Carlos Sell
Program using Touch Sensor and PWM function. This code set a value of brightness in RGB led using Touch Sensor like a slider. The begining of touch is used to select a color. The end of touch is used to select an effect.
Dependencies: MMA8451Q TSI mbed
Fork of
FRDM_TSI
by 
Subhrajit Mitra
main.cpp
- Committer:
- carlossell
- Date:
- 2013-09-12
- Revision:
- 6:343ba87cc6cf
- Parent:
- 5:7f7b888f616b
File content as of revision 6:343ba87cc6cf:
#include "mbed.h"
#include "TSISensor.h"
//#include "MMA8451Q.h"
//#define MMA8451_I2C_ADDRESS (0x1d<<1)
int main(void)
{
// MMA8451Q acc(PTE25, PTE24, MMA8451_I2C_ADDRESS);
PwmOut led1(LED_BLUE);
PwmOut led2(LED_GREEN);
PwmOut led3(LED_RED);
float tp = 0;
//float tp_old = 0;
float valor_ledR, valor_ledG, valor_ledB = 1.0;
float valor_inicial, valor_final = 0.0;
float offset = 0.0;
float aux = 0.0;
unsigned char led_atual = 0;
unsigned char ajustando = 0;
unsigned char efeito = 0;
unsigned char blink = 0;
TSISensor tsi; //inicializa rotinas do sensor de toque
led1 = 1.0; //desliga leds
led2 = 1.0;
led3 = 1.0;
valor_ledB = led1;
valor_ledG = led2;
valor_ledR = led3;
valor_inicial = 0.0;
valor_final = 0.0;
efeito = 0;
while (1)
{
//tp = (tsi.readPercentage()>0)?tsi.readPercentage():tp;
tp = tsi.readDistance(); //take actual value of touch sensor
if (tp == 0) //there is no touch
{
if(!ajustando)
{
valor_inicial = 0.0;
valor_final = 0.0;
}
ajustando = 0; //not adjusting
if(led_atual) //there is any color selected?
{
if(!efeito)
{
led3 = valor_ledR; //adjust red led
led2 = valor_ledG; //adjust green led
led1 = valor_ledB; //adjust blue led
}
}
else
{
led3 = led2 = led1 = 1.0; //turn off all colors
}
}
if(efeito)
{
if(led_atual)
{
if(efeito == 1)
{
blink = ~blink;
if(blink)
{
led3 = valor_ledR; //adjust red led
led2 = valor_ledG; //adjust green led
led1 = valor_ledB; //adjust blue led
}
else
{
led3 = 1.0; //adjust red led
led2 = 1.0; //adjust green led
led1 = 1.0; //adjust blue led
}
}
if(efeito == 2)
{
offset = offset + 0.02;
if(offset > 1.0)
{
offset = 0.0;
}
if(valor_ledB < 1.0)
{
led1 = offset;
}
if(valor_ledG < 1.0)
{
led2 = offset;
}
if(valor_ledR < 1.0)
{
led3 = offset;
}
}
if(efeito == 3)
{
offset = offset - 0.02;
if(offset < 0.0)
{
offset = 1.0;
}
if(valor_ledB < 1.0)
{
led1 = offset;
}
if(valor_ledG < 1.0)
{
led2 = offset;
}
if(valor_ledR < 1.0)
{
led3 = offset;
}
}
if(efeito == 4)
{
offset = offset - 0.01;
if(offset < 0.0)
{
offset = 1.0;
}
led1 = offset;
aux = 1 - offset;
if(aux < 0.0)
{
aux = 0.0;
}
led2 = aux;
aux = offset * 2;
if(aux > 1.0)
{
aux = 0.0;
}
led3 = aux;
}
}
//wait(0.1);
}
if((tp > 0) & (tp < 5)) //the colors are select at begin of touch sensor
{
if(!ajustando) //the adjust function is not activeted
{
led1 = 1.0; //turn off all colors
led2 = 1.0;
led3 = 1.0;
led_atual++; //increment actual color selector
if(led_atual > 7)
{
led_atual = 0; //turn off leds
}
if(led_atual == 1) //selected color is blue
{
led1 = valor_ledB = 0.0; //turn on blue led
led2 = valor_ledG = 1.0;
led3 = valor_ledR = 1.0;
}
if(led_atual == 2) //selected color is green
{
led1 = valor_ledB = 1.0;
led2 = valor_ledG = 0.0; //turn on green led
led3 = valor_ledR = 1.0;
}
if(led_atual == 3) //selected color is red
{
led1 = valor_ledB = 1.0;
led2 = valor_ledG = 1.0;
led3 = valor_ledR = 0.0; //turn on red led
}
if(led_atual == 4)
{
led1 = valor_ledB = 0.0; //turn on blue led and
led2 = valor_ledG = 0.0; //turn on green led
led3 = valor_ledR = 1.0;
}
if(led_atual == 5)
{
led1 = valor_ledB = 0.0; //turn on blue led and
led2 = valor_ledG = 1.0;
