Low Cost CO Detector Integrated with IoT

This article presents a low cost project focused on detecting carbon monoxide in the environment and warning the user, based on the usage of the MQ-7 sensor, a loudspeaker (active buzzer) and the integrated circuit ESP8266. By means of the mobile application Blynk, the prototype will display the carbon monoxide levels in the environment in real time on your mobile device. If the concentration of carbon monoxide exceed 25 particles per million a loudspeaker will ring and send an alert to the mobile device instructing the people to leave the room, because this level of carbon monoxide concentration can be harmful or lethal to human health. The objective is to monitor the areas where it is possible a harmful concentration of carbon monoxide and ensure that people can leave in time before their health is in danger.