watersensor and temp
Dependencies: MQTT NetworkSocketAPI X_NUCLEO_IDW01M1v2 mbed watersenor_and_temp_code
Fork of IDW01M1-MQTT by
Diff: BME280/BME280.hpp
- Revision:
- 0:80c7778c82b8
- Child:
- 3:30d9b8d9adc9
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BME280/BME280.hpp Tue Oct 31 18:41:30 2017 +0800 @@ -0,0 +1,74 @@ +#include "mbed.h" + +#ifndef BME280_HPP +#define BME280_HPP + +#define BME280_size 14 + +Serial sensor(PA_11,PA_12); +Serial pc(USBTX,USBRX); +int AT[3] = {0xA5,0x52,0xF7}; +class BME280{ +public: + void judgement_data(char buf[]); + int Temp_read(); + +private: + void receive(); + void send_AT(); + char buf[BME280_size]; + int Lux,Temp,Preesure,Hum,Height; + +}; +void BME280::judgement_data(char buf[]){ + int i=0; + if(buf[i++]== 0x5A){ + //pc.printf("first_step\n"); + if(buf[i++]== 0x5A){ + //pc.printf("second_step\n"); + //i++;//go to data type + if(buf[i] == 0x15){ + //pc.printf("Lux type\n"); + i++;//04 + Lux = ((buf[i+1]<<24) | (buf[i+2]<<16) | (buf[i+3]<<8) | buf[i+4])/100; + //Lux = (0x00<<24) | (0x00<<16) | (0xFE<<8) | 0x40;//test + //pc.printf("Lux = %d\n", Lux); + }else if(buf[i] == 0x45){ + //pc.printf("temp type\n"); + i++;//0A + Temp = ((buf[i+1]<<8)|(buf[i+2]))/100; + Preesure = ((buf[i+3]<<24)|(buf[i+4]<<16)|(buf[i+5]<<8)|(buf[i+6]))/100; + Hum = ((buf[i+7]<<8)|(buf[i+8]))/100; + Height = ((buf[i+9]<<8)|(buf[i+10])); + //pc.printf("Temp = %d\n", Temp); + //pc.printf("Preesure = %d\n", Preesure); + //pc.printf("Hum = %d\n", Hum); + //pc.printf("Height = %d\n", Height); + } + } + } +} +void BME280::receive(){ + for(int i=0;i<BME280_size;i++){ + buf[i] = sensor.getc(); + //pc.putc(buf[i]); + } + +} +void BME280::send_AT(){ + for(int i=0;i<3;i++){ + sensor.putc(AT[i]); + //pc.putc(AT[i]); + } +} +int BME280::Temp_read(){ + send_AT(); + //wait(0.2); + receive(); + //wait(0.2); + judgement_data(this->buf); + + return Temp; +} + +#endif