Arduino Forum

Using Arduino => Sensors => Topic started by: yzkevs on Mar 12, 2018, 09:14 am

Title: Recommendation for Sensors
Post by: yzkevs on Mar 12, 2018, 09:14 am
Hello Arduino community!  :)

I am currently working out on 3 mini-projects and I need some advice and recommendation for the type of sensors to be used.

1. A torch light, but as the user hits it, the light turns becomes brighter. By hitting again(detecting movement/vibration) will turn it back to the lower setting (vice versa).

2. A air refresher, as the user wave it hands back and forth, it activates a spray of scent.

3. A table palm size-speaker, as the user uses his/her hands to cover it, it lowers the volume. When the hand is raised above the speaker, the volume turns louder.

I am still new to Arduino (having a very basic understanding) , would greatly appreciate if anyone could share with me similar projects and tutorial I could learn from and recommend the type of sensors I could experiment with!

Title: Re: Recommendation for Sensors
Post by: Koepel on Mar 12, 2018, 11:53 am
Gesture sensor: (
Watch the video on that page, it shows how fun it is but also its limitations.

To hit something can be detected with a mechanical contact, an accelerometer or a piezo disc (knock sensor).
It depends on the device and how you want to hit it. I think that an accelerometer might be the best for this, but perhaps you have to start with something simple.
Title: Re: Recommendation for Sensors
Post by: wvmarle on Mar 12, 2018, 01:56 pm
For the last one you're probably better off with an IR distance sensor ( or a time of flight distance sensor (

For the first two indeed accellerometers come to mind.