Alcohol Meter Device with MQ3 sensor - BAC% or PPM

High quality PCB prototypes: 🔥How to properly measure alcohol in the air using the MQ-3 sensor and the Arduino code to read the data and values from the datasheed graph. Display PPM values, BAC in % or other concentration values 🔀LINKS ------------------------------------- Tutorial page: My tools: False/True T-Shirt: 🤝SUPPORT ------------------------------------- Join my Arduino Course (Spanish): : Donate on PayPal: Help my projects on Patreon : my Q&A page: Facebook page: Canal en Español: 00:00 Intro 02:10 How MQ-3 Sensor works? 05:13 Circuit and output 06:38 PPM read equations 10:12 Assmeble 12:07 Test 13:40 Thank You Like share and subscribe to motivate me. Thank you #electronics #homemade #circuits