driving a NPN transistor with no base current limit resistor
well not kill at all but one time i make my owm play station control you know buttons and thumb joysticks.. and one wire broke and make a bypass (sorry i don´t know how to say when positive and negative touch together in english) what happend was a lot of current for the arduino regullator and heat so the protection open the circuitbut waiting for 5 hour the protection stay cool and arduino works again. its alive!!!!And now when something doesn´t work i always thing may be is becouse i have broken the arduino the oder time.... but not normally doesn´t work becouse me.
I think I recently fried pin 9 on my R3 by just plugging it directly into a small DC motor and ramping the speed up and down using PWM… does anyone happen to know what exactly I could have damaged, and if there is a way to fix it?