DFR0508

FireBeetle Covers-DC Motor & Stepper Driver SKU:DFR0508 Introduction DFRobot FireBeetle series are low power consumption microcontrollers designed for Internet of Things (IoT) development. FireBeetle Covers-DC Motor & Stepper Driver is a DC motor & Stepper Motor driver designed for FireBeetle Microcontrollers. It can control up to four-channels DC motors / two-phase four-wire stepper motors simultaneously. The motor driver cover integrates a STM8 as its coprocessor, controlling the motor speed and direction. It communicates with Microcontroller via IIC port, supports up 1000Hz refresh rate. The assisted processor STM8 controls motors and set the main control free. It effectively reduces the dependence on MCU pin resources and MCU occupancy. Independant motor control make the multi-motors projects more affordable. Cooperate with DFRobot Arduino Motor Library, it will reduce your development difficulty. This stepper motor driver adopts 2x TB6612FNG chips and performs excellent in low power consumption application. The consumption current is only 30mA under static state, and motor driver can provide 1.2A output current at 5V and the peak current is 3.2A@5V. Besides, the motor drive supports 4~12V wide-range power input. FireBeetle Covers-DC Motor & Stepper Driver also provides four independent interfaces to drive servo. So, you can control servo directly. It can be widely applied to intelligent car control and gear control. Features • • • • • Support 4 channels DC motors drive Support 2 channels two-phase four-wire stepper motors drive Support 4 channels servo drive Up to 1000Hz refresh rate Equipped with a STATUS indicator (LED) Specification • • • • • • • • • • Microprocessor: STM8S105 Operating Voltage: 3.3~5V (Connect to FireBeetle VCC Terminal) Operating Voltage: 30mA Motor Drive Chip: TB6612FNG Motor [null Drive] Voltage: 4-12V Output current: 1.2A single-channel continuous drive current Start / Peak Current: 2A (continuous pulse) / 3.2A (single pulse) Communication Port: IIC IIC Address: 0x18 Dimension: 2.28inches x 1.14inches (58mm x 29mm) NOTE: the motor power supply must be independent from logic control power supplies! Function Diagram • • Provide 4-channel servo drive interfaces (D6-D9) Provide 4-channel general motor drive interfaces (M1A/M1B, M2A/M2B, M3A/M3B, M4A/M4B). Fig2: DFR0508 FireBeetle Covers-DC Motor&Stepper Driver Board Overview Fig3: DFR0508 FireBeetle Covers-DC Motor&Stepper Driver STATUS Instruction • • • LED Mode1: Blink (frequency: 30Hz), indicating the motor drive chip is waiting for initialization commands from the host. LED Mode2: Lighting, indicating the motor drive chip works well (control motor operation and wait initialization commands from the host). LED Mode3: OFF, indicating communication error of the motor drive chip. NOTE: NC means Not Connected, VCC means Output Voltage of power supply (5VUSB;3.7V-lithium battery) Tutorial Requirements Take FireBeetle ESP8266 board as an example at here, other Arduino control boards such as arduino UNO, arduino Mega… are also can be used. • • Hardware 1 x ESP32/ESP8266 Board 1 x FireBeetle Covers-DC Motor&Stepper Driver 1 x Hybrid Stepper Motor for 3D Printer (3.5kg) 1 x DC Motor Software Arduino IDE V1.6.x Click to Download Arduino IDE from Arduino® Please download and install FireBeetle Covers-DC Motor&Stepper Driver library files. About Library installation. DC Motor Drive FireBeetle Covers-DC Motor&Stepper Driver can control up to 4-channel DC motors simultaneously. There are 4 marked motor connectors: M1A&M1B, M2A&M2B, M3A&M3B and M4A&M4B. We’ll show you how to control a DC motor with a Firebeetle or Arduino board. Hardware Connection Connect the DC motor to M1A&M1B port, M1A to anode and M1B to cathode. Generally, you need to connect a motor power (4~12V) to Motor PWR port, and connect a logic power (3.3~5V) to VCC & GND pins. If you use FireBeetle, you can plug the cover on the board, and connect the external power (4~12V). DC Motor Drive Wiring Diagram Sample Code /*! * @file Motor.ino * @brief DFRobot's Motor Drive * @n The example demonstrates four groups D.C motors work together at the same time, contains operations such as rotation, speed adjustment, brakes and so on. * @copyright [DFRobot](http://www.dfrobot.com), 2016 * @copyright GNU Lesser General Public License * @author [LiXin] * @version * @date V1.0 2017-7-31 * @https://github.com/DFRobot/DFRobot_MotorStepper */ #include "Arduino.h" #include "Wire.h" #include "DFRobot_MotorStepper.h" /*****************Keywords instruction*****************/ //M1--->motor_Group_1--->[M1A(+),M1B(-)] //M2--->motor_Group_2--->[M2A(+),M1B(-)] //M3--->motor_Group_3--->[M3A(+),M3B(-)] //M4--->motor_Group_4--->[M4A(+),M4B(-)] //CW: rotate in positive direction //CCW: rotate in reverse //A0: Chip Selection Address 1 //A1: Chip Selection Address 2 //A2: Chip Selection Address 3 //A3: Chip Selection Address 4 /*****************Function