A little background: I’ve designed what is, among other things, a little tiny VHF radio modem for goTenna, a Brooklyn hardware startup. It’s a very demanding design, with tight limits on battery life, size, shape, range, power — everything you can think of is at the edge of what can be done. The point of goTenna is that you can pair the device with your smartphone so you can send short-burst communications (e.g. text messages, geo-locations) smartphone-to-smartphone (via goTenna, of course) without ever having to plug into central connectivity. Yep, that’s right: totally off-grid, 100% decentralized communications using the phone you already have on you all the time! (And goTenna goes on pre-order today: learn more about goTenna and buy a pair for $149.99 here!) In the process I’ve learned a lot of new techniques. I hope to share them with you, budding RF engineer! Today, we discuss measuring a radio’s sensitivity.
Adafruit has had paid day off for voting for our team for years, if you need help getting that going for your organization, let us know – we can share how and why we did this as well as the good results. Here are some resources for voting by mail, voting in person, and some NY resources for our NY based teams as well. If there are additional resources to add, please let us know – adafruit.com/vote
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, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, 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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