control dc motor using keypad

[alaalwi11]

hi gays,
i want to control in dc motor and h bridge using keypad
if i enter 1 motor move forword
and if ienter 2 the motor go reseve
and press 3 from keypad motor break
i begining my project by control in leds using keypad

char keypadPort at PORTD;
unsigned char keyPress;
unsigned char keyValue;

void main() {
TRISB=0X00;
Keypad_Init();
keyPress = 0x00;
keyValue = 0x00;

do
keyPress = Keypad_Key_Click();
while (keyPress != 0);

switch(keyPress)
{
case 1: keyValue = 0x01; break;
case 2: keyValue = 0x02; break;
case 3: keyValue = 0x03; break;
case 4: keyValue = 0x04; break;
case 5: keyValue = 0x05; break;
case 6: keyValue = 0x06; break;
case 7: keyValue = 0x07; break;
case 8: keyValue = 0x08; break;
case 9: keyValue = 0x09; break;
case 10: keyValue = 0x0A; break;
case 11: keyValue = 0x00; break;
case 12: keyValue = 0x0C; break;
}

PORTB = keyValue;
}I am using MikroC for PIC IDE and the keypad library

 

[upand_at_them]

Does it work? Your TRIS statement declares all PortB pins as outputs.

 

[alaalwi11]

hi,
i go step in my project and i add the second stage witch i changing the leds by
H bridge and DC motor my objective is:
control in position of dc motor using internal sensor -potentiometer-10 k ohm
i want to connecting the 10 k variable resistance mechanically with motor shaft
so when i press key 1 motor start move right side
press key 2 motor move left side 2
press key 3 motor brake
press key 5 motor move and brake at 90 degree for example
but i have two problems
1- the simulation circut can not response for the potensiometer sensor -see attached file-
2- i do not know how divide the vatage come from sensor

void Keypad_Init(void);
char Keypad_Key_Click(void);
char Keypad_Key_Press(void);
unsigned int t;
unsigned short kp;

char keypadPort at PORTB;

void initMain(){
ADCON1 = 0x80; // Configure analog inputs and Vref
TRISA = 0xFF; // PORTA is input

ADCON0 = 0x00;
TRISB = 0xFF;
PORTB = 0x00;
TRISD= 0x00;
PORTD = 0x00;
}

void main() {
initMain();
Keypad_Init();


do {
kp = 0; // Reset key code variable
// Wait for key to be pressed and released
do
kp = Keypad_Key_Click(); // Store key code in kp variable
while (!kp);
// Prepare value for output, transform key to it's ASCII value

switch (kp) {

case 1: PORTD = 0b00000001; break; // 1
case 2: PORTD = 0b00000010; break; // 2
case 3: PORTD = 0b00000011; break; // 3
case 4: PORTD = 0b00000000; break; // A
case 5: {
t = Adc_Read(2); // get ADC value from 2nd channel
if(t >= 0 & t <= 205){
PORTD= 0b00000001;
}
else if (t >= 206 & t <= 410 ){
PORTC= 0b00100011;
} } break;
}
} while(1);
}

thank.........

 

[mac231991]

are you finished with this project? can you help me? im planning to do the same project..