silencer80
Newbie level 3
Dear All
I have a power supplier with two outputs one 12v-2A and the other is 5v-2A
I want to use the 5v for supply the pic with the voltage & the 12v to supply ULN2003 to drive a bipolar stepper motor with rated current .4 A
the question is do I need pull up resistor at the input of the pic
& do I need to do so for the input of the uln2003
& is the uln will be good with the stepper motor or I need Another drive cct
& I have aproblem in programming with interfacing the lCD with pic where I use 4 bit mode & the WR pin is connected to ground when I try to move the cursor to a specific place it goes to it but then the character output becomes wrong
Please Answer me As soon as possiple
thanks alot
I have a power supplier with two outputs one 12v-2A and the other is 5v-2A
I want to use the 5v for supply the pic with the voltage & the 12v to supply ULN2003 to drive a bipolar stepper motor with rated current .4 A
the question is do I need pull up resistor at the input of the pic
& do I need to do so for the input of the uln2003
& is the uln will be good with the stepper motor or I need Another drive cct
& I have aproblem in programming with interfacing the lCD with pic where I use 4 bit mode & the WR pin is connected to ground when I try to move the cursor to a specific place it goes to it but then the character output becomes wrong
Please Answer me As soon as possiple
thanks alot