How to use getShort method in Airtest

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bmeall.py

Source:bmeall.py Github

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...25from ctypes import c_ubyte26DEVICE = 0x76 # Default device I2C address27bus = smbus.SMBus(1) # Rev 2 Pi, Pi 2 & Pi 3 uses bus 128 # Rev 1 Pi uses bus 029def getShort(data, index):30 # return two bytes from data as a signed 16-bit value31 return c_short((data[index+1] << 8) + data[index]).value32def getUShort(data, index):33 # return two bytes from data as an unsigned 16-bit value34 return (data[index+1] << 8) + data[index]35def getChar(data,index):36 # return one byte from data as a signed char37 result = data[index]38 if result > 127:39 result -= 25640 return result41def getUChar(data,index):42 # return one byte from data as an unsigned char43 result = data[index] & 0xFF44 return result45def readBME280ID(addr=DEVICE):46 # Chip ID Register Address47 REG_ID = 0xD048 (chip_id, chip_version) = bus.read_i2c_block_data(addr, REG_ID, 2)49 return (chip_id, chip_version)50def readhumi(addr=DEVICE):51 # Register Addresses52 REG_DATA = 0xF753 REG_CONTROL = 0xF454 REG_CONFIG = 0xF555 REG_CONTROL_HUM = 0xF256 REG_HUM_MSB = 0xFD57 REG_HUM_LSB = 0xFE58 # Oversample setting - page 2759 OVERSAMPLE_TEMP = 260 OVERSAMPLE_PRES = 261 MODE = 162 # Oversample setting for humidity register - page 2663 OVERSAMPLE_HUM = 264 bus.write_byte_data(addr, REG_CONTROL_HUM, OVERSAMPLE_HUM)65 control = OVERSAMPLE_TEMP<<5 | OVERSAMPLE_PRES<<2 | MODE66 bus.write_byte_data(addr, REG_CONTROL, control)67 # Read blocks of calibration data from EEPROM68 # See Page 22 data sheet69 cal1 = bus.read_i2c_block_data(addr, 0x88, 24)70 cal2 = bus.read_i2c_block_data(addr, 0xA1, 1)71 cal3 = bus.read_i2c_block_data(addr, 0xE1, 7)72 # Convert byte data to word values73 dig_T1 = getUShort(cal1, 0)74 dig_T2 = getShort(cal1, 2)75 dig_T3 = getShort(cal1, 4)76 dig_P1 = getUShort(cal1, 6)77 dig_P2 = getShort(cal1, 8)78 dig_P3 = getShort(cal1, 10)79 dig_P4 = getShort(cal1, 12)80 dig_P5 = getShort(cal1, 14)81 dig_P6 = getShort(cal1, 16)82 dig_P7 = getShort(cal1, 18)83 dig_P8 = getShort(cal1, 20)84 dig_P9 = getShort(cal1, 22)85 dig_H1 = getUChar(cal2, 0)86 dig_H2 = getShort(cal3, 0)87 dig_H3 = getUChar(cal3, 2)88 dig_H4 = getChar(cal3, 3)89 dig_H4 = (dig_H4 << 24) >> 2090 dig_H4 = dig_H4 | (getChar(cal3, 4) & 0x0F)91 dig_H5 = getChar(cal3, 5)92 dig_H5 = (dig_H5 << 24) >> 2093 dig_H5 = dig_H5 | (getUChar(cal3, 4) >> 4 & 0x0F)94 dig_H6 = getChar(cal3, 6)95 # Wait in ms (Datasheet Appendix B: Measurement time and current calculation)96 wait_time = 1.25 + (2.3 * OVERSAMPLE_TEMP) + ((2.3 * OVERSAMPLE_PRES) + 0.575) + ((2.3 * OVERSAMPLE_HUM)+0.575)97 