Making Use of Stellaris/Tiva Real-Time Clock

If you’re at all like us, or like [Vadim], you’ve got a stash of development boards in a shoebox on a shelf in your closet. If you’re better organized that we are, it might even be labeled “dev boards”. (Ah well, that’s a project for another day.) Anyway, reach into your box and pull one out, and put it to use. Do something trivial if you need to, but a dev board that’s driving a silly blinker is better than a dev board sitting in the dark.

[Vadim]’s good example to us all is going to serve as the brains for an automated plant watering system. That’s a low-demand application where the microcontroller can spend most of the time sleeping. [Vadim]’s first step, then was to get a real-time clock working with the hibernation mode. There’s working code inline in his blog.

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“I don’t know, I didn’t go into Burger King.”

If you use Arduino, you’ll feel at home in the Energia ecosystem. But it’s like ordering a Quarter Pounder with Cheese in Paris: Energia is a Royale with Cheese (YouTube) — it’s the little differences. And maybe that’s the point of the exercise; it’s always a good thing to try out something new, even if it’s only minimally different.

So grab that unused dev board off the shelf, struggle through the unfamiliar development environment and/or toolchain, but remember to keep an eye out for the sweet little differences. The more tools that you’re familiar with, the more solutions will spring to mind when you’re hacking on your next project.

Hackaday Store Sale Ends Sunday!

Since the Hackaday Store Spring sale launched, hundreds of items have been flying out the door (sadly only metaphorically, not by drone delivery), and the warehouse robot uprising has been somewhat quelled.

But, all good things must come to an end. Sunday night, the big discounts will disappear and regular prices will return. Until then you can get up to 30% off a range of electronics toys, hardware tools, DIY kits, and Sparkfun items.

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Have your eye on [Technolomaniac]’s Hackaday branded Arduino-compatible Spartan-6 FPGA Development Board, [Paul Stoffregen]’s super Teensy 3.2 microcontroller, or [Travis Goodspeed]’s USB fuzz-test tool Facedancer21? Get them now at a discounted price. Shipping is free on orders over $35 to the US, $50 to Canada, and $75 to the rest of the world. There’s no excuse not to start your next Hackaday.io project now.

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Need more Hackaday swag? The CRT Android and Robot Head tee are 30% off, as is our women’s fit Hackaday.io t-shirt. The Hackaday edition Trinket Pro, TV-B-Gone, and Huzzah ESP8266 dev board are all 10% off.

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Stocks are getting low on some items. Bus Pirates and Bulbdial Kits have been particularly popular. We’ve only got a few XuLA2-LX9 FPGA Boards, JTAGulators, Whistled and DSOtouch left. [Adam Fabio]’s Analog Gauge Stepper, [Macetech]’s RGB Shades, and [BleepLabs]’s Nebulophone have already sold out during this sale. Check out the Spring sale today and get yourself a deal before they’re gone.

Sale ends 11:59 PM PST on Sunday, 10 April (or while supplies last). Sale items are at clearance prices and are final sale. No returns accepted. We will only allow exchanges for the same item or store credit if the item is faulty.