wang tang / Mbed 2 deprecated Dissolved_oxygen_sensor_online

use Dussolved_oxygen_sensor_on_wifi

Dependencies:   watersenor_and_temp_code MQTT NetworkSocketAPI X_NUCLEO_IDW01M1v2 mbed

Fork of DS1820_IDW01M1 by CHANG rozen

BME280/BME280.hpp@0:80c7778c82b8, 2017-10-31 (annotated)

Committer:
rozendhyan@gmail.com
Date:
Tue Oct 31 18:41:30 2017 +0800
Revision:
0:80c7778c82b8
Child:
3:30d9b8d9adc9
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Who changed what in which revision?

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rozendhyan@gmail.com 0:80c7778c82b8 1 #include "mbed.h"
rozendhyan@gmail.com 0:80c7778c82b8 2
rozendhyan@gmail.com 0:80c7778c82b8 3 #ifndef BME280_HPP
rozendhyan@gmail.com 0:80c7778c82b8 4 #define BME280_HPP
rozendhyan@gmail.com 0:80c7778c82b8 5
rozendhyan@gmail.com 0:80c7778c82b8 6 #define BME280_size 14
rozendhyan@gmail.com 0:80c7778c82b8 7
rozendhyan@gmail.com 0:80c7778c82b8 8 Serial sensor(PA_11,PA_12);
rozendhyan@gmail.com 0:80c7778c82b8 9 Serial pc(USBTX,USBRX);
rozendhyan@gmail.com 0:80c7778c82b8 10 int AT[3] = {0xA5,0x52,0xF7};
rozendhyan@gmail.com 0:80c7778c82b8 11 class BME280{
rozendhyan@gmail.com 0:80c7778c82b8 12 public:
rozendhyan@gmail.com 0:80c7778c82b8 13 void judgement_data(char buf[]);
rozendhyan@gmail.com 0:80c7778c82b8 14 int Temp_read();
rozendhyan@gmail.com 0:80c7778c82b8 15
rozendhyan@gmail.com 0:80c7778c82b8 16 private:
rozendhyan@gmail.com 0:80c7778c82b8 17 void receive();
rozendhyan@gmail.com 0:80c7778c82b8 18 void send_AT();
rozendhyan@gmail.com 0:80c7778c82b8 19 char buf[BME280_size];
rozendhyan@gmail.com 0:80c7778c82b8 20 int Lux,Temp,Preesure,Hum,Height;
rozendhyan@gmail.com 0:80c7778c82b8 21
rozendhyan@gmail.com 0:80c7778c82b8 22 };
rozendhyan@gmail.com 0:80c7778c82b8 23 void BME280::judgement_data(char buf[]){
rozendhyan@gmail.com 0:80c7778c82b8 24 int i=0;
rozendhyan@gmail.com 0:80c7778c82b8 25 if(buf[i++]== 0x5A){
rozendhyan@gmail.com 0:80c7778c82b8 26 //pc.printf("first_step\n");
rozendhyan@gmail.com 0:80c7778c82b8 27 if(buf[i++]== 0x5A){
rozendhyan@gmail.com 0:80c7778c82b8 28 //pc.printf("second_step\n");
rozendhyan@gmail.com 0:80c7778c82b8 29 //i++;//go to data type
rozendhyan@gmail.com 0:80c7778c82b8 30 if(buf[i] == 0x15){
rozendhyan@gmail.com 0:80c7778c82b8 31 //pc.printf("Lux type\n");
rozendhyan@gmail.com 0:80c7778c82b8 32 i++;//04
rozendhyan@gmail.com 0:80c7778c82b8 33 Lux = ((buf[i+1]<<24) | (buf[i+2]<<16) | (buf[i+3]<<8) | buf[i+4])/100;