time.sleep(wait_time/1000) # Wait the required time98 # Read temperature/pressure/humidity99 data = bus.read_i2c_block_data(addr, REG_DATA, 8)100 pres_raw = (data[0] << 12) | (data[1] << 4) | (data[2] >> 4)101 temp_raw = (data[3] << 12) | (data[4] << 4) | (data[5] >> 4)102 hum_raw = (data[6] << 8) | data[7]103 #Refine temperature104 var1 = ((((temp_raw>>3)-(dig_T1<<1)))*(dig_T2)) >> 11105 var2 = (((((temp_raw>>4) - (dig_T1)) * ((temp_raw>>4) - (dig_T1))) >> 12) * (dig_T3)) >> 14106 t_fine = var1+var2107 temperature = float(((t_fine * 5) + 128) >> 8);108 # Refine pressure and adjust for temperature109 var1 = t_fine / 2.0 - 64000.0110 var2 = var1 * var1 * dig_P6 / 32768.0111 var2 = var2 + var1 * dig_P5 * 2.0112 var2 = var2 / 4.0 + dig_P4 * 65536.0113 var1 = (dig_P3 * var1 * var1 / 524288.0 + dig_P2 * var1) / 524288.0114 var1 = (1.0 + var1 / 32768.0) * dig_P1115 if var1 == 0:116 pressure=0117 else:118 pressure = 1048576.0 - pres_raw119 pressure = ((pressure - var2 / 4096.0) * 6250.0) / var1120 var1 = dig_P9 * pressure * pressure / 2147483648.0121 var2 = pressure * dig_P8 / 32768.0122 pressure = pressure + (var1 + var2 + dig_P7) / 16.0123 # Refine humidity124 humidity = t_fine - 76800.0125 humidity = (hum_raw - (dig_H4 * 64.0 + dig_H5 / 16384.0 * humidity)) * (dig_H2 / 65536.0 * (1.0 + dig_H6 / 67108864.0 * humidity * (1.0 + dig_H3 / 67108864.0 * humidity)))126 humidity = humidity * (1.0 - dig_H1 * humidity / 524288.0)127 if humidity > 100:128 humidity = 100129 elif humidity < 0:130 humidity = 0131 #return temperature/100.0132 return humidity133 134def readpres(addr=DEVICE):135 # Register Addresses136 REG_DATA = 0xF7137 REG_CONTROL = 0xF4138 REG_CONFIG = 0xF5139 REG_CONTROL_HUM = 0xF2140 REG_HUM_MSB = 0xFD141 REG_HUM_LSB = 0xFE142 # Oversample setting - page 27143 OVERSAMPLE_TEMP = 2144 OVERSAMPLE_PRES = 2145 MODE = 1146 # Oversample setting for humidity register - page 26147 OVERSAMPLE_HUM = 2148 bus.write_byte_data(addr, REG_CONTROL_HUM, OVERSAMPLE_HUM)149 control = OVERSAMPLE_TEMP<<5 | OVERSAMPLE_PRES<<2 | MODE150 bus.write_byte_data(addr, REG_CONTROL, control)151 # Read blocks of calibration data from EEPROM152 # See Page 22 data sheet153 cal1 = bus.read_i2c_block_data(addr, 0x88, 24)154 cal2 = bus.read_i2c_block_data(addr, 0xA1, 1)155 cal3 = bus.read_i2c_block_data(addr, 0xE1, 7)156 # Convert byte data to word values157 dig_T1 = getUShort(cal1, 0)158 dig_T2 = getShort(cal1, 2)159 dig_T3 = getShort(cal1, 4)160 dig_P1 = getUShort(cal1, 6)161 dig_P2 = getShort(cal1, 8)162 dig_P3 = getShort(cal1, 10)163 dig_P4 = getShort(cal1, 12)164 dig_P5 = getShort(cal1, 14)165 dig_P6 = getShort(cal1, 16)166 dig_P7 = getShort(cal1, 18)167 dig_P8 = getShort(cal1, 20)168 dig_P9 = getShort(cal1, 