foivos Hristou / Mbed 2 deprecated FRDM_touch2RGB

FRDM_touch2RGB

Dependencies:   TSI mbed

main.cpp@0:9f96889b0328, 2014-10-07 (annotated)

Committer:
foivosHrist
Date:
Tue Oct 07 23:32:46 2014 +0000
Revision:
0:9f96889b0328
touch2RGB v1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
foivosHrist 0:9f96889b0328 1 // touch2RGB
foivosHrist 0:9f96889b0328 2 //program for FRDM-KL25Z
foivosHrist 0:9f96889b0328 3 //each touch on the touch sensor switches embedded led between Red Green and Blue colours
foivosHrist 0:9f96889b0328 4
foivosHrist 0:9f96889b0328 5 #include "mbed.h"
foivosHrist 0:9f96889b0328 6 #include "TSISensor.h"
foivosHrist 0:9f96889b0328 7
foivosHrist 0:9f96889b0328 8 const float TOUCH_THRESHOLD=0.5; //sensor returns analog value from 0.0(no touch) to 1.0(full touch) to determine when there is a touch
foivosHrist 0:9f96889b0328 9 enum colour { RED=0,GREEN,BLUE};
foivosHrist 0:9f96889b0328 10
foivosHrist 0:9f96889b0328 11 bool analog2dig(float );
foivosHrist 0:9f96889b0328 12 void setColour(colour);
foivosHrist 0:9f96889b0328 13
foivosHrist 0:9f96889b0328 14 DigitalOut r (LED_RED);
foivosHrist 0:9f96889b0328 15 DigitalOut g (LED_GREEN);
foivosHrist 0:9f96889b0328 16 DigitalOut b (LED_BLUE);
foivosHrist 0:9f96889b0328 17 colour currentColour=RED;
foivosHrist 0:9f96889b0328 18
foivosHrist 0:9f96889b0328 19 Serial pc(USBTX,USBRX); //serial connection with pc
foivosHrist 0:9f96889b0328 20 TSISensor tsi; //touchSensor
foivosHrist 0:9f96889b0328 21
foivosHrist 0:9f96889b0328 22
foivosHrist 0:9f96889b0328 23
foivosHrist 0:9f96889b0328 24 int main() {
foivosHrist 0:9f96889b0328 25 bool previousState=analog2dig(tsi.readPercentage());
foivosHrist 0:9f96889b0328 26 bool currentState;
foivosHrist 0:9f96889b0328 27
foivosHrist 0:9f96889b0328 28 setColour(currentColour); //set initial colour
foivosHrist 0:9f96889b0328 29 pc.printf("begin - initial state=%d\n",previousState);
foivosHrist 0:9f96889b0328 30
foivosHrist 0:9f96889b0328 31 while(1){
foivosHrist 0:9f96889b0328 32 currentState=analog2dig(tsi.readPercentage());
foivosHrist 0:9f96889b0328 33 //pc.printf("state=%d\n",currentState);
foivosHrist 0:9f96889b0328 34 if(previousState==false && currentState==true){ //touch detected
foivosHrist 0:9f96889b0328 35 switch (currentColour){
foivosHrist 0:9f96889b0328 36 case RED:
foivosHrist 0:9f96889b0328 37 setColour(GREEN);
foivosHrist 0:9f96889b0328 38 break;
foivosHrist 0:9f96889b0328 39 case GREEN:
foivosHrist 0:9f96889b0328 40 setColour(BLUE);
foivosHrist 0:9f96889b0328 41 break;
foivosHrist 0:9f96889b0328 42 case BLUE:
foivosHrist 0:9f96889b0328 43 setColour(RED);
foivosHrist 0:9f96889b0328 44 break;
foivosHrist 0:9f96889b0328 45 };//end switch
foivosHrist 0:9f96889b0328 46 }//end if
foivosHrist 0:9f96889b0328 47 previousState=currentState;
foivosHrist 0:9f96889b0328 48 wait(0.1);
foivosHrist 0:9f96889b0328 49 }
foivosHrist 0:9f96889b0328 50 }
foivosHrist 0:9f96889b0328 51
foivosHrist 0:9f96889b0328 52 //---------------------------------------------
foivosHrist 0:9f96889b0328 53 void setColour(colour col){
foivosHrist 0:9f96889b0328 54 switch(col){
foivosHrist 0:9f96889b0328 55 case RED:
foivosHrist 0:9f96889b0328 56 r=0; // 0 enables the led
foivosHrist 0:9f96889b0328 57 g=1; // 1 disables the led
foivosHrist 0:9f96889b0328 58 b=1;
foivosHrist 0:9f96889b0328 59 currentColour=RED;
foivosHrist 0:9f96889b0328 60 break;
foivosHrist 0:9f96889b0328 61 case GREEN:
foivosHrist 0:9f96889b0328 62 r=1;
foivosHrist 0:9f96889b0328 63 g=0;
foivosHrist 0:9f96889b0328 64 b=1;
foivosHrist 0:9f96889b0328 65 currentColour=GREEN;
foivosHrist 0:9f96889b0328 66 break;
foivosHrist 0:9f96889b0328 67 case BLUE:
foivosHrist 0:9f96889b0328 68 r=1;
foivosHrist 0:9f96889b0328 69 g=1;
foivosHrist 0:9f96889b0328 70 b=0;
foivosHrist 0:9f96889b0328 71 currentColour=BLUE;
foivosHrist 0:9f96889b0328 72 break;
foivosHrist 0:9f96889b0328 73 }
foivosHrist 0:9f96889b0328 74 return;
foivosHrist 0:9f96889b0328 75 }
foivosHrist 0:9f96889b0328 76
foivosHrist 0:9f96889b0328 77
foivosHrist 0:9f96889b0328 78 //-----------------------------------------------
foivosHrist 0:9f96889b0328 79 bool analog2dig(float analogRead){
foivosHrist 0:9f96889b0328 80 return (analogRead>=TOUCH_THRESHOLD)?true:false;
foivosHrist 0:9f96889b0328 81
foivosHrist 0:9f96889b0328 82 }