Yihui Xiong / Mbed 2 deprecated Arch_Analog_Thermistor_Blinker

Temperature Sensing

Dependencies:   mbed

Fork of Arch_Analog_Thermistor_Blinker by Visweswara R

Files at this revision

API Documentation at this revision

Revision 7:5c2ade6745ae, committed 2014-08-20

Comitter:
yihui
Date:
Wed Aug 20 07:17:31 2014 +0000
Parent:
6:914bd412ceda
Commit message:
fix the equation and change the analog pin

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file 
diff -r 914bd412ceda -r 5c2ade6745ae main.cpp
--- a/main.cpp	Tue Oct 08 08:53:33 2013 +0000
+++ b/main.cpp	Wed Aug 20 07:17:31 2014 +0000
@@ -1,6 +1,6 @@
 #include "mbed.h"
 
-AnalogIn thermistor(P0_11);   /* Thermistor output connected to P0_11 */
+AnalogIn thermistor(A1);   /* Temperature sensor connected to Analog Grove connector */
 
 DigitalOut tensplaceLED(LED4);  /* This led blinks as per tens place of temperature value(in deg C) */
 DigitalOut unitsplaceLED(LED1); /* This led blinks as per units place of temperature value(in deg C) */
@@ -17,7 +17,7 @@
         resistance= (float) 10000.0 * ((65536.0 / a) - 1.0);
         
         /* Convert the resistance to temperature using Steinhart's Hart equation */
-        temperature=(1/((log(resistance/5000.0)/beta) + (1.0/298.15)))-273.15; 
+        temperature=(1/((log(resistance/10000.0)/beta) + (1.0/298.15)))-273.15; 
         
         units = (int) temperature % 10;
         tens  = (int) temperature / 10;

diff -r 914bd412ceda -r 5c2ade6745ae mbed.bld
--- a/mbed.bld	Tue Oct 08 08:53:33 2013 +0000
+++ b/mbed.bld	Wed Aug 20 07:17:31 2014 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/mbed_official/code/mbed/builds/9c8f0e3462fb
\ No newline at end of file
+http://mbed.org/users/mbed_official/code/mbed/builds/9327015d4013
\ No newline at end of file