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cn 2020-06-14 09:41:49 +02:00
parent 931f5ff229
commit b3d22ab5c0
1 changed files with 11 additions and 0 deletions
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bme280/bme280.py
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@ -139,10 +139,17 @@ class Bme280(object):
pressure_raw = (data[0] << 12) | (data[1] << 4) | (data[2] >> 4)
temperature_raw = (data[3] << 12) | (data[4] << 4) | (data[5] >> 4)
humidity_raw = (data[6] << 8) | data[7]
print('pressure_raw: '+str(pressure_raw))
print('temperature_raw: '+str(temperature_raw))
print('humidity_raw: '+str(humidity_raw))
t_fine = self.calc_t_fine(temperature_raw)
print('t_fine: '+str(t_fine))
t = self.calc_compensated_temperature(t_fine)
p = self.calc_compensated_pressure(t_fine, pressure_raw)
h = self.calc_compensated_humidity(t_fine, humidity_raw)
print('temperature: '+str(t))
print('pressure: '+str(p))
print('humidity: '+str(h))
if self.get_mode() == MODE_FORCED:
# chip returns to sleep after data readout automatically, mirror it
@ -207,6 +214,9 @@ class Bme280(object):
self.digH.append((calibration_regs[30]<< 4) | ((calibration_regs[29] >> 4) & 0x0F))
self.digH.append( calibration_regs[31] )
for i in [0,1,2,3,4,5]:
print('digH'+str(i)+': '+str(self.digH[i]))
# fix sign for integers in two's complement
for i in [1,2]:
if self.digT[i] & 0x8000:
@ -255,6 +265,7 @@ class Bme280(object):
var_H = t_fine - 76800.0
var_H = (adc_H - (self.digH[3] * 64.0 + self.digH[4] / 16384.0 * var_H)) * (self.digH[1] / 65536.0 * (1.0 + self.digH[5] / 67108864.0 * var_H * (1.0 + self.digH[2] / 67108864.0 * var_H)))
var_H = var_H * (1.0 - self.digH[0] * var_H / 524288.0)
print('var_H: '+str(var_H))
if var_H > 100.0:
var_H = 100.0
elif var_H < 0.0: