WirelessTransceiver
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Q2 and Q4 Xbee controllers have the gimbals to handle your most unwieldy robotics projects
Yes, we've seen an XBee radio interface with RC robots before, but Quantum Robotics' open-source Xbee handheld controllers have enough gimbals, push buttons and toggle switches to leave us starry-eyed. The Q2 and Q4, both open for funding on Kickstarter, use a XBee wireless transceiver to transfer data and a Parallex Propeller to act as the main processor, and both models put most controllers to shame with a ton of options. While the Q4 uses four PlayStation-style joysticks, the Q2 sports two RC gimbals, and both can be modified to add extra functionality based on the project at hand. Clearly, the more complicated the robot, the more fun these controllers are -- take a look at the Q4 interacting with a hexapod and a robotic arm in the video below.
Researchers use wireless network to monitor breathing, could save lives
When Neal Patwari and his team of researchers developed a wireless network capable of seeing through walls, we assumed they were simply looking to cultivate their Alastor Moody-like superpowers. Turns out, they had far more important things on their minds. Patwari and his colleagues at the University of Utah have now penned a new study in which they demonstrate how their motion detecting technology could be used to monitor breathing patterns, as well, potentially enabling doctors to keep closer track of patients with sleep apnea or babies susceptible to sudden infant death syndrome (SIDS). To do this, Patwari reclined on a hospital bed and surrounded himself with 20 wireless transceivers operating at a frequency of 2.4GHz, as pictured above. He then timed his breathing at about 15 breaths per minute (the average rate for a resting adult), which he measured with his array of nodes and a carbon dioxide monitor. The engineer ultimately found that his system's algorithm could accurately measure respiration within 0.4 to 0.2 breaths per minute -- a relatively low error rate, since most monitors round off to the nearest full breath. Patwari says this development could offer a non-invasive and low-cost alternative to the devices used in most hospitals, and hopes to implement his technology into at-home baby monitors, as well. He acknowledges, however, that it will likely take at least five years before any of that happens -- so don't hold your breath. Full PR after the break.
