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      Gear Stepper Motor Driver Pack The Gear Stepper Motor Driver Pack includes a stepper motor and a motor drive board. It's a four-phase eight-stepping stepper motor, and you can easily control this stepper motor via the drive board. You can use this pack for position control. Features    Low noise Large torque Built-in gearbox Specification Item Value Operating Voltage 5V Phase 4 Reduction ratio 1/64 Step Angle 5.625°/64 Diameter 28mm / Nema 11     Item Idle In-traction Frequency >500HZ Idle Out-traction Frequency >1000HZ Resistance 21±7% Noise ≤40dB Drive mode four-phase eight-stepping Typical applications     Value Desktop printers Plotters 3d printers CNC milling machines Hardware Overview Pin Out     Mechanical drawing you can click it to see the original picture. Platforms Supported Arduino   Raspberry Pi BeagleBone Wio LinkIt ONE   Caution The platforms mentioned above as supported is/are an indication of the module's hardware or theoritical compatibility. We only provide software library or code examples for Arduino platform in most cases. It is not possible to provide software library / demo code for all possible MCU platforms. Hence, users have to write their own software library. Getting Started Play With Arduino Hardware Materials required Seeeduino V4.2 Gear Stepper Motor Driver Pack Female-Male jumpers Note 1 Please plug the USB cable gently, otherwise you may damage the port. Please use the USB cable with 4 wires inside, the 2 wires cable can't transfer data. If you are not sure about the wire you have, you can click here to buy 2 To make the Gear-Stepper-Motor-Driver-Pack work with your Arduino, several Female-Male jumpers is also required. In case you do not have jumpers, you can click here to buy.  Step 1. Connect the Gear Stepper Motor Driver Board to your seeedunio via jumppers. Seeeduino Gear Stepper Motor Driver Board Digital Pin 8 IN1 Digital Pin 9 IN2 Digital Pin 10 IN3 Digital Pin 11 IN4 GND GND     Seeeduino Gear Stepper Motor Driver Board VCC_5V VCC VCC_5V VM Tip You can connect the VM pin to VCC_5V or you can just do not use it as long as you choose the VCC in the switch.   Step 2. Plug the stepper motor into the Gear Stepper Motor Driver Board. Step 3. Connect Seeeduino to PC via a USB cable. Software Attention If this is the first time you work with Arduino, we strongly recommend you to see Getting Started with Arduino before the start.  Step 1. Click the icon 1 int 2 int 3 int 4 int 5 int   in upper right corner of the code block to copy the following code into a new sketch in the Arduino IDE. pwm1=9; pwm2=10; ctr_a =9; ctr_b =8; ctr_c =11;   6 int ctr_d =10; 7 int sd =6; 8 int i=0; 9 int t=1500; 10 11 void setup() 12 { 13 //pinMode(sd,OUTPUT); 14 //pinMode(pwm1,OUTPUT); 15 //pinMode(pwm2,OUTPUT); 16 pinMode(ctr_a,OUTPUT); 17 pinMode(ctr_b,OUTPUT); 18 pinMode(ctr_c,OUTPUT); 19 pinMode(ctr_d,OUTPUT); 20 delay(1); 21 //digitalWrite(sd,HIGH); 22 //digitalWrite(pwm1,HIGH); 23 //digitalWrite(pwm2,HIGH); 24 // digitalWrite(ctr_a,LOW); 25 // digitalWrite(ctr_b,LOW); 26 // digitalWrite(ctr_c,LOW); 27 // digitalWrite(ctr_d,LOW); 28 29 } 30 31 32 void loop () 33 { 34 // for(i=1500;i>=1;i--) 35 // { 36 // digitalWrite(ctr_a,HIGH);//A 37 // digitalWrite(ctr_b,LOW); 38 // digitalWrite(ctr_c,LOW); 39 // digitalWrite(ctr_d,LOW); 40 // delay(t); 41 // digitalWrite(ctr_a,HIGH); 42 // digitalWrite(ctr_b,HIGH);//AB 43 // digitalWrite(ctr_c,LOW); 44 // digitalWrite(ctr_d,LOW); 45 // delay(t); 46 // digitalWrite(ctr_a,LOW); 47 // digitalWrite(ctr_b,HIGH);//B 48 // digitalWrite(ctr_c,LOW); 49 // digitalWrite(ctr_d,LOW); 