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dc motor control angular position(PIC16f877)

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nuarizzah

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optical encoders with pic16f877a

Currently I’m doing a project by using a PIC microcontroller 16F877a series to control a DC motor (angular position). the shaft of motor is connected to potentiometer as position sensor. the input is entered by user (keypad). Can anyone help me on this?
 

intelligent remote positioner (motor control) pic

Pls specify your problem. You do not know how your keypad is going to interface or write the program or don not know what is going to do with the potential meter output?
 

pic16f877 control servo motor

i m searching for it too
 

control angular

See the microchip web site under application notes.

hxxp://www.microchip.com/stellent/idcplg/function/?IdcService=SS_GET_PAGE&nodeId=1469&ln=en

The have 9 app notes on servo brush motor control

AN531 Intelligent Remote Positioner
AN532 Servo Control of a DC Brush Motor
AN600 Air Flow Control Using Fuzzy Logic
AN696 PIC18CXXX/PIC16CXXX DC Servomotor
AN718 Brush-DC Servomotor Implementation using PIC17C756A
AN892 Fail-Safe Monitoring and Clock Frequency Switching Using the PIC16F684
AN893 Low-Cost Bidirectional Brushed DC Motor Control Using the PIC16F684
AN894 Motor Control Sensor Feedback Circuits
AN898 Determining MOSFET Driver Needs for Motor Drive Applications


-servopump
 

positioner dc motor

actually i have problem with programming part...i'm using c language (micro C compiler..etc...)... i think i'm stuck at the motor feedback part...does anyone know any sites that could help me with this problems...or any ideas from any members...anyway...everyone...thank you for helping me...:D:|
 

pic16f877 low cost motor control project

nuarizzah said:
Currently I’m doing a project by using a PIC microcontroller 16F877a series to control a DC motor (angular position). the shaft of motor is connected to potentiometer as position sensor. the input is entered by user (keypad). Can anyone help me on this?
Click to expand...


It could be wrong from the beginning. Ask yourself to the following questions:

1. estimate the speed of the motor
2. see the lifetime of the potmeter (max numbers of mechanical turns)
3. corelate 1 with 2 and see if it's feasable

There are some 270 degree resistive encoders manufactured for this sort of job, or optical encoders. It's not clear if your motor will turn completely (n turns of 360 degress or less than 360 degrees).
A DC motor may have inertia, depends on the mechanical load. Think to this one too.

success,
 

are you finished with this project? i've been planning to work on this project too. can you help me? i am new in mcu programming.
 

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