Revision 4:1eea5edaffc4, committed 2019-05-01

Comitter:

aalbul3

Date:

Wed May 01 04:11:18 2019 +0000

Parent:

3:564e4aca4ff8

Commit message:

This is a test

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Dht11.cpp	Wed May 01 04:11:18 2019 +0000
@@ -0,0 +1,89 @@
+#include "Dht11.h"
+
+Dht11::Dht11(PinName const &p) : _pin(p) {
+    // Set creation time so we can make 
+    // sure we pause at least 1 second for 
+    // startup.
+    _timer.start();
+    
+    _temperature = 0;
+    _humidity = 0;
+}
+
+int Dht11::read()
+{
+    // BUFFER TO RECEIVE
+    uint8_t bits[5];
+    uint8_t cnt = 7;
+    uint8_t idx = 0;
+
+    // EMPTY BUFFER
+    for (int i=0; i< 5; i++) bits[i] = 0;
+    
+    // Verify sensor settled after boot
+    while(_timer.read_ms() < 1500) {}
+    _timer.stop();
+
+    // Notify it we are ready to read
+    _pin.output();
+    _pin = 0;
+    wait_ms(18);
+    _pin = 1;
+    wait_us(40);
+    _pin.input();
+
+    // ACKNOWLEDGE or TIMEOUT
+    unsigned int loopCnt = 10000;
+    while(_pin == 0)
+        if (loopCnt-- == 0) return DHTLIB_ERROR_TIMEOUT;
+
+    loopCnt = 10000;
+    while(_pin == 1)
+        if (loopCnt-- == 0) return DHTLIB_ERROR_TIMEOUT;
+
+    // READ OUTPUT - 40 BITS => 5 BYTES or TIMEOUT
+    for (int i=0; i<40; i++)
+    {
+        loopCnt = 10000;
+        while(_pin == 0)
+            if (loopCnt-- == 0) return DHTLIB_ERROR_TIMEOUT;
+
+        //unsigned long t = micros();
+        Timer t;
+        t. start();
+
+        loopCnt = 10000;
+        while(_pin == 1)
+            if (loopCnt-- == 0) return DHTLIB_ERROR_TIMEOUT;
+
+        if (t.read_us() > 40) bits[idx] |= (1 << cnt);
+        if (cnt == 0)   // next byte?
+        {
+            cnt = 7;    // restart at MSB
+            idx++;      // next byte!
+        }
+        else cnt--;
+    }
+
+    // WRITE TO RIGHT VARS
+    // as bits[1] and bits[3] are allways zero they are omitted in formulas.
+    _humidity    = bits[0]; 
+    _temperature = bits[2]; 
+
+    uint8_t sum = bits[0] + bits[2];  
+
+    if (bits[4] != sum) return DHTLIB_ERROR_CHECKSUM;
+    return DHTLIB_OK;
+}
+
+float Dht11::getFahrenheit() {
+    return((_temperature * 1.8) + 32);
+}
+
+int Dht11::getCelsius() {
+    return(_temperature);
+}
+
+int Dht11::getHumidity() {
+    return(_humidity);
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Dht11.h	Wed May 01 04:11:18 2019 +0000
@@ -0,0 +1,74 @@
+#ifndef DHT11_H
+#define DHT11_H
+
+#include "mbed.h"
+
+#define DHTLIB_OK                0
+#define DHTLIB_ERROR_CHECKSUM   -1
+#define DHTLIB_ERROR_TIMEOUT    -2
+
+/** Class for the DHT11 sensor.
+ * 
+ * Example:
+ * @code
+ * #include "mbed.h"
+ * #include "Dht11.h"
+ *
+ * Serial pc(USBTX, USBRX);
+ * Dht11 sensor(PTD7);
+ * 
+ * int main() {
+ *     sensor.read()
+ *     pc.printf("T: %f, H: %d\r\n", sensor.getFahrenheit(), sensor.getHumidity());
+ * }
+ * @endcode
+ */
+class Dht11
+{
+public:
+    /** Construct the sensor object.
+     *
+     * @param pin PinName for the sensor pin.
+     */
+    Dht11(PinName const &p);
+    
+    /** Update the humidity and temp from the sensor.
+     *
+     * @returns
+     *   0 on success, otherwise error.
+     */
+    int read();
+    
+    /** Get the temp(f) from the saved object.
+     *
+     * @returns
+     *   Fahrenheit float
+     */
+    float getFahrenheit();
+    
+    /** Get the temp(c) from the saved object.
+     *
+     * @returns
+     *   Celsius int
+     */
+    int getCelsius();
+    
+    /** Get the humidity from the saved object.
+     *
+     * @returns
+     *   Humidity percent int
+     */
+    int getHumidity();
+
+private:
+    /// percentage of humidity
+    int _humidity;
+    /// celsius
+    int _temperature;
+    /// pin to read the sensor info on
+    DigitalInOut _pin;
+    /// times startup (must settle for at least a second)
+    Timer _timer;
+};
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Stepper_Motor_X27168.lib	Wed May 01 04:11:18 2019 +0000
@@ -0,0 +1,1 @@
+https://developer.mbed.org/teams/ECE-4180/code/Stepper_Motor_X27168/#c346170974bc