50 // delay(t); 51 // digitalWrite(ctr_a,LOW); 52 // digitalWrite(ctr_b,HIGH); 53 // digitalWrite(ctr_c,HIGH);//BC 54 // digitalWrite(ctr_d,LOW); 55 // delay(t); 56 // digitalWrite(ctr_a,LOW); 57 // digitalWrite(ctr_b,LOW); 58 // digitalWrite(ctr_c,HIGH);//C 59 // digitalWrite(ctr_d,LOW); 60 // delay(t); 61 // digitalWrite(ctr_a,LOW); 62 // digitalWrite(ctr_b,LOW);     63 // digitalWrite(ctr_c,HIGH);//CD 64 // digitalWrite(ctr_d,HIGH); 65 // delay(t); 66 // digitalWrite(ctr_a,LOW); 67 // digitalWrite(ctr_b,LOW); 68 // digitalWrite(ctr_c,LOW);//D 69 // digitalWrite(ctr_d,HIGH); 70 // delay(t); 71 // digitalWrite(ctr_a,HIGH); 72 // digitalWrite(ctr_b,LOW); 73 // digitalWrite(ctr_c,LOW);//DA 74 // digitalWrite(ctr_d,HIGH); 75 // delay(t); 76 // 77 // } 78 // digitalWrite(ctr_a,LOW); 79 // digitalWrite(ctr_b,LOW); 80 // digitalWrite(ctr_c,LOW); 81 // digitalWrite(ctr_d,LOW); 82 // 83 // 84 // 85 // for(i=1500;i>=1;i--) 86 // { 87 // 88 // digitalWrite(ctr_d,HIGH);//D 89 // delay(t); 90 // digitalWrite(ctr_c,HIGH);//DC 91 // delay(t); 92 // digitalWrite(ctr_d,LOW);//C 93 // delay(t); 94 // digitalWrite(ctr_b,HIGH);//CB 95 // delay(t); 96 // digitalWrite(ctr_c,LOW);//B 97 // delay(t); 98 // digitalWrite(ctr_a,HIGH);//BA 99 // delay(t); 100 // digitalWrite(ctr_b,LOW);//A 101 // delay(t); 102 // digitalWrite(ctr_d,HIGH);//AD 103 // delay(t); 104 // digitalWrite(ctr_a,LOW); 105 // digitalWrite(ctr_d,LOW); 106 // } 107 108 for(i=1500;i>=1;i--) 109 { 110 digitalWrite(ctr_a,LOW);//A 111 digitalWrite(ctr_b,HIGH); 112 digitalWrite(ctr_c,HIGH); 113 digitalWrite(ctr_d,HIGH); 114 delayMicroseconds(t); 115 digitalWrite(ctr_a,LOW); 116 digitalWrite(ctr_b,LOW);//AB 117 digitalWrite(ctr_c,HIGH); 118 digitalWrite(ctr_d,HIGH); 119 delayMicroseconds(t);     120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 } 152 // 153 // 154 // 155 // 156 // 157 158 159 // 160 // { 161 // 162 // 163 // 164 // 165 // 166 // 167 // 168 // 169 // 170 // 171 // 172 // 173 // 174 // 175 // 176 //   digitalWrite(ctr_a,HIGH); digitalWrite(ctr_b,LOW);//B digitalWrite(ctr_c,HIGH); digitalWrite(ctr_d,HIGH); delayMicroseconds(t); digitalWrite(ctr_a,HIGH); digitalWrite(ctr_b,LOW); digitalWrite(ctr_c,LOW);//BC digitalWrite(ctr_d,HIGH); delayMicroseconds(t); digitalWrite(ctr_a,HIGH); digitalWrite(ctr_b,HIGH); digitalWrite(ctr_c,LOW);//C digitalWrite(ctr_d,HIGH); delayMicroseconds(t); digitalWrite(ctr_a,HIGH); digitalWrite(ctr_b,HIGH); digitalWrite(ctr_c,LOW);//CD digitalWrite(ctr_d,LOW); delayMicroseconds(t); digitalWrite(ctr_a,HIGH); digitalWrite(ctr_b,HIGH); digitalWrite(ctr_c,HIGH);//D digitalWrite(ctr_d,LOW); delayMicroseconds(t); digitalWrite(ctr_a,LOW); digitalWrite(ctr_b,HIGH); digitalWrite(ctr_c,HIGH);//DA digitalWrite(ctr_d,LOW); delayMicroseconds(t); digitalWrite(ctr_a,HIGH); digitalWrite(ctr_b,HIGH); digitalWrite(ctr_c,HIGH); digitalWrite(ctr_d,HIGH); for(i=1500;i>=1;i--) digitalWrite(ctr_d,HIGH);//D delay(t); digitalWrite(ctr_c,HIGH);//DC delay(t); digitalWrite(ctr_d,LOW);//C delay(t); digitalWrite(ctr_b,HIGH);//CB delay(t); digitalWrite(ctr_c,LOW);//B delay(t); digitalWrite(ctr_a,HIGH);//BA delay(t); digitalWrite(ctr_b,LOW);//A delay(t); digitalWrite(ctr_d,HIGH);//AD   177 // 178 // 179 // 180 // 181 182 183 } delay(t); digitalWrite(ctr_a,LOW); digitalWrite(ctr_d,LOW); }    Step 2. Upload the demo. If you do not know how to upload the code, please check How to upload code. Success If every thing goes well, you can see the motor run: Tech Support Please do not hesitate to submit the issue into our forum                                    http://wiki.seeedstudio.com/Gear_Stepper_Motor_Driver_Pack/12‐4‐18