1、IIC驱动
2、SPL06-001/SPL06-007
3、驱动部分
class SPL06():
I2C=I2C(I2c_CLK_PIN,I2c_SDA_PIN)
SPL06_SlaveAddr = 0x76
# 写单个寄存器
def setReg(self, reg, dat):
self.I2C.write(self.SPL06_SlaveAddr,reg, dat)
# 读取单个寄存器封装
def getReg(self, reg):
self.rb[0]=0
self.rb[0]=self.I2C.read(self.SPL06_SlaveAddr,reg)
return self.rb[0]
# 读取双寄存器数据
def get2Reg(self, reg):
return self.getReg(reg) + self.getReg(reg+1) * 256
# 传感器初始化
def __init__(self):
self.rb = bytearray(1)
self.C0 = (self.getReg(0x10)<<4)+((self.getReg(0x11)&0xF0)>>4)
self.C0 = (0-((0xFFF^self.C0)+1)) if (self.C0 & (1<<11)) else self.C0
self.C1 = ((self.getReg(0x11)&0x0F)<<8)+self.getReg(0x12)
self.C1 = (0-((0xFFF^self.C1)+1)) if (self.C1 & (1<<11)) else self.C1
self.C00 = (self.getReg(0x13)<<12)+(self.getReg(0x14)<<4)+(self.getReg(0x15)>>4)
self.C00 = (0-((0xFFFFF^self.C00)+1)) if (self.C00 & (1<<19)) else self.C00
self.C10 = ((self.getReg(0x15)&0x0F)<<16)+(self.getReg(0x16)<<8)+self.getReg(0x17)
self.C10 = (0-((0xFFFFF^self.C10)+1)) if (self.C10 & (1<<19)) else self.C10
self.C01 = (self.getReg(0x18)<<8)+self.getReg(0x19)
self.C01 = (0-((0xFFFF^self.C01)+1)) if (self.C01 & (1<<15)) else self.C01
self.C11 = (self.getReg(0x1A)<<8)+self.getReg(0x1B)
self.C11 = (0-((0xFFFF^self.C11)+1)) if (self.C11 & (1<<15)) else self.C11
self.C20 = (self.getReg(0x1C)<<8)+self.getReg(0x1D)
self.C20 = (0-((0xFFFF^self.C20)+1)) if (self.C20 & (1<<15)) else self.C20
self.C21 = (self.getReg(0x1E)<<8)+self.getReg(0x1F)
self.C21 = (0-((0xFFFF^self.C21)+1)) if (self.C21 & (1<<15)) else self.C21
self.C30 = (self.getReg(0x20)<<8)+self.getReg(0x21)
self.C30 = (0-((0xFFFF^self.C30)+1)) if (self.C30 & (1<<15)) else self.C30
self.setReg(0x06,0x25)#气压测量配置 4 measurements 32 times
temp = self.getReg(0x09) #oversampling times>8时必须使用
self.setReg(0x09,temp|0x04)
self.setReg(0x07,0xa3) #温度测量配置 4 measurements 8 times
self.setReg(0x08,0x07)#测量模式配置 连续测量模式
self.T = 0
self.P = 0
self.Altitude = 0
# 读取数据并计算
def get(self):
adc_P = (self.getReg(0x00)<<16) + (self.getReg(0x01)<<8) + (self.getReg(0x02))
adc_P = (0-((adc_P^0xFFFFFF)+1)) if (adc_P & (1<<23))else adc_P
adc_T = (self.getReg(0x03)<<16) + (self.getReg(0x04)<<8) + (self.getReg(0x05))
adc_T= (0-((adc_T^0xFFFFFF)+1)) if (adc_T & (1<<23))else adc_T
Traw_src = adc_T/7864320.0 # 8times
Praw_src = adc_P/516096.0 # 32times
self.T = (0.5*self.C0+Traw_src*self.C1)-4.5 #板子有热源做简单的偏差处理
self.P = self.C00+Praw_src*(self.C10+Praw_src*(self.C20+Praw_src*self.C30))+Traw_src*self.C01+Traw_src*Praw_src*(self.C11+Praw_src*self.C21)
self.Altitude = 44330*(1-(self.P/101325)**(1/5.255))
return [self.T,self.P,self.Altitude]
# 获取温度数值：单位℃
def getTemp(self):
self.get()
return self.T
# 获取大气压强：单位pa
def getPress(self):
self.get()
return self.P
# 获取海拔高度：单位米
def getAltitude(self):
self.get()
return self.Altitude
#soft Reset
def reset(self):
self.setReg(0x0C, 0x09)
def SPL06Chack(self):#检查SPL06连接正常
print("ID:",self.getReg(0x0D))
if self.getReg(0x0D)==0x10:
return 1
else:
return 0
4、测试部分：
if __name__ == "__main__" :
SPL06_obj=SPL06()
if SPL06_obj.SPL06Chack()==1:
print('SPL06检测OK')
for i in range(1,500):
print('Temp:%f ℃ Press:%f Pa Altitude:%f m'%(SPL06_obj.getTemp(),SPL06_obj.getPress(),SPL06_obj.getAltitude()))
time.sleep(1)
5、测试结果：
6、完整驱动代码请点击：https://download.csdn.net/download/DD_Boy_liang/85721891
7、模拟IIC代码请点击：https://download.csdn.net/download/DD_Boy_liang/85721934
