Organize and Share your Electronics the way you want. Sign-Up for a free account now. It takes only 30 seconds!

3 simple filtering techniques to eliminate noise

3 simple filtering techniques to eliminate noise

Increasing accuracy in the collection of data coming from sensors is a need that, sooner or later, Makers need to face. Paul Martinsen from MegunoLink created a tutorial to eliminate noise from sensor readings on Arduino with three simple filtering techniques.

The Averaging and Running Average techniques are easy to implement as they work by adding a number of measurements together, then dividing the total by the number of measurements. In both cases, the downside is that it can use a lot of memory.

The Exponential filter is a better solution for several reasons: it doesn’t require much memory, you can control how much filtering is applied with a single parameter, and it saves battery power because you don’t need to make many measurements at once. For this solution, they developed an Arduino filter library so you don’t need to go mad with math!

Filtering

Interested? You can find the tutorial and explore the code on MegunoLing’s blog post here.

Read more Here

 

More Articles to Read

Single tube Lethal Nixie clock
Single tube Lethal Nixie clock
Dot² isn’t your typical coffee table
Dot² isn’t your typical coffee table
A 3D-printed e-drum pad
A 3D-printed e-drum pad
Interactive geodesic LED dome = extreme geometric fun!
Interactive geodesic LED dome = extreme geometric fun!
Emulate a Commodore 64 keyboard with a modern PC and an Arduino
Emulate a Commodore 64 keyboard with a modern PC and an Arduino
Control a tracked robot with your mind (or joystick)
Control a tracked robot with your mind (or joystick)
Bridge Monitoring System using Wireless Sensor Network
Bridge Monitoring System using Wireless Sensor Network
An Arduino-powered automatic guitar footswitch
An Arduino-powered automatic guitar footswitch
These students created their own Overwatch VR rig
These students created their own Overwatch VR rig
Attachment is like a modern-day message in a bottle
Attachment is like a modern-day message in a bottle

Top




Shares