Dear all,
I'm new to Arduino. I have searched in the forum but I have not found the information I think I need.
The problem is as this:
- We have a sensor that after exciting it with a 3 V produces a signal which goes from 0 V to 3 V proportional to the variable we would like to measure.
- I understand that I can connect it to the Arduino board with the 3.3 V source and connect it to an analog input. Then use the AnalogRead instruction to read the voltage.
- However, if I use this way, it will use a lot of battery since the sensor is connectec all time long.
I was looking for a method that I could excite the sensor for a few milliseconds, delay and then measure. But I have not been able to find an example, or even better an expansion shield board that allows to do that.
Does any one can help me to find the information on how to do it with Arduino ?
Regards,