DIY Digital Spirit Level || Accelerometer Tutorial

Parts list (incomplete, see Instructables for more, affiliate links):
Aliexpress
Ebay:

Websites shown during the video:

In this small project we will have a closer look at accelerometer ICs and find out how we can use them with an Arduino. Afterwards we will combine such an IC with a couple of complementary components and a 3D printed enclosure in order to create a digital spirit level.

Thanks to JLCPCB for sponsoring this video

Music:
2011 Lookalike by Bartlebeats
Killing Time, Kevin MacLeod

[wefyb]

Hey Scott, another way of reducing noise is to use all three axes simultaneously in your calculations. If you use the angles between the values you reduce your nose significantly, and get a now accurate reading overall. If you combine that with the 9250 chip you would get virtually zero noise in the calculation. Loved the project!

[LegalSkateboarding]

Not going to lie GreatScott. At first glance of the title I thought you were going to be turning into one of those nutty ghost hunters.

[SpecialEDy]

Got to love those $1.50 ebay Nano clones.

[motherjoon]

A couple quick modifications that would've made this better:

-Adding Kalman filter, to use the gyro as well, in order to cancel out the shaking noise.
-An offset zeroing button that zero'ed the level, allowing for relative leveling.

Great video tho!

[Elias]

You are the most person I have ever seen in my life who can control his information with practical application .... You are wonderful
I am studying the mechatronic geometry

[tolgacool]

Bubble levels are pretty cool when you think of it. You can even get high precision bubble levels that show you an error of 0.01mm/m! That's just ridiculously accurate

[gotbread]

You did a small angle approximation. To really get an angle from the accelerations you need an atan2 function. Division works only for angles close to zero.

[laflafd]

Thanks a lot for your videos. I like how your speak English because very easy to understand. Your videos are very clear and bring me lot of knowledge. It's a treasure!

[deltaphoenix]

Keine schlechte Idee. Ich wusste nicht mal, dass eine Wasserwaage im englischen spirit level heißt. Vielen Dank für das schöne Video!

[chrisellingson]

A quick way to improve accuracy is to use all three axis in the tilt calculation. Some MEMS accelerometer manufactures have white papers on such topics. You will find errors once the tilt exceeds 45° or more if only one axis is used.

ST application note - AN4509 will provide more info.

[RonAlbert]

I like how he says "air bubble" xD

[pankajroy]

*AFROTECHMODS AND YOU MAKE THE BEST ELECTRONICS VIDEOS IN THE WORLD. ECLECTROBOOM COMES NEXT WITH HIS FUNNY EXPLODING VIDEOS.*

[northshorepx]

Amazing. Very good intro for those of us who are way behind in our skills.

[thewunderhase]

I like the bubble ones. They just work, even without power. They are just perfect. :D

[CoolAsFreya]

This was a really cool project! It would also be interesting to see a two-axis digital spirit level, much like the spirit level app built in to many smartphones

[michaelo]

Watching you rub the highlighter across the paper gives me a unpleasant shivers like nails down a chalkboard.

[zanpekosak]

Finally projects we can make and understand. Thanks! Great video.

[francoisguyot]

Hi Greatscott ! Love your video !
I've never been able to read the right Z angle using your code, but x and y are perfect !

[PoopCop]

Stabila! The finest German made levels out there

[felix-exacoulomb]

Could you do a video on industrial PCB manufacturing?
Maybe a direct collab video with JLCPCP?