Simple example to read humidity and temperature from DHT11 sensor using DISCO-L475VG-IOT01A.
Fork of Nucleo_DHT11_Example by
main.cpp@1:85754e990223, 2018-04-18 (annotated)
- Committer:
- sliawatimena
- Date:
- Wed Apr 18 04:37:51 2018 +0000
- Revision:
- 1:85754e990223
- Parent:
- 0:dbffab632178
- Child:
- 2:4815ae0a2549
Tested with DISCO-L475VG-IOT01A.;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
ledonger | 0:dbffab632178 | 1 | #include "mbed.h" |
ledonger | 0:dbffab632178 | 2 | #include "DHT11.h" |
ledonger | 0:dbffab632178 | 3 | |
ledonger | 0:dbffab632178 | 4 | //Tested with success on STM32 Nucleo L476 |
ledonger | 0:dbffab632178 | 5 | |
sliawatimena | 1:85754e990223 | 6 | InterruptIn mybutton(USER_BUTTON); |
ledonger | 0:dbffab632178 | 7 | Serial pc(SERIAL_TX, SERIAL_RX); |
ledonger | 0:dbffab632178 | 8 | |
sliawatimena | 1:85754e990223 | 9 | DHT11 dht(A0); |
ledonger | 0:dbffab632178 | 10 | |
ledonger | 0:dbffab632178 | 11 | int main() { |
sliawatimena | 1:85754e990223 | 12 | pc.printf("\r\nDHT11 Reader example"); |
sliawatimena | 1:85754e990223 | 13 | pc.printf("\r\n===================="); |
sliawatimena | 1:85754e990223 | 14 | pc.printf("\r\nPress blue user button to read DHT1\r\n"); |
ledonger | 0:dbffab632178 | 15 | while(1) { |
ledonger | 0:dbffab632178 | 16 | if(mybutton == 0){ |
sliawatimena | 1:85754e990223 | 17 | pc.printf("\r\nmybutton pressed!"); |
ledonger | 0:dbffab632178 | 18 | if(dht.readData() < 0){ |
sliawatimena | 1:85754e990223 | 19 | pc.printf("\r\nError while reading"); |
ledonger | 0:dbffab632178 | 20 | } |
ledonger | 0:dbffab632178 | 21 | else{ |
sliawatimena | 1:85754e990223 | 22 | pc.printf("\r\nReading DHT11 from A0"); |
sliawatimena | 1:85754e990223 | 23 | pc.printf("\r\nTemperature: %d ",dht.getTemperature()); |
sliawatimena | 1:85754e990223 | 24 | pc.printf("\r\nHumidity: %d \r\n",dht.getHumidity()); |
ledonger | 0:dbffab632178 | 25 | } |
ledonger | 0:dbffab632178 | 26 | |
ledonger | 0:dbffab632178 | 27 | } |
ledonger | 0:dbffab632178 | 28 | } |
ledonger | 0:dbffab632178 | 29 | } |