rozendhyan@gmail.com 0:80c7778c82b8 34 //Lux = (0x00<<24) | (0x00<<16) | (0xFE<<8) | 0x40;//test
rozendhyan@gmail.com 0:80c7778c82b8 35 //pc.printf("Lux = %d\n", Lux);
rozendhyan@gmail.com 0:80c7778c82b8 36 }else if(buf[i] == 0x45){
rozendhyan@gmail.com 0:80c7778c82b8 37 //pc.printf("temp type\n");
rozendhyan@gmail.com 0:80c7778c82b8 38 i++;//0A
rozendhyan@gmail.com 0:80c7778c82b8 39 Temp = ((buf[i+1]<<8)|(buf[i+2]))/100;
rozendhyan@gmail.com 0:80c7778c82b8 40 Preesure = ((buf[i+3]<<24)|(buf[i+4]<<16)|(buf[i+5]<<8)|(buf[i+6]))/100;
rozendhyan@gmail.com 0:80c7778c82b8 41 Hum = ((buf[i+7]<<8)|(buf[i+8]))/100;
rozendhyan@gmail.com 0:80c7778c82b8 42 Height = ((buf[i+9]<<8)|(buf[i+10]));
rozendhyan@gmail.com 0:80c7778c82b8 43 //pc.printf("Temp = %d\n", Temp);
rozendhyan@gmail.com 0:80c7778c82b8 44 //pc.printf("Preesure = %d\n", Preesure);
rozendhyan@gmail.com 0:80c7778c82b8 45 //pc.printf("Hum = %d\n", Hum);
rozendhyan@gmail.com 0:80c7778c82b8 46 //pc.printf("Height = %d\n", Height);
rozendhyan@gmail.com 0:80c7778c82b8 47 }
rozendhyan@gmail.com 0:80c7778c82b8 48 }
rozendhyan@gmail.com 0:80c7778c82b8 49 }
rozendhyan@gmail.com 0:80c7778c82b8 50 }
rozendhyan@gmail.com 0:80c7778c82b8 51 void BME280::receive(){
rozendhyan@gmail.com 0:80c7778c82b8 52 for(int i=0;i<BME280_size;i++){
rozendhyan@gmail.com 0:80c7778c82b8 53 buf[i] = sensor.getc();
rozendhyan@gmail.com 0:80c7778c82b8 54 //pc.putc(buf[i]);
rozendhyan@gmail.com 0:80c7778c82b8 55 }
rozendhyan@gmail.com 0:80c7778c82b8 56
rozendhyan@gmail.com 0:80c7778c82b8 57 }
rozendhyan@gmail.com 0:80c7778c82b8 58 void BME280::send_AT(){
rozendhyan@gmail.com 0:80c7778c82b8 59 for(int i=0;i<3;i++){
rozendhyan@gmail.com 0:80c7778c82b8 60 sensor.putc(AT[i]);
rozendhyan@gmail.com 0:80c7778c82b8 61 //pc.putc(AT[i]);
rozendhyan@gmail.com 0:80c7778c82b8 62 }
rozendhyan@gmail.com 0:80c7778c82b8 63 }
rozendhyan@gmail.com 0:80c7778c82b8 64 int BME280::Temp_read(){
rozendhyan@gmail.com 0:80c7778c82b8 65 send_AT();
rozendhyan@gmail.com 0:80c7778c82b8 66 //wait(0.2);
rozendhyan@gmail.com 0:80c7778c82b8 67 receive();
rozendhyan@gmail.com 0:80c7778c82b8 68 //wait(0.2);
rozendhyan@gmail.com 0:80c7778c82b8 69 judgement_data(this->buf);
rozendhyan@gmail.com 0:80c7778c82b8 70
rozendhyan@gmail.com 0:80c7778c82b8 71 return Temp;
rozendhyan@gmail.com 0:80c7778c82b8 72 }
rozendhyan@gmail.com 0:80c7778c82b8 73
rozendhyan@gmail.com 0:80c7778c82b8 74 #endif