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Merge pull request #1 from WurdahMekanik/master

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Adds error codes to differentiate between timeout possibilities, fixes delta range for data acquisition, and updates example code.
This commit is contained in:
Nicolas 2013-10-28 04:42:37 -07:00
commit e2f34b0ec7
4 changed files with 30 additions and 16 deletions
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10
examples/idDHT11_Lib_example/idDHT11_Lib_example.ino
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@ -47,8 +47,14 @@ void loop()
case IDDHTLIB_ERROR_CHECKSUM: case IDDHTLIB_ERROR_CHECKSUM:
Serial.println("Error\n\r\tChecksum error"); Serial.println("Error\n\r\tChecksum error");
break; break;
case IDDHTLIB_ERROR_TIMEOUT: case IDDHTLIB_ERROR_ISR_TIMEOUT:
Serial.println("Error\n\r\tTime out error"); Serial.println("Error\n\r\tISR Time out error");
break;
case IDDHTLIB_ERROR_RESPONSE_TIMEOUT:
Serial.println("Error\n\r\tResponse time out error");
break;
case IDDHTLIB_ERROR_DATA_TIMEOUT:
Serial.println("Error\n\r\tData time out error");
break; break;
case IDDHTLIB_ERROR_ACQUIRING: case IDDHTLIB_ERROR_ACQUIRING:
Serial.println("Error\n\r\tAcquiring"); Serial.println("Error\n\r\tAcquiring");

10
examples/idDHT11_Lib_example_Simple/idDHT11_Lib_example_Simple.ino
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@ -47,8 +47,14 @@ void loop()
case IDDHTLIB_ERROR_CHECKSUM: case IDDHTLIB_ERROR_CHECKSUM:
Serial.println("Error\n\r\tChecksum error"); Serial.println("Error\n\r\tChecksum error");
break; break;
case IDDHTLIB_ERROR_TIMEOUT: case IDDHTLIB_ERROR_ISR_TIMEOUT:
Serial.println("Error\n\r\tTime out error"); Serial.println("Error\n\r\tISR time out error");
break;
case IDDHTLIB_ERROR_RESPONSE_TIMEOUT:
Serial.println("Error\n\r\tResponse time out error");
break;
case IDDHTLIB_ERROR_DATA_TIMEOUT:
Serial.println("Error\n\r\tData time out error");
break; break;
case IDDHTLIB_ERROR_ACQUIRING: case IDDHTLIB_ERROR_ACQUIRING:
Serial.println("Error\n\r\tAcquiring"); Serial.println("Error\n\r\tAcquiring");

10
idDHT11.cpp
View File

@ -67,7 +67,7 @@ void idDHT11::isrCallback() {
int delta = (newUs-us); int delta = (newUs-us);
us = newUs; us = newUs;
if (delta>6000) { if (delta>6000) {
status = IDDHTLIB_ERROR_TIMEOUT; status = IDDHTLIB_ERROR_ISR_TIMEOUT;
state = STOPPED; state = STOPPED;
detachInterrupt(intNumber); detachInterrupt(intNumber);
return; return;
@ -81,7 +81,7 @@ void idDHT11::isrCallback() {
state = DATA; state = DATA;
} else { } else {
detachInterrupt(intNumber); detachInterrupt(intNumber);
status = IDDHTLIB_ERROR_TIMEOUT; status = IDDHTLIB_ERROR_RESPONSE_TIMEOUT;
state = STOPPED; state = STOPPED;
} }
break; break;
@ -90,7 +90,7 @@ void idDHT11::isrCallback() {
detachInterrupt(intNumber); detachInterrupt(intNumber);
status = IDDHTLIB_ERROR_DELTA; status = IDDHTLIB_ERROR_DELTA;
state = STOPPED; state = STOPPED;
} else if(60<delta && delta<135) { //valid in timing } else if(60<delta && delta<155) { //valid in timing
if(delta>90) //is a one if(delta>90) //is a one
bits[idx] |= (1 << cnt); bits[idx] |= (1 << cnt);
if (cnt == 0) { // whe have fullfilled the byte, go to next if (cnt == 0) { // whe have fullfilled the byte, go to next
@ -114,7 +114,7 @@ void idDHT11::isrCallback() {
} else cnt--; } else cnt--;
} else { } else {
detachInterrupt(intNumber); detachInterrupt(intNumber);
status = IDDHTLIB_ERROR_TIMEOUT; status = IDDHTLIB_ERROR_DATA_TIMEOUT;
state = STOPPED; state = STOPPED;
} }
break; break;
@ -176,4 +176,4 @@ double idDHT11::getDewPointSlow() {
double T = log(VP/0.61078); // temp var double T = log(VP/0.61078); // temp var
return (241.88 * T) / (17.558-T); return (241.88 * T) / (17.558-T);
} }
// EOF // EOF

16
idDHT11.h
View File

@ -21,17 +21,19 @@
#define IDDHT11LIB_VERSION "0.1" #define IDDHT11LIB_VERSION "0.1"
// state codes // state codes
#define IDDHTLIB_OK 0 #define IDDHTLIB_OK 0
#define IDDHTLIB_ACQUIRING 1 #define IDDHTLIB_ACQUIRING 1
#define IDDHTLIB_ACQUIRED 2 #define IDDHTLIB_ACQUIRED 2
#define IDDHTLIB_RESPONSE_OK 3 #define IDDHTLIB_RESPONSE_OK 3
// error codes // error codes
#define IDDHTLIB_ERROR_CHECKSUM -1 #define IDDHTLIB_ERROR_CHECKSUM -1
#define IDDHTLIB_ERROR_TIMEOUT -2 #define IDDHTLIB_ERROR_ISR_TIMEOUT -2
#define IDDHTLIB_ERROR_ACQUIRING -3 #define IDDHTLIB_ERROR_RESPONSE_TIMEOUT -3
#define IDDHTLIB_ERROR_DELTA -4 #define IDDHTLIB_ERROR_DATA_TIMEOUT -4
#define IDDHTLIB_ERROR_NOTSTARTED -5 #define IDDHTLIB_ERROR_ACQUIRING -5
#define IDDHTLIB_ERROR_DELTA -6
#define IDDHTLIB_ERROR_NOTSTARTED -7
#define IDDHT11_CHECK_STATE if(state == STOPPED) \ #define IDDHT11_CHECK_STATE if(state == STOPPED) \
return status; \ return status; \
@ -71,4 +73,4 @@ private:
volatile float hum; volatile float hum;
volatile float temp; volatile float temp;
}; };
#endif // idDHT11_H__ #endif // idDHT11_H__