The objective of this project is Angular Control of 2- phase Stepper Motor by 8051. This device connects to a stepper motor and has a simple keypad and a 7- segment LED display. When the desired angle has been entered, the device controls the motor to rotate by the desired angle.

I want some information about Angular Control of Stepper Motor by 8051.

Can you give me a schematic circuit for 2-phase stepping motor DRIVE?

 

 

anyone can send the schematic circuit the part of 8051 to ULN2003 to motor?

 

There's not much to send, it really couldn't be much simpler - a unipole stepper has either five or six wires, the four single connection go to the outputs on the ULN2003, the remaining one or two (depending on type) go to the +ve supply rail for the motor. The common diode connection on the ULN also goes to the same motor supply point.

You then simply connect for output pins from the CPU to the four inputs of the ULN chip.

You might find this page helpful http://www.winpicprog.co.uk/pic_tuto...pper_board.htm, although it uses discrete transistors it's pretty well identical to the ULN2003.

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