led3 = valor_ledR = 0.0; //turn on red led
}
if(led_atual == 6)
{
led1 = valor_ledB = 1.0;
led2 = valor_ledG = 0.0; //turn on green led
led3 = valor_ledR = 0.0; //turn on red led
}
if(led_atual == 7) // select color is white
{
led1 = valor_ledB = 0.0; //turn on blue color
led2 = valor_ledG = 0.0; //turn on green color
led3 = valor_ledR = 0.0; //turn on red led
}
wait(0.5); //show selected led to user
}
}
if (tp > 35) //superior side
{
if(!ajustando)
{
efeito++;
if(efeito > 4)
{
efeito = 0;
}
}
//wait(0.5);
}
if((tp > 5)) //set the brightness of select color
{
if(!ajustando)
{
valor_inicial = tp;
}
ajustando = 1; //adjusting is true
valor_final = tp;
//led1 = 1.0; //take off all colors
//led2 = 1.0;
//led3 = 1.0;
if(led_atual == 1) //selected color is blue
{
valor_ledB = valor_ledB + (valor_inicial - valor_final)/200;
if(valor_ledB < 0.0)
{
valor_ledB = 0.0;
}
if(valor_ledB > 1.0)
{
valor_ledB = 1.0;
}
//valor_ledB = (40.0 - tp)/40.0;
led1 = valor_ledB; //put new value on blue led
led2 = valor_ledG = 1.0; //turn off
led3 = valor_ledR = 1.0; //turn off
}
if(led_atual == 2) //selected color is green
{
//valor_ledG = (40.0 - tp)/40.0;
valor_ledG = valor_ledG + (valor_inicial - valor_final)/200;
if(valor_ledG < 0.0)
{
valor_ledG = 0.0;
}
if(valor_ledG > 1.0)
{
valor_ledG = 1.0;
}
led1 = valor_ledB = 1.0; //turn off
led2 = valor_ledG; //put new value on green led
led3 = valor_ledR = 1.0; //turn off
}
if(led_atual == 3) //selected color is red
{
//valor_ledR = (40.0 - tp)/40.0;
valor_ledR = valor_ledR + (valor_inicial - valor_final)/200;
if(valor_ledR < 0.0)
{
valor_ledR = 0.0;
}
if(valor_ledR > 1.0)
{
valor_ledR = 1.0;
}
led1 = valor_ledB = 1.0; //turn off
led2 = valor_ledG = 1.0; //turn off
led3 = valor_ledR; //put new value on red led
}
if(led_atual == 4)
{
//valor_ledB = (40.0 - tp)/40.0;
valor_ledB = valor_ledB + (valor_inicial - valor_final)/200;
if(valor_ledB < 0.0)
{
valor_ledB = 0.0;
}
if(valor_ledB > 1.0)
{
valor_ledB = 1.0;
}
led1 = valor_ledB; //put new value on blue led
led2 = valor_ledG = valor_ledB; //put new value on green led
led3 = valor_ledR = 1.0; //turn off
}
if(led_atual == 5)
{
//valor_ledB = (40.0 - tp)/40.0;
valor_ledB = valor_ledB + (valor_inicial - valor_final)/200;
if(valor_ledB < 0.0)
{
valor_ledB = 0.0;
}
if(valor_ledB > 1.0)
{
valor_ledB = 1.0;
}
led1 = valor_ledB; //put new value on blue led
led2 = valor_ledG = 1.0; //turn off
led3 = valor_ledR = valor_ledB; //put new value on red led
}
if(led_atual == 6)
{
//valor_ledG = (40.0 - tp)/40.0;
valor_ledG = valor_ledG + (valor_inicial - valor_final)/200;
if(valor_ledG < 0.0)
{
valor_ledG = 0.0;
}
if(valor_ledG > 1.0)
{
valor_ledG = 1.0;
}
led1 = valor_ledB = 1.0; //turn off
led2 = valor_ledG; //put new value on green led
led3 = valor_ledR = valor_ledG; //put new value on red led
}
if(led_atual == 7) // select color is white
{
//valor_ledB = (40.0 - tp)/40.0;
valor_ledB = valor_ledB + (valor_inicial - valor_final)/200;
if(valor_ledB < 0.0)
{
valor_ledB = 0.0;
}
if(valor_ledB > 1.0)
{
valor_ledB = 1.0;
}
led1 = valor_ledB; //put new value on blue led
led2 = valor_ledG = valor_ledB; //put new value on green led
led3 = valor_ledR = valor_ledB; //put new value on red led
}
}
//led1 = (tsi.readPercentage()==0)?(1-abs(acc.getAccX())):((tp>0.00 && tp <= 0.33)?(1-(tp-0.00)*3):1);
//led2 = (tsi.readPercentage()==0)?(1-abs(acc.getAccY())):((tp>=0.34 && tp <= 0.66)?(1-(tp-0.33)*3):1);
//led3 = (tsi.readPercentage()==0)?(1-abs(acc.getAccZ())):((tp>=0.67 && tp <= 0.99)?(1-(tp-0.66)*3):1);
wait(0.1);
}
}