The project involves coming up with a smoke detector with notifications through the Blynk appplication. It can be used to detect air quality especially in offices, detecting gas leaks among other applications
Hardware 1 NodeMCU, 1 MQ-2 smoke-detector, 1 Breadboard, Several jumper-wires
Software Blynk app
Operating voltage: 5V, Load resistance: 20 KΩ, Heater resistance: 33Ω ± 5%, Heating consumption: <800mw, Sensing Resistance: 10 KΩ – 60 KΩ, Concentration Scope: 200 – 10000ppm, Preheat duration: 20 seconds
Pin-out
VCC: +3~5V, GND: Ground, D0: Digital Out, A0: Analog Out
