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Posts Tagged ‘TI CC2540’

What is tomographic motion detection?

Sunday, June 23rd, 2013

Recognizing the shortcomings of traditional PIR and ultrasonic sensors used in alarm systems, security researcher Connected Ape decided to explore other options. He discovered this patent for a mesh system of RF nodes, designed to detect the presence of humans based on changes in the baseline signal strength between nodes....

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Posted in security, sensors, wireless | 11 Comments »

Recent Comments

  • Ja: What the keyer do? Sends random morse code or there is some input? If someone can point me to some source to read I would...
  • Sorin: Pleasure of free!
  • hli: Sunday++
  • Max: Jolly good stuff, although the "include 100 W resistors in series with the inputs and outputs" part is quite hilarious until one realizes* they meant...
  • Admir: Me