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Many times we are faced with a heat containing coffee and don't know if the fluid is at the proper temperature and it is impossible to know just by looking at the bottle ended up losing time with a coffee that is cold and we get upset about it.
This however indicates maker by a graph LEDs if the liquid is hot, warm or cold. The LEDs gradually connect the blue (cold) to red (hot), when there is a heating and go off when there is a cooling.
See the Vídeo here!!
This however indicates maker by a graph LEDs if the liquid is hot, warm or cold. The LEDs gradually connect the blue (cold) to red (hot), when there is a heating and go off when there is a cooling.
See the Vídeo here!!
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To develop the project were used:
* 1 temperature sensor found in digital thermometers.
* 1 resistêcia 10K (Brown, Black and Orange).
* 1 arduino.
* 1 thermal.
* wires.
Nine holes were drilled in the side of the thermal with a hot iron of the same diameter of the LEDs.
Wires connected the leds of the pins 5 ao 13
Internal view of wall of LED thermal:
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