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It costs $45 (+ Pi Zero W + Camera + SD card = approx. $90 total) and could be left somewhere analyzing video frames and communicating results.

• DerfNet 9y ago
  There are quite a few budget smartphones out there for under $90, without even touching the used market. Could the software run on an Android device?
  • sargun 9y ago
    Like what?
    • DerfNet 9y ago
      https://www.amazon.com/s/?field-keywords=cheap+unlocked+smartphone https://www.amazon.com/s/?field-keywords=cheap+unlocked+smar...
    • Tsagadai 9y ago
      Redmi 4A. There are some very interesting low end phones coming out of China.