ot possible since I will have to send data among them and I THINK ( ie. not tested and verified) they will run out of memory and pins.Arduino Mega 2560 R3 is the solution to the problem but as I have mentioned I need to cut my budget.The bare-bones micro-controller of Mega will work perfectly but I am unable to find anybody selling it .It will be helpful for me if somebody knows any place/store where it