DIY Breathalyzer Using Arduino UNO

https://www.electronics-lab.com/diy-breathalyzer-using-arduino/

Today I am going to discuss how to make a very simple DIY Breathalyzer using Arduino UNO and few external components. Ana Carolina designed this project as an instructable in instructables.com. This is a low-cost project and a useful one too. If you have no idea about what breathalyzer is, let me explain briefly: A breathalyzer is a device […]