hi, bhatt. my project is about a GSM controlled robotic arm to be mounted on an UNMANNED GROUND VEHICLE. A dtmf decoder is used to produce an interrupt that will trigger the microcontroller to call on a subroutine. i have compiled the program using keil IDE. WHich was successful. the problem is is that when the motors start running the microcontoller gets realy hot. i have used a transistor on pin 15 of dtmf decoder 2n222a. when i interchange the terminals i.e collector goes to ground and emmiter goes to interrupt 1 pin the uc does not get hot. any suggestion anyone?
has anyone attempted such a project , pls your advice will be appreciated.