my circuit

[srimannarayanakarthik]

hi everyone
i am a beginner of microcontrollers and this is my first project.i made a circuit of a navigating robot.i am attaching the circuit below.please correct if there are any mistakes and do tell me whether its gonna work or nor.if not why?
The 1st motor is a stepper motor used for the linear motion of robot and the second is a micro stepping motor used for the rotation of direction
this is connect to the PC by serial port and the signals from serial port are used for controlling the robot

 

[amindzo]

Hi,
i haven't work with 8051 but You will have to use a MAX232 level converter because the serial port on the pc uses +12V/-12V and a 8051 uses 5V/0V

 

[William At MyBlueRoom]

The LT1130 is an RS232 level converter.

 

[srimannarayanakarthik]

according to what i know LT1130 converts the 12v DC to 5 v.so there is no use of max232. i just need whether the 2 stepper motors are connected properly and will there be any problem to manage two motors with same microcontroller