ABSTRACT
This project uses an RF Interface to control the speed of a
stepper motor. A Microcontroller based card is developed to decode the control
signals received from the computer via RF. This card is interfaced to the Stepper Motor Controller via Driver. The
control signals from computer after getting decoded are fed to the Stepper
Motor Controller through Driver to produce the necessary control action.
Description:
Here in this project, the
digital data is transmitted to the Micro controller through switches for the
speed selection. Here in the transmitter section, an encoder is used which
helps in encoding the parallel digital value to serial digital
value and RF Transmitter module coverts this into the required carrier wave
signal.
The
RF Receiver fetches the data from the RF Transmitter. When the address and data
pin gets matched the decoder decodes the serial data parallel to the micro
controller. The stepper motor gets control through the micro controller using
the driver IC ULN2003.
Hardware Used:
- 89c51 Micro-controller
- Voltage regulator 7805.
- Diode IN4007
- ULN2003
- Stepper Motor
- RLP-434
- TLP-434
- HT12E
- HT12D
- RF Antenna
