Revision 1:1197997ae0ea, committed 2018-09-12

Comitter:

xmwmx

Date:

Wed Sep 12 15:51:26 2018 +0000

Parent:

0:6dca851b4779

Commit message:

???+??

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/example.cpp	Wed Sep 12 15:51:26 2018 +0000
@@ -0,0 +1,35 @@
+#include "sensors.h"
+#include "mbed.h"
+
+Serial usb2pc(PA_2, PA_3, 9600);  
+DigitalOut myled(PC_13);
+
+int main()
+{
+
+    
+    usb2pc.printf("starting\r\n");
+    sr501 x(PB_1);
+    BH1750 y(PB_7,PB_6);
+    
+    while(1)
+    {
+        /*
+        if(x.operator ==(true))
+        {
+            usb2pc.printf("get\r\n");
+            while(x.read()){usb2pc.printf("aaaaaaaaaaaaa\r\n");wait(0.1);myled=1;}
+            x.reset();
+        }
+        
+        else
+        {
+            usb2pc.printf("no\r\n");
+        }
+        wait(0.1);
+        */
+        
+        float light=y.getlightdata();
+        usb2pc.printf("Light intensity: %.4f Lux\r\n",light);
+    }
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Sep 12 15:51:26 2018 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/a97add6d7e64
\ No newline at end of file

--- a/sensors.cpp	Sun Sep 09 13:44:05 2018 +0000
+++ b/sensors.cpp	Wed Sep 12 15:51:26 2018 +0000
@@ -1,29 +1,82 @@
 #include "sensors.h"
 #include "mbed.h"
 
-//extern Serial usb;
-
-void sr501::triggered()
+extern Serial usb2pc;  
+extern DigitalOut myled;
+//============================================================
+void sr501::triggered()                                     //触发中断!!
 {
-    //usb.printf("Triggered!\r\n");
+    usb2pc.printf("sr501 Triggered!\r\n");
     status = true;
 }
-
-sr501::sr501(PinName pSignal)
-    : status(false), signal(pSignal)
+//--------
+sr501::sr501(PinName pSignal)                               //启动热释电!!!
+    : status(false), signal1(pSignal),signal2(pSignal)
 {
-    signal.rise(this, &sr501::triggered);
+    signal1.rise(this, &sr501::triggered);
+    usb2pc.printf("sr501 start!\r\n");
 }
-
-bool sr501::operator ==(const bool &target)
+//-------
+bool sr501::operator==(const bool &target)
 {
     if(status == target)
+    {
         return true;
+    }
     else
+    {
         return false;
+    }
 }
-
+//-------
 void sr501::reset()
 {
     status = false;
 }
+//-------
+int sr501::read()
+{
+    return signal2.read();
+}
+//==========================================
+BH1750::BH1750(PinName sda,PinName scl)                     //启动光强!!!!!(默认设置)
+    :link(sda,scl)                   
+{
+    status = true;
+    char mode[1]={BH1750_CONTINUOUS_HIGH_RES_MODE};
+    usb2pc.printf("modify\r\n");
+    while(status)
+    {
+        status = link.write(BH1750_I2CADDR, mode, sizeof(mode), false);
+        wait_ms(10);
+    }
+    usb2pc.printf("BH1750 start with default mode!\r\n");
+}
+//--------
+BH1750::BH1750(PinName sda,PinName scl,char mode[])           //启动光强!!!!!(自定义设置)
+    :link(sda,scl)         
+{
+    status = true;
+    while(status)
+    {
+        status = link.write(BH1750_I2CADDR, mode, sizeof(mode), false);
+        wait_ms(10);
+    }
+    usb2pc.printf("BH1750 start with customize mode!\r\n");    
+}
+//--------
+float BH1750::getlightdata()                                //读取光强(lux)
+{
+    status = true;
+    status = link.read(BH1750_I2CADDR, rawdata, 2, false);
+    if(!status)
+    {
+        float result = ((rawdata[0]<<8)|rawdata[1])/1.2;
+        return result;
+    }
+    else
+    {
+        usb2pc.printf("BH1750 read fail!\r\n");
+        return -1;
+    }
+}
\ No newline at end of file

--- a/sensors.h	Sun Sep 09 13:44:05 2018 +0000
+++ b/sensors.h	Wed Sep 12 15:51:26 2018 +0000
@@ -2,7 +2,28 @@
 #define SENSORS_H
 
 #include "mbed.h"
-//#include <stdlib.h>
+//+++++++++++++++++++++BH1750+++++++++++++++++++++++++++++
+#define BH1750_I2CADDR 0x46
+#define BH1750_POWER_DOWN 0x00                  // No active state
+#define BH1750_POWER_ON 0x01                    // Wating for measurment command
+#define BH1750_RESET 0x07                       // Reset data register value - not accepted in POWER_DOWN mode
+#define BH1750_CONTINUOUS_HIGH_RES_MODE  0x10   // Start measurement at 1lx resolution. Measurement time is approx 120ms.
+#define BH1750_CONTINUOUS_HIGH_RES_MODE_2  0x11 // Start measurement at 0.5lx resolution. Measurement time is approx 120ms.
+#define BH1750_CONTINUOUS_LOW_RES_MODE  0x13    // Start measurement at 4lx resolution. Measurement time is approx 16ms.
+
+// Start measurement at 1lx resolution. Measurement time is approx 120ms.
+// Device is automatically set to Power Down after measurement.
+#define BH1750_ONE_TIME_HIGH_RES_MODE  0x20
+
+// Start measurement at 0.5lx resolution. Measurement time is approx 120ms.
+// Device is automatically set to Power Down after measurement.
+#define BH1750_ONE_TIME_HIGH_RES_MODE_2  0x21
+
+// Start measurement at 1lx resolution. Measurement time is approx 120ms.
+// Device is automatically set to Power Down after measurement.
+#define BH1750_ONE_TIME_LOW_RES_MODE  0x23
+//++++++++++++++++++++++++++++++++++++++++
+
 
 class sr501
 {
@@ -13,12 +34,29 @@
   private:
 //    DigitalIn signal;
     bool status;
-    InterruptIn signal;
+    InterruptIn signal1;
+    DigitalIn signal2;
     void triggered();
   public:
     sr501(PinName pSignal);
-    bool operator ==(const bool &target);
+    bool operator==(const bool &target);
     void reset();
+    int read();
 };
+//=========================================
+class BH1750
+{
+    
+/*****
 
+*****/
+  private:
+    I2C link;
+    char rawdata[2];
+    bool status;
+  public:
+    BH1750(PinName sda,PinName scl);
+    BH1750(PinName sda,PinName scl,char mode[]);
+    float getlightdata();
+};
 #endif