BME280 Combined humidity and pressure sensor library
Dependents: STRAIGHT_DRIVE_NO_SEP FLOW_DERP SkipperS2mputest LPC1768_BMP280_CAN_Interface ... more
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Revision 7:c72b726c7dc9, committed 2016-04-19
- Comitter:
- 12104404
- Date:
- Tue Apr 19 02:03:35 2016 +0000
- Parent:
- 6:d03826fe1062
- Commit message:
- exploded
Changed in this revision
BMP280.cpp | Show annotated file Show diff for this revision Revisions of this file |
BMP280.h | Show annotated file Show diff for this revision Revisions of this file |
--- a/BMP280.cpp Wed Apr 13 07:39:05 2016 +0000 +++ b/BMP280.cpp Tue Apr 19 02:03:35 2016 +0000 @@ -1,21 +1,21 @@ /** - * BME280 Combined humidity and pressure sensor library + * BMP280 Combined humidity and pressure sensor library * * @author Toyomasa Watarai * @version 1.0 * @date 06-April-2015 * - * Library for "BME280 temperature, humidity and pressure sensor module" from Switch Science + * Library for "BMP280 temperature, humidity and pressure sensor module" from Switch Science * https://www.switch-science.com/catalog/2236/ * - * For more information about the BME280: - * http://ae-bst.resource.bosch.com/media/products/dokumente/bme280/BST-BME280_DS001-10.pdf + * For more information about the BMP280: + * http://ae-bst.resource.bosch.com/media/products/dokumente/BMP280/BST-BMP280_DS001-10.pdf */ #include "mbed.h" #include "BMP280.h" -BME280::BME280(PinName sda, PinName scl, char slave_adr) +BMP280::BMP280(PinName sda, PinName scl, char slave_adr) : i2c_p(new I2C(sda, scl)), i2c(*i2c_p), @@ -25,7 +25,7 @@ initialize(); } -BME280::BME280(I2C &i2c_obj, char slave_adr) +BMP280::BMP280(I2C &i2c_obj, char slave_adr) : i2c_p(NULL), i2c(i2c_obj), @@ -35,13 +35,13 @@ initialize(); } -BME280::~BME280() +BMP280::~BMP280() { if (NULL != i2c_p) delete i2c_p; } -void BME280::initialize() +void BMP280::initialize() { char cmd[18]; @@ -101,7 +101,7 @@ */ } -float BME280::getTemperature() +float BMP280::getTemperature() { uint32_t temp_raw; float tempf; @@ -126,7 +126,7 @@ return (tempf/100.0f); } -float BME280::getPressure() +float BMP280::getPressure() { uint32_t press_raw; float pressf; @@ -162,32 +162,4 @@ pressf = (float)press; return (pressf/100.0f); -} - -/*float BME280::getHumidity() -{ - uint32_t hum_raw; - float humf; - char cmd[4]; - - cmd[0] = 0xfd; // hum_msb - i2c.write(address, cmd, 1); - i2c.read(address, &cmd[1], 2); - - hum_raw = (cmd[1] << 8) | cmd[2]; - - int32_t v_x1; - - v_x1 = t_fine - 76800; - v_x1 = (((((hum_raw << 14) -(((int32_t)dig_H4) << 20) - (((int32_t)dig_H5) * v_x1)) + - ((int32_t)16384)) >> 15) * (((((((v_x1 * (int32_t)dig_H6) >> 10) * - (((v_x1 * ((int32_t)dig_H3)) >> 11) + 32768)) >> 10) + 2097152) * - (int32_t)dig_H2 + 8192) >> 14)); - v_x1 = (v_x1 - (((((v_x1 >> 15) * (v_x1 >> 15)) >> 7) * (int32_t)dig_H1) >> 4)); - v_x1 = (v_x1 < 0 ? 0 : v_x1); - v_x1 = (v_x1 > 419430400 ? 419430400 : v_x1); - - humf = (float)(v_x1 >> 12); - - return (humf/1024.0f); -}*/ +} \ No newline at end of file
--- a/BMP280.h Wed Apr 13 07:39:05 2016 +0000 +++ b/BMP280.h Tue Apr 19 02:03:35 2016 +0000 @@ -18,7 +18,7 @@ #include "mbed.h" //#define _DEBUG -#define DEFAULT_SLAVE_ADDRESS (0x76 << 1) +#define DEFAULT_SLAVE_ADDRESS (0x77 << 1) #ifdef _DEBUG extern Serial pc; @@ -36,7 +36,7 @@ * @endcode */ -class BME280 +class BMP280 { public: @@ -47,7 +47,7 @@ * @param scl I2C-bus SCL pin * @param slave_adr (option) I2C-bus address (default: 0x76) */ - BME280(PinName sda, PinName sck, char slave_adr = DEFAULT_SLAVE_ADDRESS); + BMP280(PinName sda, PinName sck, char slave_adr = DEFAULT_SLAVE_ADDRESS); /** Create a BME280 instance * which is connected to specified I2C pins with specified address @@ -55,11 +55,11 @@ * @param i2c_obj I2C object (instance) * @param slave_adr (option) I2C-bus address (default: 0x76) */ - BME280(I2C &i2c_obj, char slave_adr = DEFAULT_SLAVE_ADDRESS); + BMP280(I2C &i2c_obj, char slave_adr = DEFAULT_SLAVE_ADDRESS); /** Destructor of BME280 */ - virtual ~BME280(); + virtual ~BMP280(); /** Initializa BME280 sensor *