Brigosha Technologies Application Notes Driving DC Motor with EAB Introduction A 12V DC geared motor can be used for The H-Bridge Circuit is connected with robotics and other related applications. an external 7V-12V supply. This external This motor is very easy to use and power supply is used for powering the available in standard size. It comes with DC Motor. The rotation of DC Motor in nut and threads on shaft and internal clockwise or anti-clockwise direction is threaded shaft for easily connecting it to regulated the chassis’s clamp and wheel. The EAB programming. The H-Bridge Circuit (Embedded Application Board) can be powers the DC Motor based on user used to drive such DC Motor with the requirement, which can be done with help of a H-Bridge Circuit. firmware control. by EAB through Components The Components required for DC Motor Control with EAB… EAB DC Motor Motor Driver(containing L293D) Power Adapter Wires and Jumpers Email: [email protected], Website: www.brigosha.com Copyright: Brigosha reserves all rights in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Brigosha is the registered trademark of Brigosha Technologies Pvt. Ltd. Specifications within this document are preliminary and subject to change without notification. Document is not intended for publication. Application Notes Motor Driver Board The motor driver board consists of IC we have to use this Driver to increase L293D. It has 4 inputs and 4 outputs. the current by which we can drive the Since, the current from the EAB is not DC Motors. sufficient enough to drive the motors, so Block Diagram Block level representation of the different blocks of the DC Motor Control is shown bellow... EAB Motor Driver Motor Schematic Diagram The Schematic diagram illustrates the circuit connections for designing the application. EAB RC0 RC5 GND IN1 IN2 GND M1 Motor Driver Copyright: Brigosha reserves all rights in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Brigosha is the registered trademark of Brigosha Technologies Pvt. Ltd. Specifications within this document are preliminary and subject to change without notification. Document is not intended for publication. Application Notes Connection Description The RC0 and RC5 pin of EAB is DC Adapter is Connected to the 7-12V connected to the IN1 and IN2 pin of power supply. Jumpers wires are used Motor driver circuit i.e. H-Bridge Circuit. to connect the one end of the Adapter Based on RC0 and RC5 pin status, the and 12V pin and Ground pin of H-Bridge DC Motor will rotate. The two terminals Circuit. The EAB is also connected with of the motor are connected to the O/P1 Ground pin for a common ground in the and O/P2 pin of H-Bridge circuit. The entire circuit connection. Note: Any GPIO pin can be used for driving a motor. Set the particular GPIO pin to output and provide a high/low signal to the pin. Copyright: Brigosha reserves all rights in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Brigosha is the registered trademark of Brigosha Technologies Pvt. Ltd. Specifications within this document are preliminary and subject to change without notification. Document is not intended for publication. Application Notes Code Flow Chart Start Main Function() 1. Define System Clock 2. Initialize library function Set Oscillator Frequency While(1) Configure IO pins (RC0,RC5) Rotate Motor in Clockwise Direction (RC0=1;RC5=0) Delay (5s) Stop the Motor (RC0=0;RC5=0) Delay (2s) Rotate Motor in Anti-Clockwise Direction (RC0=0;RC5=1) Delay (5s) Stop the Motor (RC0=0;RC5=0) Delay (2s) Copyright: Brigosha reserves all rights in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Brigosha is the registered trademark of Brigosha Technologies Pvt. Ltd. Specifications within this document are preliminary and subject to change without notification. Document is not intended for publication. Application Notes Source Code The Source code shown below is the Refer to the EAB User Guide and the firmware EAB Programming Guide for more to microcontroller be of flashed the in the Embedded details on how Application Board. The Source code is program(Source commented for better understanding of microcontroller the user. Application Board. to Code) of Flash(burn) in the Embedded Copyright: Brigosha reserves all rights in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Brigosha is the registered trademark of Brigosha Technologies Pvt. Ltd. Specifications within this document are preliminary and subject to change without notification. Document is not intended for publication. Application Notes Output Applications The Source Code is written to rotate the The controlled rotation of DC Motor motor in clockwise and anti-clockwise has direction. As soon as you switched ON the controlled rotation can be used to: various applications. system, the motor will start rotating in Control Robotic Motion clockwise direction, for 5sec. Then it will Security Gate Systems stop for 2sec and start rotating in anti- Industrial Applications This clockwise direction. Then again stops for 2sec. This process will continue till the system is switched ON. Copyright: Brigosha reserves all rights in the event of industrial property rights. We reserve all rights of disposal such as copying and passing on to third parties. Brigosha is the registered trademark of Brigosha Technologies Pvt. Ltd. Specifications within this document are preliminary and subject to change without notification. Document is not intended for publication.
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