GY39_GY-39_

#include "GY39.h" /* GY-39-----mini VCC----VCC SCL----A5 SDA----A4 GND--GND */ //#define uint16_t unsigned int #define GY39ADRESS 0x5b //GY-39器件地址 uint32_t P; uint16_t Temp; uint16_t Hum; uint16_t Alt; uint32_t Lux; uint8_t data[4]={0,0,0,0}; uint16_t get_Temp(void) { iic_read(0x04,data,2); Temp=data[0]*10+data[1]; Serial.print(data[0]); Serial.print(" "); Serial.println(data[1]); return Temp; } uint32_t get_P(void) { iic_read(0x06,data,4); P=data[0]*1000+data[1]*100+data[2]*10+data[3]; Serial.print(data[0]); Serial.print(" "); Serial.print(data[1]); Serial.print(" "); Serial.print(data[2]); Serial.print(" "); Serial.println(data[3]); return P; } uint16_t get_Hum(void) { iic_read(0x0a,data,2); Hum=data[0]*10+data[1]; Serial.print(data[0]); Serial.print(" "); Serial.println(data[1]); return Hum; } uint16_t get_Alt(void) { iic_read(0x0c,data,2); Alt=data[0]*10+data[1]; Serial.print(data[0]); Serial.print(" "); Serial.println(data[1]); return Alt; } uint32_t get_Lux(void) { uint8_t data[4]={0,0,0,0}; iic_read(0x00,data,4); Lux=data[0]*1000+data[1]*100+data[2]*10+data[3]; Serial.print(data[0]); Serial.print(" "); Serial.print(data[1]); Serial.print(" "); Serial.print(data[2]); Serial.print(" "); Serial.println(data[3]); return Lux; } void iic_read(unsigned char subadress,unsigned char *data,uint8_t a) { for (int i=0;i<a;i++){ Wire.beginTransmission(GY39ADRESS); Wire.write(subadress+i); Wire.endTransmission(false); delayMicroseconds(10); Wire.requestFrom(GY39ADRESS,1); data[i] = Wire.read(); } }