Records temperature using TMP36GZ and outputs to HD44780 LCD screen (using tick interrupt routine). Alterable trip level that turns on/off LED with hysteresis. For ST Nucleo F401RE.
Dependencies: RepeatButton TMP36 GZ TextLCD mbed
Fork of Thermostat_Nucleo by
Revision 1:9bf30974727c, committed 2014-02-26
- Comitter:
- MarcoAmerena
- Date:
- Wed Feb 26 14:20:25 2014 +0000
- Parent:
- 0:f5fbeaf3592c
- Commit message:
- Thermostat_NucleoF401_v1.00
Changed in this revision
main.cpp | Show annotated file Show diff for this revision Revisions of this file |
diff -r f5fbeaf3592c -r 9bf30974727c main.cpp --- a/main.cpp Wed Feb 26 13:33:47 2014 +0000 +++ b/main.cpp Wed Feb 26 14:20:25 2014 +0000 @@ -1,9 +1,40 @@ +/************************************************************************************ +Copyright (c) 2014 Marcus Parker Sapphire Research and Electronics ltd + +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. + +This program uses the following libraries: +mbed by mbed_official +TextLCD by Simon_Ford +TMP36GZ by Tyler_Weaver +RepeatButton by Jeroen_Hilgers + +Wiring instructions: +Two external buttons -> PB_4 and PB_3 +TMP36GZ pwr->3.3v, Vout->PA_0 +LCD connections as below +*****************************************************************************************/ + #include "mbed.h" #include "TextLCD.h" #include "TMP36GZ.h" #include "RepeatButton.h" -//#include "InterruptManager.h" -//#include <cstdlib> using namespace std; #define REPEAT_DELAY 500 @@ -13,7 +44,7 @@ Ticker tick; TextLCD lcd(PC_10, PC_12, PA_13, PA_14, PA_15, PB_7); // rs, e, d4-d7 -TMP36GZ temp(PA_0); +TMP36GZ temp(PA_0); DigitalOut led(LED1); KeyBuffer TheKeyBuffer(32); @@ -32,15 +63,15 @@ int main() { - level = 21.0; //Trip level is at %f initially + level = 25.0; //Initial trip level value float leveloff; int value; - tick.attach(&disp, 0.5); // setup ticker to call flip after # seconds + tick.attach(&disp, 0.5); //Calls display every 0.5 seconds while(1) { - d = temp.sample(); //Define d and f as temp celsius and fahrenheit + d = temp.sample(); //Define d as temp celsius reading leveloff = (level - 2); for(value = TheKeyBuffer.Read(); value != -1; value = TheKeyBuffer.Read()) //Button 1 and Button 3 increase and decrease trip level @@ -57,14 +88,13 @@ } } - if(d >= level) + if(d >= level) //Led will light up if temperature is above trip level { led = 1; } else if(d <= leveloff) { led = 0; - } - + } } }