1) Is it necessary to add 0.1uF to the all the VCCs of atmega? even if we are using 7805 which regulates the signal already.
2) Is it necessary to add RESET circuit on your pcb? (attaching positive voltage to the RESET Pin and all)?
3) Should i put some sort of DIODE on the input (which is 12V) ? i am using like 15A current for the whole circuit which include Pumps,LED strip etc so which diode should i be using if any?
4) Is it okay to use pin 0,1 (RX,TX) or should i leave them and use other for the input or output?
and why are people putting 1k resistor between controller pin and connector?
5) can you please tell me the ways to burn sketch and boot loader into the atmega 2560? i just want names of that process and i will google all of them.
why are people putting 1k resistor between controller pin and connector?
I am making a project which contains atmega 2560 as a controller....