Let's Make Robots!

9V battery

Battery help

 

Hi 

What is the difference of a 9v battery and a battery holder that can hold 6 aa batterys 3 on each side? (it comes out to have 9v) Which one is better for the arduino or any other microcontrollers?? 

 

run into things
Another Junkbot, this time from a dead PS2 mouse. Knocked out in a couple hours from parts that were already on hand. Its main purpose in life is to entertain my … Read more

9V battery keep blowing up!!!

Ok I have a problem that just does not make sense but since I am a newbie I thought I would throw this up and see if I can get some pointers.