Tadao Iida
mbed/ARM 活用事例 第5章 赤外線距離センサを使う
Revision 0:b5ce43c9e6b0, committed 2011-10-04
- Comitter:
- sunifu
- Date:
- Tue Oct 04 13:23:35 2011 +0000
- Commit message:
Changed in this revision
--- /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
--- /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(']');
+ }
+}
--- /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