22)169 dig_H1 = getUChar(cal2, 0)170 dig_H2 = getShort(cal3, 0)171 dig_H3 = getUChar(cal3, 2)172 dig_H4 = getChar(cal3, 3)173 dig_H4 = (dig_H4 << 24) >> 20174 dig_H4 = dig_H4 | (getChar(cal3, 4) & 0x0F)175 dig_H5 = getChar(cal3, 5)176 dig_H5 = (dig_H5 << 24) >> 20177 dig_H5 = dig_H5 | (getUChar(cal3, 4) >> 4 & 0x0F)178 dig_H6 = getChar(cal3, 6)179 # Wait in ms (Datasheet Appendix B: Measurement time and current calculation)180 wait_time = 1.25 + (2.3 * OVERSAMPLE_TEMP) + ((2.3 * OVERSAMPLE_PRES) + 0.575) + ((2.3 * OVERSAMPLE_HUM)+0.575)181 time.sleep(wait_time/1000) # Wait the required time182 # Read temperature/pressure/humidity183 data = bus.read_i2c_block_data(addr, REG_DATA, 8)184 pres_raw = (data[0] << 12) | (data[1] << 4) | (data[2] >> 4)185 temp_raw = (data[3] << 12) | (data[4] << 4) | (data[5] >> 4)186 hum_raw = (data[6] << 8) | data[7]187 #Refine temperature188 var1 = ((((temp_raw>>3)-(dig_T1<<1)))*(dig_T2)) >> 11189 var2 = (((((temp_raw>>4) - (dig_T1)) * ((temp_raw>>4) - (dig_T1))) >> 12) * (dig_T3)) >> 14190 t_fine = var1+var2191 temperature = float(((t_fine * 5) + 128) >> 8);192 # Refine pressure and adjust for temperature193 var1 = t_fine / 2.0 - 64000.0194 var2 = var1 * var1 * dig_P6 / 32768.0195 var2 = var2 + var1 * dig_P5 * 2.0196 var2 = var2 / 4.0 + dig_P4 * 65536.0197 var1 = (dig_P3 * var1 * var1 / 524288.0 + dig_P2 * var1) / 524288.0198 var1 = (1.0 + var1 / 32768.0) * dig_P1199 if var1 == 0:200 pressure=0201 else:202 pressure = 1048576.0 - pres_raw203 pressure = ((pressure - var2 / 4096.0) * 6250.0) / var1204 var1 = dig_P9 * pressure * pressure / 2147483648.0205 var2 = pressure * dig_P8 / 32768.0206 pressure = pressure + (var1 + var2 + dig_P7) / 16.0207 #return temperature/100.0208 press1 = pressure/100.0209 return press1210 211def readtemp(addr=DEVICE):212 # Register Addresses213 REG_DATA = 0xF7214 REG_CONTROL = 0xF4215 REG_CONFIG = 0xF5216 REG_CONTROL_HUM = 0xF2217 REG_HUM_MSB = 0xFD218 REG_HUM_LSB = 0xFE219 # Oversample setting - page 27220 OVERSAMPLE_TEMP = 2221 OVERSAMPLE_PRES = 2222 MODE = 1223 # Oversample setting for humidity register - page 26224 OVERSAMPLE_HUM = 2225 bus.write_byte_data(addr, REG_CONTROL_HUM, OVERSAMPLE_HUM)226 control = OVERSAMPLE_TEMP<<5 | OVERSAMPLE_PRES<<2 | MODE227 bus.write_byte_data(addr, REG_CONTROL, control)228 # Read blocks of calibration data from EEPROM229 # See Page 22 data sheet230 cal1 = bus.read_i2c_block_data(addr, 0x88, 24)231 cal2 = bus.read_i2c_block_data(addr, 0xA1, 1)232 cal3 = bus.read_i2c_block_data(addr, 0xE1, 7)233 # Convert byte data to word values234 dig_T1 = getUShort(cal1, 0)235 dig_T2 = getShort(cal1, 2)236 dig_T3 = getShort(cal1, 4)237 dig_P1 = getUShort(cal1, 6)238 dig_P2 = getShort(cal1, 