5V Stepper Motor with ULN2003 Driver Board Set

5V Stepper Motor with ULN2003 Driver Board Set.

This ULN2003 Driver Board is designed to operate small stepper motors at voltages between 5V and 12V, at a maximum current of 500mA. It is Arduino compatible and is typically used with Arduino UNO boards, but often requires a separate power supply to avoid damaging the Arduino board.

This set is a perfect choice for building your own 3D printer or CNC machine. The Driver board could function as a driver for other devices as well, as listed below in the " ULN2003 Chip Features". It is pretty self-explanatory that buying this set would be a very wise choice.

5V Stepper Motor Specification:

Rated voltage: 5VDC
Number of Phase 4
Speed Variation
Ratio 1/64
Stride Angle 5.625 /64
Frequency 100Hz
DC resistance 507%(25) Idle
In-traction Frequency > 600Hz Idle
Out-traction Frequency > 1000Hz In-traction
Torque >34.3mN.m(120Hz)
Self-positioning Torque >34.3mN.m
Friction torque 600-1200 gf.cm
Pull in torque 300 gf. cm
Insulated resistance >10M(500V)
Insulated electricity power 600VAC/1mA/1s
Insulation grade A
The rise in Temperature <40K(120Hz)
Noise <35dB(120Hz,No load,10cm)
Model 28BYJ-48 5V
Data on Motor: PDF stepper1

ULN2003 Driver Board Set Feature:

500-mA-Rated Collector Current (Single Output)
High-Voltage Outputs: 50 V
Output Clamp Diodes
Inputs Compatible With Various Types of Logic
Relay-Driver Applications 2 Applications
Relay Drivers
Stepper and DC Brushed Motor Drivers
Lamp Drivers
Display Drivers (LED and Gas Discharge)
Line Drivers
Logic Buffers

ULN2003 DataSheet

Code

//declare variables for the motor pinsint motorPin1 = 8; //pin 1N1int motorPin2 = 9; //pin 1N2int motorPin3 = 10; //pin 1N3int motorPin4 = 11 //pin 1N4int motorSpeed = 1200; //variable to set stepper speedint count = 0; // count of steps madeint countsperrev = 512; // number of steps per full revolutionint lookup[8] = {B01000, B01100, B00100, B00110, B00010, B00011, B00001, B01001}; //////////////////////////////////////////////////////////////////////////////void setup() { //declare the motor pins as outputs pinMode(motorPin1, OUTPUT); pinMode(motorPin2, OUTPUT); pinMode(motorPin3, OUTPUT); pinMode(motorPin4, OUTPUT); Serial.begin(9600);} //////////////////////////////////////////////////////////////////////////////void loop(){ if(count < countsperrev ) clockwise(); else if (count == countsperrev * 2) count = 0; else anticlockwise(); count++;} ////////////////////////////////////////////////////////////////////////////////set pins to ULN2003 high in sequence from 1 to 4//delay "motorSpeed" between each pin setting (to determine speed)void anticlockwise(){ for(int i = 0; i < 8; i++) { setOutput(i); delayMicroseconds(motorSpeed); }} void clockwise(){ for(int i = 7; i >= 0; i--) { setOutput(i); delayMicroseconds(motorSpeed); }} void setOutput(int out){ digitalWrite(motorPin1, bitRead(lookup[out], 0)); digitalWrite(motorPin2, bitRead(lookup[out], 1)); digitalWrite(motorPin3, bitRead(lookup[out], 2)); digitalWrite(motorPin4, bitRead(lookup[out], 3));}