As you can see above, the low pass filter is made up of one ... choosing the component values for your own filters. His examples center around an Arduino using the analogWrite() function but ...

A Butterworth low pass filter processes the DDS signal and then ... [Brett] uses a Python program to process the data from the Arduino. For example, here’s a plot of a 10 MHz crystal from ...

Arduino has taken the product “maker” world by storm ... The images are far from the 3 MHz fundamental making them simple to filter using a low pass filter. Figure 3 The DDS unfiltered output spectrum ...