//The defining of analog input pins tested with Arduino UNO and Arduino Nano. if(left_joystick_x_value < 340) y_axis_degree -=7; else if(left_joystick_x_value > 680 ...

This MCU chip Atmega328P is well known and the chip can be pulled out to be used separately on a breadboard. Best to purchase directly from Arduino online store. Beware of fake Arduino boards... The ...