Test code for MCP9700A Temperature Sensor
main.cpp@0:4418fc8bb525, 2014-08-20 (annotated)
- Committer:
- edodm85
- Date:
- Wed Aug 20 18:57:43 2014 +0000
- Revision:
- 0:4418fc8bb525
First rev
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
edodm85 | 0:4418fc8bb525 | 1 | /* |
edodm85 | 0:4418fc8bb525 | 2 | * Author: Edoardo De Marchi |
edodm85 | 0:4418fc8bb525 | 3 | * Date: 19-08-2014 |
edodm85 | 0:4418fc8bb525 | 4 | * Notes: Test code for MCP9700A Temperature Sensor |
edodm85 | 0:4418fc8bb525 | 5 | */ |
edodm85 | 0:4418fc8bb525 | 6 | |
edodm85 | 0:4418fc8bb525 | 7 | #include "mbed.h" |
edodm85 | 0:4418fc8bb525 | 8 | |
edodm85 | 0:4418fc8bb525 | 9 | Serial pc(USBTX, USBRX); |
edodm85 | 0:4418fc8bb525 | 10 | DigitalOut myled(LED1); |
edodm85 | 0:4418fc8bb525 | 11 | AnalogIn temp(p15); |
edodm85 | 0:4418fc8bb525 | 12 | |
edodm85 | 0:4418fc8bb525 | 13 | |
edodm85 | 0:4418fc8bb525 | 14 | float TempRead() |
edodm85 | 0:4418fc8bb525 | 15 | { |
edodm85 | 0:4418fc8bb525 | 16 | float Ta = 0.0; |
edodm85 | 0:4418fc8bb525 | 17 | |
edodm85 | 0:4418fc8bb525 | 18 | float t = temp.read(); //Read the input voltage |
edodm85 | 0:4418fc8bb525 | 19 | Ta = ((t * 3.3) - 0.5)/ 0.01; |
edodm85 | 0:4418fc8bb525 | 20 | |
edodm85 | 0:4418fc8bb525 | 21 | return Ta; // return the temp |
edodm85 | 0:4418fc8bb525 | 22 | } |
edodm85 | 0:4418fc8bb525 | 23 | |
edodm85 | 0:4418fc8bb525 | 24 | |
edodm85 | 0:4418fc8bb525 | 25 | int main() |
edodm85 | 0:4418fc8bb525 | 26 | { |
edodm85 | 0:4418fc8bb525 | 27 | pc.baud(115200); |
edodm85 | 0:4418fc8bb525 | 28 | |
edodm85 | 0:4418fc8bb525 | 29 | while(1) |
edodm85 | 0:4418fc8bb525 | 30 | { |
edodm85 | 0:4418fc8bb525 | 31 | pc.printf("The Temp is: %2.2f deg C\n\r", TempRead()); |
edodm85 | 0:4418fc8bb525 | 32 | myled = !myled; |
edodm85 | 0:4418fc8bb525 | 33 | |
edodm85 | 0:4418fc8bb525 | 34 | wait(2); |
edodm85 | 0:4418fc8bb525 | 35 | } |
edodm85 | 0:4418fc8bb525 | 36 | } |