Hi guys, I am designing a prototype board that needs to have PIR sensor, sound sensor, and vibration sensor. The board will be powered by two 18650 batteries. As this is a prototype, so we can use modules instead of discrete components. I am looking for suitable low power modules for PIR, sound and vibration sensors. I have found some, but looking to get more in terms of performance and battery. The output should be analog, so that I can set different thresholds using microcontroller to get better results. Can you guys suggest some modules that are suitable for this purpose?
Regards,
PIR's are digital.
One needs to know if something is within range and whether it moved or it didn't.
You can use HC-SR501 PIR sensor, for vibration sensor try SW-420.
Moreover use sleep mode of Arduino to save energy.
looking to get more in terms of performance and battery.
More than what?
Post numbers with units of measurement.
You can use HC-SR501 PIR sensor, for vibration sensor try SW-420.
Yes both are good. I have looked at SW-420's IC's datasheet and it says it consume 0.4mA typical. So I think I can use this if I do not find anything better than this.
Why two?
To increase battery life by putting two in parallel.
More than what?
I meant to say that comparatively better than all available in terms of performance but they should be low power. Low power is the essential part.
Workaholic:
The output should be analog, so that I can set different thresholds using microcontroller to get better results.
jackthom41:
You can use HC-SR501 PIR sensor, for vibration sensor try SW-420.
Moreover use sleep mode of Arduino to save energy.
Workaholic:
Yes both are good.
Both are digital output where you specified analog.
bluejets:
Both are digital output where you specified analog.
Instead of pointing it out, you should have mentioned one.
Anyways, I have never heard of analog PIR sensor so you have to use HC-SR501. As the vibration sensor is concerned, you can use SW-18010P it gives both analog & digital output.