AbstractsThis project aims to design and build machines for banknote Exchange, a coin with the automatic method, 30 cm in width and 60 cm in height by 12 volt DC motor used as pusher coin come out. Microcontroller system control to test the efficiency of the exchange of banknotes, as the coins with banknote automation with each 500, 100, 50 and 20. Baht coin can be exchanged for 10 and 5, respectively.
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