This is an absolutely exhaustive document from our friends at Cypress Semiconductor on antenna designs and RF layouts, specifically looking at implementations using their PRoC BLE and PSoC 4 BLE 2.4-GHz radios, with supporting Smith charts, and examinations of band emissions, network topologies, and much, much more. If you have a long train ride in your near future or are looking for a good antenna/RF read, take a look at this white paper.
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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