Arduina Case Study

Good Essays
1.1. BLOCK DIAGRAM

CHAPTER 2

2.1. COMPONENTS
• Arduino – Purpose of processing
• Voice Recognition Module – Voice command identification
• Motor controlling Circuit – Motor Control
• Gear Motors – Direction variation & constant speed running

2.1.1. ARDUINO
Arduino Mega contains everything needed to support the function of the micro controller. It includes digital output/input pins & analog input pins. It connects to a computer through USB cables or power it by a use of AC –DC adapter.

CHARACTERISTICS

Arduino Programming Process:
• Installation of Aduino software
• Selection of the Arduino connection COM port
• Selection of connection type of Arduino board (Arduino Mega or UNO…)
• Develop of the program (
…show more content…
GEAR MOTOR AND CONTROL CIRCUIT

This contains two DC motors with two ger wheels. The gear motors will controll the moving speed of the wheel chair & facilitate the breaking system.
The IC used for the motr driver is L 293D chip which will drive the two DC motors. The micro controller provides the input the motor driver. Using of aminimum 3v Volatge, the motor driver would run the two DC motors. But if it is necessary to use a large motor, L 289IC chip can be used.
The Use of L 293D chip is as follows.

Difference between L293D and L298

The descrioption of L293D:

• Enable pins: This contains pin no.1 & pin no 9. Pin no 1 will activate half-H driver 1 & 2. The pin no 9 will acticate H- bridge 3 & 4.
• VCC1 (Pin 16): 5v supply is connected. Considered as the power supply pin.
• VCC2 (Pin 8): Works as the power supply for the motor system. Needs to provide a positive volatege for the motore to drive. If it is necessary to provide 12v, need to apply the same to the pin. It is also possile to run the motor using batteries as well. 36V is the maximum voltage can be used.
• GND (Pins 4,5,12,13): ommon GND of circuit is

Related Documents

  • Decent Essays

    When a DC voltage is supplied to the coil it induces a current flow through the coil. The electric current and the magnetic field will therefore interact resulting to a force, which pushes the coil to move in its direction. Figure 2: Torque production in a DC motor (Hambley et al., 2008) In a real DC motor, there are many such coils wounded on the rotor, and they will all be pushed in the direction of the force causing their rotation. The current flowing in the coil is directly proportional to the magnetic field produced and sequentially the rate of the motion. In addition, torque is produced concurrently with the movement of the conductors in the magnetic field (Hambley et al., 2008).…

    • 980 Words
    • 4 Pages
    Decent Essays
  • Decent Essays

    The series 78 regulators provide fixed positive regulated voltages in a range varying from 5 to 24 volts. Similarly, the series 79 regulators provide fixed negative regulated voltages in a range varying from 5 to 24 volts. The reason why we use this relay is because the relay driver uln2003 IC is a high voltage and current Darlington array IC, it comprises of 7-open collector Darlington pairs with common emitters. The problem is that it's difficult to make an active low input without a source of power to turn the device off when the input is high or open circuit. The ULN20xx series are basically Darlington arrays so they need base current to turn them on, working the other way around would require a current source to turn them off and there isn't one available without increasing the package…

    • 1077 Words
    • 5 Pages
    Decent Essays
  • Decent Essays

    Both unipolar and bipolar PWM [41] can be employed. FBHSC modulation scheme is the same as the conventional FB inverter, only with addition of the modulation signal to additional switches. The proposed topology has only four conduction states, which are presented in Fig. 3. MOSFET on-resistance Ron is necessary to limit the instantaneous current when two capacitors are connected in parallel (e.g.…

    • 1224 Words
    • 5 Pages
    Decent Essays
  • Decent Essays

    Step 3: Preferred frequency for PLC (Power Line carrier) is 100 KHZ to 140 kHz Step 4: Sub-Station “A” &”B” contains PLC Modem and program Logic controller (Pre-program) unit with GSM connection. Step 5: For Better understanding of Algorithms, we symbolize Power line communication signal as Communication signal and Program Logic Controller Signal as Automation signal. Algorithms Steps (Fig.7): Step 1:Sub-station “A” PLC Modem will send “communication Signal” to “F-PLCCG“ via Transmission line and as soon as signal passes from PLC modem, Program Logic Controller(at substation) sends “Automation signal’ to Program Logic Controller(at F-PLCCG) for activation of Switches (…

