahead", said fire analyst Ethan Barrett.

The fire was later escalated to a third alarm, according to Tice. Officials said the bulk of the fire was knocked down around 11 p.m. Firefighters were still checking for hot spots as of 12:30 a.m ...

The Bridgeport Fire Department extinguished a two-alarm fire at the SingerCT complex on Barnum Avenue on Saturday night. The Bridgeport Fire Department responded at 6 p.m. to the working structure ...

CLEARWATER, Fla. — Firefighters were battling a three-alarm blaze at a Clearwater treatment center on Sunday morning. Clearwater Fire and Rescue personnel responded to a fire at Fairwinds ...

A two-alarm fire in Halfmoon Township completely destroyed a large garage and threatened to spread as a wildfire Thursday, but seven local fire companies extinguished the blaze within two hours to ...