8)239 dig_P3 = getShort(cal1, 10)240 dig_P4 = getShort(cal1, 12)241 dig_P5 = getShort(cal1, 14)242 dig_P6 = getShort(cal1, 16)243 dig_P7 = getShort(cal1, 18)244 dig_P8 = getShort(cal1, 20)245 dig_P9 = getShort(cal1, 22)246 dig_H1 = getUChar(cal2, 0)247 dig_H2 = getShort(cal3, 0)248 dig_H3 = getUChar(cal3, 2)249 dig_H4 = getChar(cal3, 3)250 dig_H4 = (dig_H4 << 24) >> 20251 dig_H4 = dig_H4 | (getChar(cal3, 4) & 0x0F)252 dig_H5 = getChar(cal3, 5)253 dig_H5 = (dig_H5 << 24) >> 20254 dig_H5 = dig_H5 | (getUChar(cal3, 4) >> 4 & 0x0F)255 dig_H6 = getChar(cal3, 6)256 # Wait in ms (Datasheet Appendix B: Measurement time and current calculation)257 wait_time = 1.25 + (2.3 * OVERSAMPLE_TEMP) + ((2.3 * OVERSAMPLE_PRES) + 0.575) + ((2.3 * OVERSAMPLE_HUM)+0.575)258 time.sleep(wait_time/1000) # Wait the required time259 # Read temperature/pressure/humidity260 data = bus.read_i2c_block_data(addr, REG_DATA, 8)261 pres_raw = (data[0] << 12) | (data[1] << 4) | (data[2] >> 4)262 temp_raw = (data[3] << 12) | (data[4] << 4) | (data[5] >> 4)263 hum_raw = (data[6] << 8) | data[7]264 #Refine temperature265 var1 = ((((temp_raw>>3)-(dig_T1<<1)))*(dig_T2)) >> 11266 var2 = (((((temp_raw>>4) - (dig_T1)) * ((temp_raw>>4) - (dig_T1))) >> 12) * (dig_T3)) >> 14267 t_fine = var1+var2268 temperature = float(((t_fine * 5) + 128) >> 8);269 #return temperature/100.0270 temp1 = temperature/100.0271 return temp1272 273def readall(addr=DEVICE):274 # Register Addresses275 REG_DATA = 0xF7276 REG_CONTROL = 0xF4277 REG_CONFIG = 0xF5278 REG_CONTROL_HUM = 0xF2279 REG_HUM_MSB = 0xFD280 REG_HUM_LSB = 0xFE281 # Oversample setting - page 27282 OVERSAMPLE_TEMP = 2283 OVERSAMPLE_PRES = 2284 MODE = 1285 # Oversample setting for humidity register - page 26286 OVERSAMPLE_HUM = 2287 bus.write_byte_data(addr, REG_CONTROL_HUM, OVERSAMPLE_HUM)288 control = OVERSAMPLE_TEMP<<5 | OVERSAMPLE_PRES<<2 | MODE289 bus.write_byte_data(addr, REG_CONTROL, control)290 # Read blocks of calibration data from EEPROM291 # See Page 22 data sheet292 cal1 = bus.read_i2c_block_data(addr, 0x88, 24)293 cal2 = bus.read_i2c_block_data(addr, 0xA1, 1)294 cal3 = bus.read_i2c_block_data(addr, 0xE1, 7)295 # Convert byte data to word values296 dig_T1 = getUShort(cal1, 0)297 dig_T2 = getShort(cal1, 2)298 dig_T3 = getShort(cal1, 4)299 dig_P1 = getUShort(cal1, 6)300 dig_P2 = getShort(cal1, 8)301 dig_P3 = getShort(cal1, 10)302 dig_P4 = getShort(cal1, 12)303 dig_P5 = getShort(cal1, 14)304 dig_P6 = getShort(cal1, 16)305 dig_P7 = getShort(cal1, 18)306 dig_P8 = getShort(cal1, 20)307 dig_P9 = getShort(cal1, 22)308 dig_H1 = getUChar(cal2, 0)309 dig_H2 = getShort(cal3, 0)310 dig_H3 = getUChar(cal3, 2)311 dig_H4 = getChar(cal3, 3)312 dig_H4 = (dig_H4 << 24) >> 20313 