Homework Statement
A conductor (wire) is folded into a square loop with each side having a length of a. Total charge of Q is transferred onto the conductor. Describe the line charge density of the square loop in equilibrium. (If I am interpreting this correctly what is required is...
An idea worth considering perhaps is using an 8-bit serial-In parallel-out register like 74HC595 for example (sophiecentaur suggested something similar if I am not mistaken). You will only need three pins on your arduino: data, clock and a signal to transfer the data you shifted into the...