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in one of my previous Instructable tutorial, we learnt how to interface an OLED with Arduino and basics of it, now its time to step up the game and make some project based on OLED, so in this tutorial, we will learn how to make a simple yet slinky calculator based on Arduino!


OLED Display
Arduino Keypad
3.7v, 200mAH Lithium Polymer Battery
B. Tools

Soldering Iron
hot glue gun
Soldering Wire
Wire Stripper
C. Software

1. Arduino IDE

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