dig_H4 = dig_H4 | (getChar(cal3, 4) & 0x0F)314 dig_H5 = getChar(cal3, 5)315 dig_H5 = (dig_H5 << 24) >> 20316 dig_H5 = dig_H5 | (getUChar(cal3, 4) >> 4 & 0x0F)317 dig_H6 = getChar(cal3, 6)318 # Wait in ms (Datasheet Appendix B: Measurement time and current calculation)319 wait_time = 1.25 + (2.3 * OVERSAMPLE_TEMP) + ((2.3 * OVERSAMPLE_PRES) + 0.575) + ((2.3 * OVERSAMPLE_HUM)+0.575)320 time.sleep(wait_time/1000) # Wait the required time321 # Read temperature/pressure/humidity322 data = bus.read_i2c_block_data(addr, REG_DATA, 8)323 pres_raw = (data[0] << 12) | (data[1] << 4) | (data[2] >> 4)...

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bme280.py

Source:bme280.py Github

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...25from ctypes import c_ubyte26DEVICE = 0x76 # Default device I2C address27bus = smbus.SMBus(1) # Rev 2 Pi, Pi 2 & Pi 3 uses bus 128 # Rev 1 Pi uses bus 029def getShort(data, index):30 # return two bytes from data as a signed 16-bit value31 return c_short((data[index+1] << 8) + data[index]).value32def getUShort(data, index):33 # return two bytes from data as an unsigned 16-bit value34 return (data[index+1] << 8) + data[index]35def getChar(data,index):36 # return one byte from data as a signed char37 result = data[index]38 if result > 127:39 result -= 25640 return result41def getUChar(data,index):42 # return one byte from data as an unsigned char43 result = data[index] & 0xFF44 return result45def readBME280ID(addr=DEVICE):46 # Chip ID Register Address47 REG_ID = 0xD048 (chip_id, chip_version) = bus.read_i2c_block_data(addr, REG_ID, 2)49 return (chip_id, chip_version)50def readBME280All(addr=DEVICE):51 # Register Addresses52 REG_DATA = 0xF753 REG_CONTROL = 0xF454 REG_CONFIG = 0xF555 REG_CONTROL_HUM = 0xF256 REG_HUM_MSB = 0xFD57 REG_HUM_LSB = 0xFE58 # Oversample setting - page 2759 OVERSAMPLE_TEMP = 260 OVERSAMPLE_PRES = 261 MODE = 162 # Oversample setting for humidity register - page 2663 OVERSAMPLE_HUM = 264 bus.write_byte_data(addr, REG_CONTROL_HUM, OVERSAMPLE_HUM)65 control = OVERSAMPLE_TEMP<<5 | OVERSAMPLE_PRES<<2 | MODE66 bus.write_byte_data(addr, REG_CONTROL, control)67 # Read blocks of calibration data from EEPROM68 # See Page 22 data sheet69 cal1 = bus.read_i2c_block_data(addr, 0x88, 24)70 cal2 = bus.read_i2c_block_data(addr, 0xA1, 1)71 cal3 = bus.read_i2c_block_data(addr, 0xE1, 7)72 # Convert byte data to word values73 dig_T1 = getUShort(cal1, 0)74 dig_T2 = getShort(cal1, 2)75 dig_T3 = getShort(cal1, 4)76 dig_P1 = getUShort(cal1, 6)77 dig_P2 = getShort(cal1, 8)78 dig_P3 = getShort(cal1, 10)79 dig_P4 = getShort(cal1, 12)80 dig_P5 = getShort(cal1, 14)81 dig_P6 = getShort(cal1, 16)82 dig_P7 = getShort(cal1, 18)83 dig_P8 = getShort(cal1, 