instruction*****************/ //void start(uint8_t dir) //*This function can be used to start the motor //*dir: Set Orientation CW or CCW //void speed(uint16_t val) //*This function is used to set the motor speed //*val: Set the speed 0motor_Group_3--->[M3A(+),M3B(-)] //M4--->motor_Group_4--->[M4A(+),M4B(-)] //SA--->Stepper_Group_A--->[M1A(A+),M1B(A-),M2A(B+),M2B(B-)] //CW: rotate in positive direction //CCW: rotate in reverse //A0: Chip Selection Address 1 //A1: Chip Selection Address 2 //A2: Chip Selection Address 3 //A3: Chip Selection Address 4 /*****************Function instruction*****************/ //void start(float angle, uint16_t speed, uint8_t dir) //*This function can be used to start the motor //*angle: Set the Angle will not stop spinning) Min:0°(If the Angle is equal to 0°,The motor //*speed: Set the speed Min:8 //*dir: Set Orientation CW or CCW //void getDir() //*This function can get the current rotation direction of the motor DFRobot_Stepper stepperA(SA); DFRobot_Motor motor4(M4); void reverse_4() { motor4.start(!motor4.getDir()); } void reverse_SA() { stepperA.start(0, 12, !stepperA.getDir()); } void setup() { //initialize serial communication at 9600 bits per second: Serial.begin(115200); //join i2c bus (address optional for master) Wire.begin(); //Initialize motor drive chip of stepping motor (Group A) and ¾ group of D. C motor stepperA.init(); motor4.init(); //Set the initial direction motor4.start(CW); stepperA.start(0, 12, CW); delay(1500); } void loop() { static int i=0; //motor4 reverse in every 1.5 seconds reverse_4(); //Stepping motor (Group A) reverse in every 3 seconds if((++i%2) == 0) { reverse_SA(); i=0; } delay(1500); } Program Function: group A stepper motors (M1A(A+), M1B(A-), M2A(B+), M2B(B-)) reverse in every 3s and group 4 DC motor (M4A(+), M4B(-))reverse in every 1.5s. Functions: 1. Create a stepper motor object. 2. DFRobot_Stepper stepperA(SA): SA represents group A stepper motors (M1A (A+), M1B (A-), M2A (B+), M2B(B-)) 3. Create a DC motor object. 4. DFRobot_Motor (M4): M4 represents group 4 DC motors (M4A (+), M4B (-)) 5. Initiate the motor drive, read Product ID and Version ID, and print to the serial port. 6. init() 7. Set the rotation direction of the DC motor and start to rotate. 8. start(dir) se dir=CW: rotate in C.W.(Clockwise) dir=CCW: rotate in anti-clockwi 9. Set angle, speed, direction of the stepper motor rotation and start to rotate. 10. angle: set the rotation resolution. The maximum resolution is hich means the minimum rotate angle is 0.9°. 0.9°, w 11. So that the motor won’t rotate if the resolution set to be 0.1° and on ly rotate to 0.9° if the resolution set to be 1°. 12. ). Min: 0° (if the rotate angel set to be 0, the motor will keep rotating 13. speed: set speed. The speed range is 0~1023. Set it to 0 and the rotat e speed is 0r/min; set it to maximum 1023 and the rotate speed is 200r/min. 14. dir: set direction. dir=CW: rotate in C.W.(Clockwise) ; dir=CCW: rota te in anti-clockwise. 15. The reverse function of group 4 DC motor. 16. reverse_4() 17. The reverse function of group A stepper motor. 18. reverse_SA() Definition of API Function and Macro Macro: Object: M1--->the first group DC motor--->[M1A(+),M1B(-)] M2--->the second group DC motor--->[M2A(+),M1B(-)] M3--->the third group DC motor--->[M3A(+),M3B(-)] M4--->the fourth group DC motor--->[M4A(+),M4B(-)] SA--->the group A stepper motor------>[M1A(A+),M1B(A-),M2A(B+),M2B(B-)] SB--->the group A stepper motor ------>[M3A(A+),M3B(A-),M4A(B+),M4B(B-)] Keyword Expansion: CW: rotate in C.W.(Clockwise) CCW: rotate in counter clockwise CS (Chip Select) Address A0: the first chip select address A1: the second chip select address A2: the third chip select address A3: the fourth chip select address Function: The library used to control DC motor and stepper motor, including C.W rota tion, C.C.W rotation, speed adjustment and stopping. 1. Open drive hardware of DC motor and stepper motor, read Product ID and Version ID. void init(); 2. Shutdown the drive hardware.void shutdown(); 3. Stop the motor rotation. void stop(); 4. Set the DC motor rotation direction and start rotating. void start(uint8_t dir);dir: set direction CW or CCW 5. Set angle, speed, direction of the stepper motor rotation and start rot ating. void start(float angle, uint16_t speed, uint8_t dir);angle: set the rotati on resolution. The maximum resolution is 0.9° which means the minimum rotate angle is 0.9 °. So that the motor won't rotate if the resolution set to be 0.1°and only ro tate to 0.9° if the resolution set to be 1°. Min: 0° (if the rotate angel set to be 0, the motor will keep rotating). speed: set speed. The speed range is 0~1023. Set it to 0 and the rotate sp eed is 0r/min;set it to maximum 1023 and the rotate speed is 200r/min. dir: set direction. dir=CW: rotate in C.W.(Clockwise) ; dir=CCW: rotate in CCW(anti-clockwise) 6. Speed control of DC motor & stepper motor void speed(uint16_t val);val: 0