Allen Downey’s book Think DSP is available to read free in HTML or PDF forms and is a good overview of signal processing using the Python programming language. Allen has a whole series of books about programming Python on specific topics like statistics, algorithms, and more. I really enjoyed Think Stats, and skimming Think DSP it appears to be a quite nice intro to signal processing. If you’ve ever wondered how things like digital audio filters work or what you can do with an FFT this is a great resource to check out.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
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