I am really confused about this capacitors. I read somewhere that all digital circuits should have one 0.1uF ceramic capacitor, for each pair of VCC-GND connectors, but i'm not sure i understood. My project consists of Atmega16 mc, LCD, couple of diodes and sensors, all of those are connected to VCC. Do i need capacitor for each component?
Also I read that those capacitors are usually drawn in groups on the schematic, but on board they are as close as posible to power suplay. Im not sure how to do it, how many capacitors do i need and how can i represent it on schematic.