Clone the following into your BB and change the values in there accordingly (which i2c line, which device address...) and compile it and run it from user space:
https://github.com/BoschSensortec/BME280_driver/blob/master/examples/linux_userspace.c On Tuesday, November 13, 2018 at 2:38:25 PM UTC-5, rohan dhameliya wrote: > > so now how to use that C code which you provided in link. > sorry for trouble but i am very new to this things that's why don't know > how to run. > > On Tue, Nov 13, 2018 at 2:27 PM MG <[email protected] <javascript:>> > wrote: > >> It means that if ur sensor is connected to i2c-2 then your address is >> prob 0x77. Are you sure you are using correct address? >> >> On Tuesday, November 13, 2018 at 2:08:02 PM UTC-5, rohan dhameliya wrote: >>> >>> debian@beaglebone:/var/lib/cloud9$ i2cdetect -y -r 2 >>> 0 1 2 3 4 5 6 7 8 9 a b c d e f >>> 00: -- -- -- -- -- -- -- -- -- -- -- -- -- >>> 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- >>> 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- >>> 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- >>> 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- >>> 50: -- -- -- -- UU UU UU UU -- -- -- -- -- -- -- -- >>> 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- >>> 70: -- -- -- -- -- -- -- 77 >>> >>> i got this result what does it mean? >>> >>> On Tue, Nov 13, 2018 at 1:39 PM MG <[email protected]> wrote: >>> >>>> I just used BME280 with BB black with a c written example based on >>>> their drivers: https://github.com/BoschSensortec/BME280_driver >>>> >>>> and it worked no issue. Can u confirm which I2C line you are connected >>>> to? run i2cdetect -l to get enabled i2c lines and i2cdetect -y -r >>>> <i2c_number> to get of list of device addresses. I think mine was on 0x76 >>>> i2c-2. check for yours and make sure it is not showing as "U" which would >>>> explain why you are getting resources busy (either that or your device is >>>> not connected properly) >>>> >>>> On Tuesday, November 13, 2018 at 1:24:31 PM UTC-5, rohan dhameliya >>>> wrote: >>>>> >>>>> File "Adafruit_BME280_Example.py", line 3, in <module> >>>>> sensor = BME280(t_mode=BME280_OSAMPLE_8, p_mode=BME280_OSAMPLE_8, >>>>> h_mode=BME280_OSAMPLE_8) >>>>> File "/var/lib/cloud9/Adafruit_Python_BME280/Adafruit_BME280.py", >>>>> line 136, in __init__ >>>>> self._load_calibration() >>>>> File "/var/lib/cloud9/Adafruit_Python_BME280/Adafruit_BME280.py", >>>>> line 147, in _load_calibration >>>>> self.dig_T1 = self._device.readU16LE(BME280_REGISTER_DIG_T1) >>>>> File >>>>> "/usr/local/lib/python2.7/dist-packages/Adafruit_GPIO-1.0.3-py2.7.egg/Adafruit_GPIO/I2C.py", >>>>> >>>>> line 187, in readU16LE >>>>> return self.readU16(register, little_endian=True) >>>>> File >>>>> "/usr/local/lib/python2.7/dist-packages/Adafruit_GPIO-1.0.3-py2.7.egg/Adafruit_GPIO/I2C.py", >>>>> >>>>> line 166, in readU16 >>>>> result = self._bus.read_word_data(self._address,register) & 0xFFFF >>>>> File >>>>> "/usr/local/lib/python2.7/dist-packages/Adafruit_PureIO-0.2.3-py2.7.egg/Adafruit_PureIO/smbus.py", >>>>> >>>>> line 187, in read_word_data >>>>> ioctl(self._device.fileno(), I2C_RDWR, request) >>>>> IOError: [Errno 16] Device or resource busy >>>>> >>>>> >>>>> i getting this error try to find option but not working please help >>>>> me.. >>>>> >>>> -- >>>> For more options, visit http://beagleboard.org/discuss >>>> --- >>>> You received this message because you are subscribed to a topic in the >>>> Google Groups "BeagleBoard" group. >>>> To unsubscribe from this topic, visit >>>> https://groups.google.com/d/topic/beagleboard/rgI4CRwWA4Y/unsubscribe. >>>> To unsubscribe from this group and all its topics, send an email to >>>> [email protected]. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/beagleboard/958042b0-c1ca-4b24-a179-48631198cd93%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/beagleboard/958042b0-c1ca-4b24-a179-48631198cd93%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to a topic in the >> Google Groups "BeagleBoard" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/beagleboard/rgI4CRwWA4Y/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected] <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/beagleboard/74f11351-c0c4-496a-b6cc-b7b007386e61%40googlegroups.com >> >> <https://groups.google.com/d/msgid/beagleboard/74f11351-c0c4-496a-b6cc-b7b007386e61%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. 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