Ismael Omar
test
Revision 0:2f70df382411, committed 2015-09-28
- Comitter:
- ismaelo
- Date:
- Mon Sep 28 09:32:33 2015 +0000
- Commit message:
- new
Changed in this revision
diff -r 000000000000 -r 2f70df382411 TMP006_lib.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TMP006_lib.lib Mon Sep 28 09:32:33 2015 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/sammacjunkie/code/TMP006_lib/#48c0564d877a
diff -r 000000000000 -r 2f70df382411 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Sep 28 09:32:33 2015 +0000
@@ -0,0 +1,57 @@
+#include "mbed.h"
+#include "TMP006.h"
+
+#define Address 0x80
+
+// for dust sensor
+DigitalOut myled(LED1);
+DigitalOut ledPower(D8);
+AnalogIn analog_value(p15);
+
+int samplingTime = 280;//280 microseconds
+int deltaTime = 40;//40 us to give total pulse width of 0.32ms
+int sleepTime = 9680;//LED off for 9680 us to take 1 measurement per second
+
+float dustDensityCN = 0,dustDensitySharp = 0, voMeasured=0, voCalc=0;
+
+// end dust sensor
+
+TMP006 sensor(p9, p10, Address);
+
+int main()
+{
+ while(1) {
+ //printf("ObjTemp: %f \r \n", sensor.readObjTempC(Address));
+ //printf("RawDieTem: %f \r \n", sensor.readRawDieTemperature(Address));
+ printf("DieTemp: %f \r \n", sensor.readDieTempC(Address));
+
+ // dust sensor stuff starts from here
+ myled = !myled;
+ ledPower=0; // power on the LED. Pull-down to activate
+ wait_us(samplingTime);
+ voMeasured = analog_value.read(); // Converts and read the analog input value
+ wait_us(deltaTime);
+ ledPower=1; // turn the LED off. Pull up to turn off
+ wait_us(sleepTime);
+
+ voCalc = voMeasured*5.0;//Map 0:1 measured range to 0:3.3V
+
+ // Original equation taken from Sharp data sheet measured in mg/m3
+ // Sharp don't give you a best fit line, so you have to guess
+ dustDensitySharp = 0.5/2.8 * (float(voCalc) - 0.7);
+
+ // Eqaution calibrated by Chris Nafis (c) 2012
+ // see http://www.howmuchsnow.com/arduino/airquality/
+ // measured in parts per 0.01 cf
+ // [I did not get meaningful values on my sensor with Chris' formula
+ // For me the Sharp graph works just fine. So make your own tests]
+ //dustDensityCN = (float(voCalc) - 0.0356)*1.2;
+
+ printf("Measurment value: %1.3f", voMeasured);
+ printf("Voltage calculated: %1.3f", voCalc);
+ printf("Dust Density [mg/m3]: %f", dustDensitySharp);
+ // printf(" - C. Nafis' Dust Density [pp.01cf](x10^4): %f\n", dustDensityCN,"\n");
+
+ wait(1.0);
+ }
+}
\ No newline at end of file
diff -r 000000000000 -r 2f70df382411 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Sep 28 09:32:33 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/433970e64889 \ No newline at end of file