20)84 dig_P9 = getShort(cal1, 22)85 dig_H1 = getUChar(cal2, 0)86 dig_H2 = getShort(cal3, 0)87 dig_H3 = getUChar(cal3, 2)88 dig_H4 = getChar(cal3, 3)89 dig_H4 = (dig_H4 << 24) >> 2090 dig_H4 = dig_H4 | (getChar(cal3, 4) & 0x0F)91 dig_H5 = getChar(cal3, 5)92 dig_H5 = (dig_H5 << 24) >> 2093 dig_H5 = dig_H5 | (getUChar(cal3, 4) >> 4 & 0x0F)94 dig_H6 = getChar(cal3, 6)95 # Wait in ms (Datasheet Appendix B: Measurement time and current calculation)96 wait_time = 1.25 + (2.3 * OVERSAMPLE_TEMP) + ((2.3 * OVERSAMPLE_PRES) + 0.575) + ((2.3 * OVERSAMPLE_HUM)+0.575)97 time.sleep(wait_time/1000) # Wait the required time 98 # Read temperature/pressure/humidity99 data = bus.read_i2c_block_data(addr, REG_DATA, 8)100 pres_raw = (data[0] << 12) | (data[1] << 4) | (data[2] >> 4)...

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bmpsensor.py

Source:bmpsensor.py Github

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...9 10def convertToString(data):11 # Simple function to convert binary data into12 return str((data[1] + (256 * data[0])) / 1.2)13def getShort(data, index):14 # return two bytes from data as a signed 16-bit value15 return c_short((data[index] << 8) + data[index + 1]).value16def getUshort(data, index):17 # return two bytes from data as an unsigned 16-bit value18 return (data[index] << 8) + data[index + 1]19def readBmp180Id(addr=DEVICE):20 # Chip ID Register Address21 REG_ID = 0xD022 (chip_id, chip_version) = bus.read_i2c_block_data(addr, REG_ID, 2)23 return (chip_id, chip_version)24 25def readBmp180(addr=0x77):26 # Register Addresses27 REG_CALIB = 0xAA28 REG_MEAS = 0xF429 REG_MSB = 0xF630 REG_LSB = 0xF731 # Control Register Address32 CRV_TEMP = 0x2E33 CRV_PRES = 0x34 34 # Oversample setting35 OVERSAMPLE = 3 # 0 - 336 37 # Read calibration data from EEPROM38 cal = bus.read_i2c_block_data(addr, REG_CALIB, 22)39 # Convert byte data to word values40 AC1 = getShort(cal, 0)41 AC2 = getShort(cal, 2)42 AC3 = getShort(cal, 4)43 AC4 = getUshort(cal, 6)44 AC5 = getUshort(cal, 8)45 AC6 = getUshort(cal, 10)46 B1 = getShort(cal, 12)47 B2 = getShort(cal, 14)48 MB = getShort(cal, 16)49 MC = getShort(cal, 18)50 MD = getShort(cal, 20)51 # Read temperature52 bus.write_byte_data(addr, REG_MEAS, CRV_TEMP)53 time.sleep(0.005)54 (msb, lsb) = bus.read_i2c_block_data(addr, REG_MSB, 2)55 UT = (msb << 8) + lsb56 # Read pressure57 bus.write_byte_data(addr, REG_MEAS, CRV_PRES + (OVERSAMPLE << 6))58 time.sleep(0.04)59 (msb, lsb, xsb) = bus.read_i2c_block_data(addr, REG_MSB, 3)60 UP = ((msb << 16) + (lsb << 8) + xsb) >> (8 - OVERSAMPLE)61 # Refine temperature62 X1 = ((UT - AC6) * AC5) >> 1563 X2 = (MC << 11) / (X1 + MD)64 B5 = X1 + X2...

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