In this kit we are using RF technology to make a wireless remote through which we can control the DC motor in a definite range without touching for its different operations like direction and speed control. This kit is actually an educational kit. One can study the full operation of DC motor using this board. As it is micro controller based it can be programmable also and one can learn micro controller interfacing with DC motor.
Thus single board serves the purpose of learning motor control as well as learning micro controller programming.There are two sections of this system; one is transmitter end and other one is receiver end. At transmitter end there is an encoder IC which encodes the 4 bit data and transmits it with a wireless device working at 315/434 MHz. At the receiver end RF receiver receives the data with antenna and feeds these data to the decoder IC. The decoder IC decodes the data in 4 bit mode and microcontroller checks the data sequence with these 4 bits. Display unit is an LCD of 16×2 sizes.
It is used for proper user interaction. According to the control inputs pressed on the remote the control parameters that is direction and duty cycle (for speed) is changed and the change is displayed. After this DC motor is commanded with remote unit to operate according to set parameter for direction and speed.
BLOCK DIAGRAM OF Wireless DC motor controller