I need a fully-functioning prototype of a portable lunchbox that can actively heat food up to 60 °C and cool it down to 4 °C at the press of a touchscreen control. The enclosure should be molded primarily... (Budget: $30 - $250 USD, Jobs: Arduino, CAD/CAM, Electronics, Embedded Systems, Microcontroller, PCB Layout, Product Development, Prototyping)
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