Engineering Technical Design Jobs

3 were found based on your criteria

  • Fixed-Price – Est. Budget: $250.00 Posted
    I need a color-changing paper test (similar to a litmus test) for testing sugar-alcohol. Something small in size, like a small strip of paper. When breath containing 0.17g any of these sugar alcohols (Xylitol, Mannitol, Sorbitol, Glycerol, Erythritol) is blown on strip of paper, it should change color.
  • Hourly – 1 to 3 months – Less than 10 hrs/week – Posted
    I want to create an app for my smartphone, but I realize now that I need to create a very simple, small bluetooth 4.0 device first. I want it to be small and pocket sized, something that could easily fit on a key ring. It should have only a single button. It should have the ability to be tethered to a smartphone (both an Iphone or an Android) via bluetooth 4.0. When that button is pressed, it sends ...
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