Kory Hill / Mbed 2 deprecated BMP085_lib

demo program of BMP085 pressure sensor

Dependencies:   mbed

main.cpp@3:ae2b8103e52b, 2012-11-09 (annotated)

Committer:
newk8600
Date:
Fri Nov 09 18:42:56 2012 +0000
Revision:
3:ae2b8103e52b
Parent:
2:8c00953d4755 
little tweaks

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tylerjw 2:8c00953d4755 1 /*
newk8600 3:ae2b8103e52b 2 *@file main.cpp
newk8600 3:ae2b8103e52b 3 *
newk8600 3:ae2b8103e52b 4 *
newk8600 3:ae2b8103e52b 5 *
newk8600 3:ae2b8103e52b 6 *
newk8600 3:ae2b8103e52b 7 * 1.8 - 3.6V (Vdd)
newk8600 3:ae2b8103e52b 8 * 1.62 - 3.6 (Vddio)
newk8600 3:ae2b8103e52b 9 *
newk8600 3:ae2b8103e52b 10 *
newk8600 3:ae2b8103e52b 11 *Altitude = 44330*(1-(p/p0)^(1/5.255))
newk8600 3:ae2b8103e52b 12 * set p0 to sealevel pressure
newk8600 3:ae2b8103e52b 13 * delta p = 1hPa = 8.43m at sea level
newk8600 3:ae2b8103e52b 14 *
newk8600 3:ae2b8103e52b 15 */
tylerjw 2:8c00953d4755 16
tylerjw 2:8c00953d4755 17 /*
newk8600 3:ae2b8103e52b 18 *Pinout:
newk8600 3:ae2b8103e52b 19 *pin9 = SDA
newk8600 3:ae2b8103e52b 20 *pin10 = SCL
newk8600 3:ae2b8103e52b 21 *pin11 = XCLR (digital out; active low; Resets sensor)
newk8600 3:ae2b8103e52b 22 *pin12 = EOC ("end of conversation"; signal when conversion finished)
newk8600 3:ae2b8103e52b 23 *
newk8600 3:ae2b8103e52b 24 */
tylerjw 2:8c00953d4755 25
tylerjw 2:8c00953d4755 26 #include "mbed.h"
tylerjw 2:8c00953d4755 27 #include "BMP085.h"
tylerjw 2:8c00953d4755 28
tylerjw 2:8c00953d4755 29 I2C i2c(p9, p10); // sda, scl
tylerjw 2:8c00953d4755 30 BMP085 alt_sensor(i2c);
tylerjw 2:8c00953d4755 31 Serial pc(USBTX, USBRX); // tx, rx
tylerjw 2:8c00953d4755 32
tylerjw 2:8c00953d4755 33
tylerjw 2:8c00953d4755 34 int main()
tylerjw 2:8c00953d4755 35 {
tylerjw 2:8c00953d4755 36 pc.baud(9600);
tylerjw 2:8c00953d4755 37 //alt_sensor.display_cal_param(&pc);
newk8600 3:ae2b8103e52b 38 while(1) {
tylerjw 2:8c00953d4755 39 pc.printf("Temperature: %d\r\n", alt_sensor.get_temperature());
tylerjw 2:8c00953d4755 40 pc.printf("Pressure: %d\r\n", alt_sensor.get_pressure());
tylerjw 2:8c00953d4755 41 pc.printf("Altitude: %f\r\n", alt_sensor.get_altitude_ft());
newk8600 3:ae2b8103e52b 42
tylerjw 2:8c00953d4755 43 wait(0.5);
tylerjw 2:8c00953d4755 44 }