Pico_Calculator
Simple calculator based on a Raspberry Pi Pico, SSD1306 display and a matrix keyboard. Written in Micropython.
It can peform simple calculations eg +,-,* or /, as well as some maths functions eg log, ^X etc
Schematic
Copy https://github.com/stlehmann/micropython-ssd1306/blob/master/ssd1306.py to the pico
Copy main.py to the pico
To carry out a simple addition:
Press 1.234, Press +, Press 2.345, Press =
To clear a number, in case of an error, press '.' for > 1 second and release.
To clear the screen press '.' for > 3 seconds and release.
To carry out a maths function, eg log10(1.234):
Press 1.234, Press and hold '2' for > 1 second and release (see table on schematic for other maths functions) the result will be shown 0.09131514
To clear press '.' for > 1 second and release or you can do further calculations on the result
Pressing '=' BEFORE entering a number will make it -ve
Holding down ^X will increment the power eg 3 seconds will give ^3
lt will work with one of these https://thepihut.com/products/sealed-membrane-4-4-button-pad-with-sticker
ensure you wire it correctly!