DESIGN OF MONITORING SYSTEM FOR BANKNOTE PIGGY BANK BASED ON ANDROID
Keywords:
Piggy Bank, TCS 3200 Color Sensor, NodeMCU ESP8266Abstract
This research aims to design and build an Android-based banknote monitoring
system utilizing Internet of Things (IoT) technology. This system uses TCS3200
color sensor to detect the nominal value of banknotes based on RGB (Red, Green,
Blue) values, NodeMCU ESP8266 as the main microcontroller, and 16x2 LCD to
display the nominal information. The detected banknote data is sent to the Android
application in real-time, allowing users to monitor the balance, view the savings
history, and control the opening and closing of the savings box through a solenoid
mechanism. System testing showed a 98% success rate in detecting banknotes of
various denominations, displaying information on the LCD, and synchronizing data
with the Android application. This system is expected to improve children's
financial literacy by providing a more interactive, efficient, and safe savings
experience.
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