--- a/main.cpp	Mon Apr 29 01:03:45 2019 +0000
+++ b/main.cpp	Wed May 01 04:11:18 2019 +0000
@@ -9,11 +9,18 @@
 #include "SDFileSystem.h" 
 #include <MbedJSONValue.h>
 #include <string>
+#include "StepperMotor_X27168.h"
 //IMPORTANT YOU NEED TO SET THE API KEY for thingspeak look for "your key here"
 //TAKE CARE URL doesn't excced buffer size 
 //sd card
 // SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd"); // MOSI, MISO, SCLK, SSEL
 //Ethernet Interface 
+
+DigitalOut communicate(p30);   ///Pull low until ready to go
+DigitalOut motor3(p23);
+StepperMotor_X27168 smotor3(p24,p25,p22,p21);
+
+
 EthernetInterface eth;
 //NTP service for date and Time used to set boards RTC
 NTPClient ntp;
@@ -32,8 +39,28 @@
 
 MbedJSONValue v;
 
+volatile char   c = '\0'; // Initialized to the NULL character
+volatile int check = 0;
+Serial device(p28,p27); //9-10 11u;    28-27 1768
+void onCharReceived()
+{
+    c = device.getc();
+    check = 1;
+}
+
 int main()
 {
+    communicate = 0;
+    pc.printf("\r\nWeather Reporter\n");
+    
+//    while (1) {
+//        wait(.1);
+//        }
+//    check = 0;
+    
+//    device.attach(&onCharReceived);
+    
+    
 
     int ret=0;
 
@@ -56,9 +83,12 @@
     mac = eth.getMACAddress();
     pc.printf("MAC: %s\r\n", mac);
     TCPSocketConnection sock;
+    
     sock.connect("api.openweathermap.org", 80);
+    wait(5);
     char http_cmd[] = "GET /data/2.5/weather?q=Atlanta,US&APPID=a1c3afc7f18b7ef578cef48d5163cda6 HTTP/1.0\r\n\r\n";
     if (!sock.is_connected()){
+        pc.printf("This not working");
         return -1;
         }
     sock.send_all(http_cmd, sizeof(http_cmd)-1);
@@ -75,13 +105,14 @@
     sock.close();
     
     eth.disconnect();
+    
    
     float forecastHumidity=0;
 //    float temperature=-100;
     float forcastTemp=0;
     float forcastDescription = 0;
 //    float forcastPressure;
-    wait(10);
+    wait(2);
     pc.printf("\r\nDHT Test program");
     pc.printf("\r\n******************\r\n");
     wait(1); // wait 1 second for device stable status
@@ -147,14 +178,29 @@
             std::time_t result = time(NULL);
 //            std::cout << std::asctime(std::localtime(&result))
 
-        printf("\n\nCurrent Time:  %s \r\n",ctime(&result));
-        printf("Current Temperature:  %s Kelvin \r\n",weather.temp);
-        printf("Humidity is %s \r\n",weather.hum);
-        printf("Weather Condition: %s  \r\n", weather.desc);
+
+
+   //     pc.printf("\n\nCurrent Time:  %s \r\n",ctime(&result));
+    //    pc.printf("Current Temperature:  %s Kelvin \r\n",weather.temp);
+   //     pc.printf("Humidity is %s \r\n",weather.hum);
+ //       pc.printf("Weather Condition: %s  \r\n", weather.desc);
+  //      
+        double weather_temp = atof(weather.temp.c_str());
+        //double weather_temp = 301.483;
+        weather_temp = weather_temp - 273.15;
+        weather_temp = (weather_temp * 9/5) + 32;
+        // range is 60 - 85
+        weather_temp = weather_temp - 60;
+        weather_temp = weather_temp * 360/25;
         
+        wait(5);
+        motor3 = 1;
+        smotor3.step_position(weather_temp);
+        wait(1.5);
+        communicate = 1;
    
     
     wait(60);
   }      
-}
-}
+
+}}