Can we make any project for the certificate?

can i make a alcohol detection sensor ?
and can u suggest me some more projects that can be prepared for that…
i m from boltiot training…

@Amrita_dey

You can refer to the below link where the speaker has made a project with an MQ7 sensor to detect Carbon Monoxide gas. You can use an MQ3 sensor which is an alcohol sensor.

https://www.hackster.io/parijatkundu244/lpg-gas-detecting-and-alerting-system-using-bolt-iot-4c86d5