One of [Kale_3D]’s teachers had made an Arduino-powered calculator. It wasn’t robust and didn’t last too long in the classroom environment. After the non-functional calculator sat… ...

– This calculator also has trigonometric, logarithmic and exponential functions. It is hidden but appears on the LCD as function key style by pressing the silver key (or long press of keys).

CONCLUSION In conclusion, the development of a simple calculator using Arduino and a keypad underscores the versatility and accessibility of microcontroller-based systems in practical applications.