$50k In Play: Giving Away 50 LightBlue Bean This Week

This week we’re awarding a LightBlue Bean board to 50 projects entered in The Hackaday Prize.

We love this little board so much we put it in our store. It brings a microcontroller that has plenty of room and peripherals (and is quite well-known… the ATmega328) with the connectivity of Bluetooth Low Energy. If you’re planning on building something that needs processing power and connectivity with smartphones this is a good place to start. And this week you might just score one as part of the 2015 Hackaday Prize.

We’ll be looking for entries that are getting ready for the physical build and need connectivity. The best way to let us know your project should be one of the fifty winners is to post a new project log with your construction plans and how the Bean (or BTLE) would fit into that plan. Submit your build by next Wednesday (5/6) and you’re in the running!

We’re giving away $50,000 in prizes, 1/10 of the total Hackaday Prize pool during the build phase going on right now.

Last Week’s 30 Winners

OSHpark-coupon-prize

Last week we were looking for great entries in need of circuit boards and boy, did we find a lot of them. Judging is super hard. We looked at all the entries and ended up with these 30 winners. Each will receive $50 to use for custom PCB manufacturing from OSH Park. We expect to see a lot more purple boards popping up on entry pages in the coming weeks! Congratulations to all winners. Each project creator will find prize info as a message on Hackaday.io.


The 2015 Hackaday Prize is sponsored by:

An ATTiny Bluetooth Board

Since just about everyone who would be interested in electronics has a decent cellphone now, there’s an idea that we don’t need USB or weird serial adapters anymore. Bluetooth LE is good enough for short-range communication, and there are a ton of boards and Kickstarter projects out there that are ready to fill the need.

[Michah] has built what is probably the lowest-spec and cheapest BTLE board we’ve ever seen. It’s really just an ATTiny85 – a favorite of the crowd that’s just slightly above Arduino level – and an HM-10 Bluetooth 4.0 Low Energy module.

This board was developed as a means to connect sensors for a vintage motorcycle to an iOS device for display and data logging. A small, cheap board was needed that could be powered by a LiPo battery, and [Micah] created a board that fit his needs perfectly.

Four of the six IO pins on the ‘Tiny85 are broken out on a pin header; two are used to communicate with the BTLE module. It’s simple, fairly cheap, and can be powered by a battery. Exactly what you need if you want a wireless sensor board. All the files can be found in the Git repo and everything is open source. Not bad.

Bluetooth Low Energy Beacons in a Flock of Birds

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No, not real birds! [Kyle] works in operations at a web company and needed a way to send alerts to his fellow coworkers, so he modified a flock of Audubon Society plush birds to respond to a Bluetooth beacon.

Using NRF24L01+ Bluetooth Low Energy modules, [Kyle] installed one each in these battery-powered singing birds. The devices are presumably powered off of the battery that comes with the birds, but the use of the BTLE module means the batteries won’t discharge as rapidly.

[Kyle] also built an API that works over HTTP or IRC, which means that the employees in the office can activate everyone else’s birds over a simple and intuitive interface. The birds can be activated one at a time, or all together in “panic” mode as one giant flock (in case of an emergency in the office). They can also be activated one at a time on a specific hour to simulate the Audubon Society’s bird call clock.

He calls the device equail and it’s a very unique notification system with a lot of applications. All of [Kyle]’s code and documentation of his project are available on his github site. He also used this primer on BTLE to get started, and this guide on sending data over BTLE to help get the project in the air.