We are tryin to make a wireless remote controlled car. the components we are using are: AT89C51RD2 ULN2003 Bipolar stepper motor RF TX-RX 433 MHz HT12E encoder HT12D decoder We are trying to interface bipolar stepper motor with AT89C51RD2 micro controller. The simulators we are using are Keil compiler and Proteus 6.0 Please help wid the code and circuit diagrams for the entire module.