How to get correct readings from arduino sensors : i am currently working on my graduation project.
i'm using 6 different sensors which are working simultaneously. But i got a problem in the readings from the LM35 temperature sensor and the MQ-7 Carbon Monoxide sensor. The readings are changing depending on the power source. how to fix this problem? i'm planning to use a Sony battery bank to feed my system by i get wrong readings especially from the temperature sensor.
Thank you  