Oct 24, 2015 · 16×2 LCD is named so because it has 16 Columns and 2 Rows. There are a lot of combinations available like, 8×1, 8×2, 10×2, 16×1, etc. But the most used one is the 16*2 LCD, so explained here with pinout and description.

Homework #5 (Power Supply) Design a linear power supply that will provide 5V at up to 0.75A from a 120VAC input (wall power). Use the LM7805 (TO-220 package) voltage regulator in your design (link to datasheet below).