93 lines
1.9 KiB
Arduino
93 lines
1.9 KiB
Arduino
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/*******************************************
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Sample sketch that configures an HMC5883L 3 axis
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magnetometer to continuous mode and reads back
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the three axis of data.
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Code compiles to a size of 1500 bytes
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Equivalent Wire Library code compiles to 2032 bytes
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*******************************************/
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#include "I2C.h"
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#define Si7005 0x40
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void setup()
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{
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I2c.begin();
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}
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void loop()
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{
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uint16_t DATA = 1;
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uint16_t Temperatura = 0;
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uint16_t Humedad = 0;
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I2c.write(Si7005,0x03,0x11); //configura el dispositivo para medir temperatura
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delay(15);
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while (DATA&0x0001 == 0x0001)
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{
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I2c.read(Si7005,0x00,1); //read 1 byte
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DATA = I2c.receive();
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}
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I2c.read(Si7005,0x01,2); //read 2 bytes
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DATA = I2c.receive()<<8;
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Temperatura =(DATA|I2c.receive())>>2;
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DATA = 1;
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I2c.write(Si7005,0x03,0x01); //configura el dispositivo para medir temperatura
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delay(15);
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while (DATA&0x0001 == 0x0001)
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{
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I2c.read(Si7005,0x00,1); //read 1 byte
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DATA = I2c.receive();
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}
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I2c.read(Si7005,0x01,2); //read 2 bytes
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DATA = I2c.receive()<<8;
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Humedad =(DATA|I2c.receive())>>4;
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Serial.print("Temperatura: ");
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Serial.print(((float)Temperatura/32)-50);
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Serial.print(" C, Humedad: ");
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Serial.print(((float)Humedad/16)-24);
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Serial.println(" %");
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}
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/* Wire library equivalent would be this
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//#include <Wire.h>
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#define HMC5883L 0x1E
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int x = 0;
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int y = 0;
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int z = 0;
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void setup()
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{
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Wire.begin();
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Wire.beginTransmission(HMC5883L);
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Wire.send(0x02);
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Wire.send(0x00);
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Wire.endTransmission();
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}
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void loop()
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{
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Wire.beginTransmission(HMC5883L);
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Wire.send(0x03);
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Wire.endTransmission();
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Wire.requestFrom(HMC5883L,6);
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x = Wire.receive() << 8;
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x |= Wire.receive();
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y = Wire.receive() << 8;
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y |= Wire.receive();
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z = Wire.receive() << 8;
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z |= Wire.receive();
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}
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********************************************/
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