A little light reading implies something different to us than it does to [Hamster]. He’s been making his method with a book called The scientist as well as Engineer’s guide to digital Signal Processing written by [Steven W. Smith, Ph.D]. Being the hacker type, a million different uses for the newfound understanding popped to mind. however as a sanity inspect he chose to focus on a helpful proof of idea first. He’s come up with a method to filter out the mains hum from Analog to digital Converter samples.

Mains hum is all around us; produced by the alternating present in the power grid that runs our contemporary lives. It’s a type of interference that can be rather problematic, which is on reason why we see EMF sensor projects from time to time. now you can filter that ambient interference from your projects which take readings from an ADC. This would be rather helpful for applications which measuring teeny signals, like ECG hacks.

[Hamster] did a quite great task of presenting his presentation for the uninitiated. He even offers examples for Arduino or FPGA projects.