Revision 0:28b9e26e75ac, committed 2010-11-11

Comitter:

littlexc

Date:

Thu Nov 11 16:01:21 2010 +0000

Child:

1:e3ea40a41d27

Commit message:

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GP2xx.cpp	Thu Nov 11 16:01:21 2010 +0000
@@ -0,0 +1,139 @@
+/*Libary for GP2D120
+*
+*
+* by Christopher Hasler.
+*
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+* THE SOFTWARE.
+*/
+
+
+#include "mbed.h"
+#include "GP2xx.h"
+  /* 
+  * @param ain analog in from sensor
+  */
+IRRangeFinder::IRRangeFinder (PinName pin, int type):   _pin(pin) {
+    sensor=type;
+};
+// returns value for range, greater than 4, 5, 6, 7, 8, 10, 12, 14, 20, 25, 30 cm
+int IRRangeFinder::read(void) {
+    float temp = _pin.read();
+    if (sensor==1) { //GP2D120
+        if ( temp<0.1212) {
+            return 30;
+        } else if (temp<0.1515) {
+            return 25;
+        } else if (temp<0.2121) {
+            return 20;
+        } else if (temp<0.2727) {
+            return 14;
+        } else if (temp<0.303) {
+            return 12;
+        } else if (temp<0.3939) {
+            return 10;
+        } else if (temp<0.4848) {
+            return 8;
+        } else if (temp<0.5454) {
+            return 7;
+        } else if (temp<0.606) {
+            return 6;
+        } else if (temp<0.6969) {
+            return 5;
+        } else {
+            return 4;
+        }
+    } else if (sensor == 2) { //GP2D12
+        if ( temp<0.136) {
+            return 80;
+        } else if ( temp<0.145) {
+            return 75;
+        } else if ( temp<0.15) {
+            return 70;
+        } else if ( temp<0.17) {
+            return 65;
+        } else if ( temp<0.18) {
+            return 60;
+        } else if ( temp<0.19) {
+            return 55;
+        } else if ( temp<0.21) {
+            return 50;
+        } else if ( temp<0.23) {
+            return 45;
+        } else if (temp<0.26) {
+            return 40;
+        } else if (temp<0.30) {
+            return 30;
+        } else if (temp<0.34) {
+            return 28;
+        } else if (temp<0.42) {
+            return 20;
+        } else if (temp<0.46) {
+            return 18;
+        } else if (temp<0.50) {
+            return 16;
+        } else if (temp<0.56) {
+            return 14;
+        } else if (temp<0.64) {
+            return 12;
+        } else if (temp<0.74) {
+            return 10;
+        } else {
+            return 9;
+        }
+    } else
+        return -1;
+}
+//returns value for floating point given by analog in
+float IRRangeFinder::read_f(void) {
+    return _pin.read();
+}
+
+//returns value for voltage, given by (1/3.3)*(read_f)
+float IRRangeFinder::read_v(void) {
+    float temp = _pin.read();
+    temp = temp*0.303;
+    return temp;
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+/*
+Serial pc(USBTX, USBRX); // tx, rx
+AnalogIn IRRF(p18);
+
+int main() {
+    pc.printf("Hello World!");
+    while (1) {
+
+        pc.printf("%x \n", IRRF.read_u16());
+        wait(0.1);
+
+    }
+}*/

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GP2xx.h	Thu Nov 11 16:01:21 2010 +0000
@@ -0,0 +1,61 @@
+/*Libary for GP2D120
+*  
+* 
+* by Christopher Hasler.
+* 
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+* THE SOFTWARE.
+*/
+
+#ifndef MBED_IRRangeFinder_H
+#define MBED_IRRangeFinder_H
+#include "mbed.h"
+/** class to control an IR range finder
+*/
+class IRRangeFinder {
+    
+    public:
+    /**  creates a IR range finder interface
+    *
+    * @param pin An Analog pin, the data line of the sensor is attached to
+    * @param type, deafult 1, GP2D120, 2, GP2D12
+    */
+        IRRangeFinder (PinName pin, int type = 1);
+        
+        /** returns value for range, greater than; note, scans from max to min. 
+        * feel free to invert the order to scan from min to max if required
+        */
+        int read(void);
+        
+        /** returns value for float, read from analog in.
+        */
+        float read_f(void);
+        
+       /** returns value for voltage
+        */
+        float read_v(void);
+        
+        
+    protected:
+    
+        AnalogIn _pin;
+        int sensor;
+        
+};
+#endif
\ No newline at end of file