Dc motor speed control using bluetooth.
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stafford michahial
Active In SP

Posts: 1
Joined: Jan 2010
20-01-2010, 02:28 PM

pls send me a working ckt so that v can implement
Active In SP

Posts: 247
Joined: Jan 2010
20-01-2010, 06:40 PM

Wireless Bluetooth Controller for DC Motor
Here this controller has the following functionalityConfusedtart, stop, accelerate, and decelerate through the
push of commands on the computer. The software is a simple one-screen Windows
based application.

-Wireless control via Bluetooth
-Windows based
-Battery operated
-Adjustable Speed
-User has ability to start, stop, accelerate or decelerate the DC motor

The blocks included in the project and implimentation are:
-bluetooth adapter
-USB bluetooth adapter
-PC(user control)
-Control unit(PIC and PWM module)
-Voltage reducer
-12V battery
-DC motor

Here the system accepts user input.The
software was programmed using Visual C++ programming language.A control scheme is
generated to send out a serial control signal that will represent the desired speed of the
motor, in RPMs. The user selected speed, is outputted to the Bluetooth via a serial port. a - character is appended to the
beginning of the control string for CCW operation. USB Bluetooth Adapter (SKU#: RF-BT-USB) is used To bridge the connection
between the PIC and the PC. BlueSMIRF Bluetooth Module (WML-C40) is used at the other end of the
Bluetooth wireless connection for receiving the wireless signals from the
USB transmitter and forwarding to the control unit. Microcontroller (PIC16F877) makes up the control unit alongwith a PW modulator. The PWMs are
used to control the duty cycle of the motor by regulating the power output. Once the
control signal from the PC reaches the PIC through the Bluetooth transmitters, its values
are interpreted in the program and generate the necessary outputs.PIC programming is done in C. 12 V Battery (BP5-12-T2) is the power supply for the circuit. 5 V Voltage Regulators (LM7805A) to step down the 12V to 5V. H-Bridge (NJM2670D2-ND) allows to select the direction of rotatiojn of the motor awa atopping it. It
consists of four MOSFET transistors operating as switches. 12 Vdc Motor (GM9434G807) is the DC motor which is controlled.

A full report can be downloaded from:
courses.ece.illinois.edu/ece445/project and implimentations/spring2007/project and implimentation5_final_paper.pdf

The circuits and other details for the same are available at:
8051project and implimentationsforum-t20953.html
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
seminar addict
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Posts: 6,592
Joined: Jul 2011
30-01-2012, 11:50 AM

to get information about the topic speed control of dc servo motor full report, ppt and related topic refer the link bellow





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