AN10897: A guide to designing for ESD and EMC (courtesy NXP Semiconductors) was an unexpected surprise given the title, but it instantly shot to near the top of my list of all-star app-notes when I started reading through it. Aside from some information and explanations on ESD (ergo the title), the second half of this app note also contains some exceptionally valuable tips on PCB layout and design, particularly where sensitive high-speed signals are involved. The definitive book on the subject is still “High-Speed Digital Design” by Johnson and Graham — I spotted a number of tips in this app note from the book — but if you’re interested in some quick ways to improve your PCB design, this app note is an excellent a free way to get started!
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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