    • 1713 Words
    • 7 Pages
    Decent Essays
  • Decent Essays

     Novel 3-Phase Single stage boost inverter: Analysis, Design and Experimentation M K Pathak, Member, Dogga Raveendhra and Aravind Panda Abstract— this paper introduces a novel type of 3-phase single stage dc-ac converter, which is controlled by sliding mode control, offers intrinsic step up abilities. Proposed inverter is designed with lesser number of solid state semiconductor switches and small passive elements. Sliding mode controller (robust controller) is designed to control this power converter in order to achieve high robustness, sustain any kind of line or load variations and achieve good dynamic response. In addition to this the voltage across the each capacitor is less when compared with existed traditional boost inverter topologies,…

    • 1551 Words
    • 7 Pages
    Decent Essays
  • Decent Essays

    ROV Case Study

    • 791 Words
    • 4 Pages

    Signal wires: Smaller signal wires on ROVs conduct signals which govern the polarity of power to the motors by ROV microcontroller and other components. On our ROVs, the 12V DC power is used to turn on or off the motors by double pole / double throw (DPDT) switches on the surface and this 12 VDC is also used to give power to the modules and sensors. iii. Clear pictures of the camera FOV is received on the Camera’s LCD set with the help of coax cable. With this cable, we receive the Camera information on monitor located…

    • 791 Words
    • 4 Pages
    Decent Essays
  • Decent Essays

    Fig. 6.3 Subsystem model of Solar Panel 6.2 BOOST CONVERTER: A boost converter circuit is used to boost the voltage with the inductance value of 0.01H and capacitance value of 2mF. Fig. 6.4 Boost Converter 6.3 MPPT ALGORITHM (P&O): This is the most commonly used algorithm for maximum power point tracking. In this algorithm the controller adjusts the voltage by using the array voltages.…

    • 2440 Words
    • 10 Pages
    Decent Essays
  • Decent Essays

    Simulink Case Study

    • 1176 Words
    • 5 Pages

    During the operation of the test motor, the load motor should be switched off for the entire simulation time or if it is desired to add some disturbances on to the test motor, the load motor could be switched on after sometime to observe the effect of disturbances acting on the test motor. A specific speed is set using “Solldrehzahl” block. The PI Controller has been implemented in the Simulink HIL model for the purpose of controlling speed of the test motor at the specific speed. It is to be noted that the simulation time should be greater than the motor shutdown…

    • 1176 Words
    • 5 Pages
    Decent Essays
  • Decent Essays

    The code loads fcontrol.seq, from Ken Merk's article, to find the port and define the words to control the bits on the port. Several other files from the Forth Scientific Library are loaded as well: fpc2ans.seq loads an ANS-like layer on top of F-PC (a true ANS Forth would not need this), fsl-util.seq defines several utility words that are used throughout the Scientific Library, structs.seq loads the data structure words. The data structure sequence is defined to easily manage the sequence of values as defined in the sequence tables given in section 3.1 above. The sequence structures keep track of where in the sequence we are, so that there is no jump in the sequencing if one were to type 7 NORMAL STEPS, stopped to (say) read a sensor, and then continued on with another 7 NORMAL STEPS. This could be done with global variables instead of a data structure.…

    • 2569 Words
    • 11 Pages
    Decent Essays
  • Decent Essays

    The defrost thermostat is usually wired in series with the element and is an open circuit about 36°- 48° degrees Fahrenheit. Since the temperature is not low enough to close the circuit, it becomes difficult to check the continuity of the thermostat using a multi-meter. You may need a modern thermostat that come with internal bias resistor. This aids in testing both the heater and the thermostat. The wiring diagram that comes with the product will indicate this.…

    • 1042 Words
    • 5 Pages
    Decent Essays