mbed/ARM 活用事例 第5章 赤外線距離センサを使う

Dependencies:   TextLCD mbed

Files at this revision

API Documentation at this revision

Comitter:
sunifu
Date:
Tue Oct 04 13:23:35 2011 +0000
Commit message:

Changed in this revision

TextLCD.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file
diff -r 000000000000 -r b5ce43c9e6b0 TextLCD.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TextLCD.lib	Tue Oct 04 13:23:35 2011 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/simon/code/TextLCD/#44f34c09bd37
diff -r 000000000000 -r b5ce43c9e6b0 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Oct 04 13:23:35 2011 +0000
@@ -0,0 +1,169 @@
+#include "mbed.h"
+#include "TextLCD.h"
+
+
+TextLCD lcd(p24, p26, p27, p28, p29, p30);
+/*
+AnalogIn in(p20);
+PwmOut out(p21);
+DigitalOut myled(LED1);
+
+Ticker input;
+Ticker output;
+double flash;
+float data,now,old=0.0;
+
+void run(){
+    old = now;
+    now = in;
+    data = ( now + old ) / 2.0;
+}
+
+void update(){
+    float range;
+    lcd.locate(0,0);
+    if ( data < 0.208 ){ // x <= 40cm 
+        flash = 0.0 ;
+        lcd.printf("  Safty  ");
+    }else if ( data < 0.272){  // 30cm <= x < 40cm
+        flash = 0.8 ;
+        lcd.printf("Caution! ");
+    }else if ( data < 0.389){  // 20cm <= x 30cm   
+        flash = 0.4 ;
+        lcd.printf("Caution! ");               
+    }else if ( data < 0.724){  // 10cm <= x < 20cm 
+        flash = 0.1 ;
+        lcd.printf(" Danger! ");
+    }else{                      // x < 10cm
+        flash = 0.05 ; 
+        lcd.printf(" Danger! ");
+    }
+    
+    
+    range = 25.33 * pow((data*3.3),-1.21);
+ 
+    lcd.locate(0,1);
+    if ( data > 0.12)
+        lcd.printf("RANGE %5.2f[cm]",range);
+    else
+        lcd.printf("RANGE OVER     ");        
+}
+  
+int main() {    
+
+    input.attach(&run,0.2);   
+    output.attach(&update,0.5);
+    out.period(0.001);
+    while(1){
+        out.write(0.0);
+        if ( flash != 0.0 ){
+            myled = !myled ;
+            wait(flash) ;
+            out.write(0.5);
+            wait(flash);
+        }else{
+            myled = 0;
+            out.write(0.0);
+        }    
+    }
+}
+
+
+*/
+
+
+
+
+AnalogOut out(p18);
+AnalogIn in(p20);
+Ticker input;
+Ticker output;
+int freq;
+double t = 0.0 ;
+float d11 = 0.0, d12 =0.0 ;
+float data;
+
+void run(){
+    data = in;
+}
+
+void wave(){
+        if ( data < 0.1212){
+            freq = 0;
+        }else if ( data < 0.181){
+            freq = 2093;
+        }else if ( data < 0.242){
+            freq = 1976;
+        }else if ( data < 0.333){
+            freq = 1760;
+        }else if ( data < 0.394){
+            freq = 1568;
+        }else if ( data < 0.485){  
+            freq = 1397; 
+        }else if ( data < 0.697 ){
+            freq = 1319; 
+        }else if ( data < 0.85){    
+            freq = 1175;
+        }else{
+            freq = 1046; 
+        }
+        float a;
+
+        if ( freq != 0 ){
+            a =0.5*sin(2.0 * 3.1415 * freq * t )+0.5;
+            out = a;
+        }
+        if ( t > 1.0 ) t = 0.0 ;
+        t=t+0.00005;
+}
+  
+int main() {    
+
+    input.attach(&run,0.5);   
+    output.attach_us(&wave,50);
+
+    while(1){
+
+        lcd.locate(0,0);
+        lcd.printf("%5.3f %4d",data,freq);
+        if ( 0.12 <= data){
+            float range = 25.33 * pow((data*3.3),-1.21);
+            lcd.locate(0,1);
+            lcd.printf("RANGE %5.2f[cm]",range);    
+        }else{
+            lcd.locate(0,1);
+            lcd.printf("RANGE -----[cm]");        
+        }                
+        lcd.locate(12,0);
+        lcd.putc('[');
+        if ( freq == 0){
+            lcd.putc('-');
+            lcd.putc('-');
+        }else if ( freq == 2093){
+            lcd.putc(0xC4);
+            lcd.putc(0xDE);    
+        }else if (freq == 1976){
+            lcd.putc(0xBC);
+            lcd.putc(0xFE);
+        }else if ( freq == 1760){
+            lcd.putc(0xD7);
+            lcd.putc(0xFE);
+        }else if ( freq == 1568){
+            lcd.putc(0xBF);
+            lcd.putc(0xFE);
+        }else if ( freq == 1397){  
+            lcd.putc(0xCC);
+            lcd.putc(0xA7);                 
+        }else if ( freq == 1319 ){
+            lcd.putc(0xD0);
+            lcd.putc(0xFE);
+        }else if ( freq == 1175){    
+            lcd.putc(0xDA);
+            lcd.putc(0xFE);
+        }else{
+            lcd.putc(0xC4);
+            lcd.putc(0xDE);
+        }
+        lcd.putc(']');
+    }
+}
diff -r 000000000000 -r b5ce43c9e6b0 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Tue Oct 04 13:23:35 2011 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/63bcd7ba4912