Feeds

So cool it 2.4 gigahertz: BATTERY-FREE comms for international band

Embedded wireless bods show off first prototype this month

Internet Security Threat Report 2014

Embedded wireless solutions company EnOcean is planning to show the first self-powered transmitter to work at 2.4GHz.

The radio isn't passive, the power to run the radio is generated through motion, light or temperature changes.

Specifically this takes the form of an electromechanical converter which is as easy to press as a light switch. The effort necessary is easily within the limits of a panic alarm button for the elderly and infirm.

With 0.7mm of travel, the converter produces between 120 and 140 microjoules, which is enough to send 32KB of data. Bandwidth is 125KB/s, but the burst is very short. EnOcean said it had tried piezo electric solutions but found them to be less efficient, bulkier and less reliable.

With a constant power stream, it has the ability to do two-way communications, and to foster development of this, EnOcean has produced SDKs for thermal, solar and mechanical power harvesting. Each contains the small power source and a DC step-up transformer to produce the 3v the radio needs to run along with the radio itself.

The SDK is aimed at corporates who will buy EnOcean chips in quantity but the firm is happy to entertain hobbyists whom they have identified as providing a good source of innovation, so the SDK pricing starts at under €50.

For example, you could build something where when you press the black button and a little sign lights up saying "Do press this button again".

The EnOcean self-powered prototype will debut at Embedded World 2014 in Nuremberg which has, as ever, been carefully timed to clash horribly with Mobile World Congress between the 25th and 27th of this month.

Hmm, Nuremberg or Barcelona? - that's a toughie. ®

Business security measures using SSL

More from The Register

next story
Brit telcos warn Scots that voting Yes could lead to HEFTY bills
BT and Co: Independence vote likely to mean 'increased costs'
Phones 4u slips into administration after EE cuts ties with Brit mobe retailer
More than 5,500 jobs could be axed if rescue mission fails
New 'Cosmos' browser surfs the net by TXT alone
No data plan? No WiFi? No worries ... except sluggish download speed
Radio hams can encrypt, in emergencies, says Ofcom
Consultation promises new spectrum and hints at relaxed licence conditions
Blockbuster book lays out the first 20 years of the Smartphone Wars
Symbian's David Wood bares all. Not for the faint hearted
Bonking with Apple has POUNDED mobe operators' wallets
... into submission. Weve squeals, ditches payment plans
This flashlight app requires: Your contacts list, identity, access to your camera...
Who us, dodgy? Vast majority of mobile apps fail privacy test
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Security and trust: The backbone of doing business over the internet
Explores the current state of website security and the contributions Symantec is making to help organizations protect critical data and build trust with customers.