Modified 8 years, 8 months ago. Viewed 2k times. 1. I was trying to control a stepper motor using ATmega32. i am using AVR studio 4.But, it is not working perfectly at simulation at Proteus. The 4 input signals for motor driver pin IN1, IN2, IN3 and IN4 are blinking without any sequence. My code is following -. stepper motor interfacing with 8051 microcontroller, 15 atmega32 assembly tutorial stepper motor and lm293d interfacing with avr atmega32 , example stepper Step 2 Attach the servo horns to the servo motor as seen in the image below. The function to move the stepper by some angle.Here we can also control the direction and RPM. Basically, the motor takes 512 sequences to complete 1 revolution. That means 512 sequences for 360 degrees. This. Interfacing of Atmega32 with l297,l298 and stepper motor. I am currently working on solar tracking system. I am facing some problem in it. I want to interface stepper motor but it is not rotating (My stepper motor's specification is, unipolar stepper motor, Torque 3.17 kg-cm, currentphase 0.4 Amps,. electronSome is a technical organisation which aims to provide technical support for electronics engineers through projects, circuits, tutorials etc. . L293D can provide up to 600mA current, in the voltage raging from 4.5 to 36v. L293 is a similar IC which can provide up to 1A in the same voltage range. L293 or L293D contains four Half H Bridge drivers and are enabled in pairs. Input EN1 is used to enable pair 1 (IN1-OUT1, IN2-OUT2) and input EN2 is used to enable pair 2 (IN3-OUT3, IN4-OUT4). It can drive one relay and four DC motors or one stepper motor at a time. The motor relay board eases the task of interfacing external motor and AC devices with the ATmega32 microcontroller. It has ULN2003 drivers for high current applications like motor driving and relay driving circuits for AC device interfacing.. Interfacing Servo Motor with Atmega32 Microcontroller Circuit Diagram. 8 MHz Crystal is used to provide the required clock for Atmega32 Microcontroller and 22pF capacitors are used to stabilize the operation of the crystal. 10K resistor and 10F capacitor is used to provide the required Power On Reset (POR) to the microcontroller.. Problem with stepper motor not landing on same spot. 1. Interfacing 16x2 LCD with Atmega 32. 0. Control of 12V stepper motor using L293D dual H-bridge. 0. Interfacing with (Two) Full-Bridge PWM Motor Drivers to Control a Stepper Motor. 0. Interfacing Atmega 2560 with 74ls240 inverting buffer.