hello i am having a problem with dht11.h not being recognised by the ide. i have finally got it to be
recognised in dhttester. the library path is setup the same way for both programs yet it wont pickup dht11.h in the following program. i have tried all ways of library setup firstly with way layed out in arduino site and various other ways but no luck i always restart the ide after any change and have restarted pc win7 several times no luck.
arduino ide is 1.6.12.
it has me stumped. ive been working with ibm compats since xt's and gwbasic etc long before c was invented. i can still work my way around in dos.
please tell me if im having a blonde moment here.
the code i am trying to verify is as follows
Code: [Select]
//Including Libs
#include "OneWire.h"
#include "VirtualWire.h"
#include "Wire.h" //Pressure sensor
#include "dht11.h"
//Defining Pins
#define DHTPIN 2
#define ONE_WIRE_BUS 10
#define DHTTYPE DHT11 // DHT 11
#define BMP085_ADDRESS 0x77 // I2C address of BMP085 //Pressure sensor
#define INTEGER_MAX (pow(2,31)-1)
#define E_MAX (pow(10, 7))
#define E_MIN (pow(10, -6))
#define EPSILON 0.000000119209
OneWire oneWire(ONE_WIRE_BUS);
int RF_TX_PIN = 12;
//Pressure sensor
const unsigned char OSS = 0; // Oversampling Setting
// Calibration values
int ac1;
int ac2;
int ac3;
unsigned int ac4;
unsigned int ac5;
unsigned int ac6;
int b1;
int b2;
int mb;
int mc;
int md;
// b5 is calculated in bmp085GetTemperature(...), this variable is also used in bmp085GetPressure(...)
// so ...Temperature(...) must be called before ...Pressure(...).
long b5;
//Seting up
void setup()
{
//For Debug
Serial.begin(9600);
Serial.println("Setup");
//Pressure sensor
Wire.begin();
bmp085Calibration();
// Setup transmit pin
vw_set_tx_pin(RF_TX_PIN);
vw_setup(2000); //
//For Debug
Serial.println("Start Pressure");
}
//Main Loop
void loop()
{
Serial.println("\n");
//First Sensor
//Humidity
int chk = DHT11.read(DHT11PIN);
//Send Data #H is for Humidity
SendData("#H"+ ((String)DHT11.humidity));
//Seccond Sensor
//Temp (Baro Pressure)
float temperature = bmp085GetTemperature(bmp085ReadUT()); //MUST be called first
//Send Data #C is for Celcious
SendData("#C"+(String(temperature,2)));
//Same seccond Sensor, next output
//Baro Pressure
float pressure = bmp085GetPressure(bmp085ReadUP());
//Send Data #P is for pressure
SendData("#P"+(String(pressure/100,2)));
//Wait for Next Loop
delay(5000);
}
void SendData(String Data)
{
//Debug
Serial.println("-->"+ Data + "<-- ");
//Making char Array of String
const char* rawdata = Data.c_str();
digitalWrite(13, true); // Flash a light to show transmitting
vw_send((uint8_t *)rawdata, strlen(rawdata)); //Send Data
vw_wait_tx(); // Wait until the whole message is gone
digitalWrite(13, false);
}
//Calabration of Barometic sensor
void bmp085Calibration()
{
ac1 = bmp085ReadInt(0xAA);
ac2 = bmp085ReadInt(0xAC);
ac3 = bmp085ReadInt(0xAE);
ac4 = bmp085ReadInt(0xB0);
ac5 = bmp085ReadInt(0xB2);
ac6 = bmp085ReadInt(0xB4);
b1 = bmp085ReadInt(0xB6);
b2 = bmp085ReadInt(0xB8);
mb = bmp085ReadInt(0xBA);
mc = bmp085ReadInt(0xBC);
md = bmp085ReadInt(0xBE);
}
// Calculate temperature in deg C
float bmp085GetTemperature(unsigned int ut){
long x1, x2;
x1 = (((long)ut - (long)ac6)*(long)ac5) >> 15;
x2 = ((long)mc << 11)/(x1 + md);
b5 = x1 + x2;
float temp = ((b5 + 8)>>4);
temp = temp /10;
return temp;
}
// Calculate pressure given up
// calibration values must be known
// b5 is also required so bmp085GetTemperature(...) must be called first.
// Value returned will be pressure in units of Pa.
long bmp085GetPressure(unsigned long up){
long x1, x2, x3, b3, b6, p;
unsigned long b4, b7;
b6 = b5 - 4000;
// Calculate B3
x1 = (b2 * (b6 * b6)>>12)>>11;
x2 = (ac2 * b6)>>11;
x3 = x1 + x2;
b3 = (((((long)ac1)*4 + x3)<<OSS) + 2)>>2;
// Calculate B4
x1 = (ac3 * b6)>>13;
x2 = (b1 * ((b6 * b6)>>12))>>16;
x3 = ((x1 + x2) + 2)>>2;
b4 = (ac4 * (unsigned long)(x3 + 32768))>>15;
b7 = ((unsigned long)(up - b3) * (50000>>OSS));
if (b7 < 0x80000000)
p = (b7<<1)/b4;
else
p = (b7/b4)<<1;
x1 = (p>>8) * (p>>8);
x1 = (x1 * 3038)>>16;
x2 = (-7357 * p)>>16;
p += (x1 + x2 + 3791)>>4;
long temp = p;
return temp;
}
// Read 1 byte from the BMP085 at 'address'
char bmp085Read(unsigned char address)
{
unsigned char data;
Wire.beginTransmission(BMP085_ADDRESS);
Wire.write(address);
Wire.endTransmission();
Wire.requestFrom(BMP085_ADDRESS, 1);
while(!Wire.available())
;
return Wire.read();
}
// Read 2 bytes from the BMP085
// First byte will be from 'address'
// Second byte will be from 'address'+1
int bmp085ReadInt(unsigned char address)
{
unsigned char msb, lsb;
Wire.beginTransmission(BMP085_ADDRESS);
Wire.write(address);
Wire.endTransmission();
Wire.requestFrom(BMP085_ADDRESS, 2);
while(Wire.available()<2)
;
msb = Wire.read();
lsb = Wire.read();
return (int) msb<<8 | lsb;
}
// Read the uncompensated temperature value
unsigned int bmp085ReadUT(){
unsigned int ut;
// Write 0x2E into Register 0xF4
// This requests a temperature reading
Wire.beginTransmission(BMP085_ADDRESS);
Wire.write(0xF4);
Wire.write(0x2E);
Wire.endTransmission();
// Wait at least 4.5ms
delay(5);
// Read two bytes from registers 0xF6 and 0xF7
ut = bmp085ReadInt(0xF6);
return ut;
}
// Read the uncompensated pressure value
unsigned long bmp085ReadUP(){
unsigned char msb, lsb, xlsb;
unsigned long up = 0;
// Write 0x34+(OSS<<6) into register 0xF4
// Request a pressure reading w/ oversampling setting
Wire.beginTransmission(BMP085_ADDRESS);
Wire.write(0xF4);
Wire.write(0x34 + (OSS<<6));
Wire.endTransmission();
// Wait for conversion, delay time dependent on OSS
delay(2 + (3<<OSS));
// Read register 0xF6 (MSB), 0xF7 (LSB), and 0xF8 (XLSB)
msb = bmp085Read(0xF6);
lsb = bmp085Read(0xF7);
xlsb = bmp085Read(0xF8);
up = (((unsigned long) msb << 16) | ((unsigned long) lsb << 8) | (unsigned long) xlsb) >> (8-OSS);
return up;
}
