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jaques / sht21_python

Python library for reading data over i2c (tested on raspberry pi)
MIT License
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AttributeError: 'int' object has no attribute 'write_byte' #10

Open texasbobs opened 7 years ago

texasbobs commented 7 years ago

When I run sht21.py alone, it completes and prints the proper values. When I run it with the sample in the readme, I get the attribute error. Being quite the noob, I'm not sure exactly how to fix that. Any guidance would be appreciated.

Traceback (most recent call last): File "wx-02.py", line 2, in with sht21.SHT21(1) as sht21: File "/home/pi/wx/sht21.py", line 20, in init self.bus.write_byte(self._I2C_ADDRESS, self._SOFTRESET) AttributeError: 'int' object has no attribute 'write_byte'

texasbobs commented 7 years ago

Actually I did edit the usage sample to point to bus 1.

This is what I'm running that generates the error.

import sht21 with sht21.SHT21(1) as sht21: print "Temperature: %s"%sht21.read_temperature() print "Humidity: %s"%sht21.read_humidity()

texasbobs commented 7 years ago

After playing around, It was able to get the following to work. Is the usage sample wrong or am I doing something else wrong?

import sht21 import smbus

bus = smbus.SMBus(1) with sht21.SHT21(bus) as sht21: print "Temperature: %s"%sht21.read_temperature() print "Humidity: %s"%sht21.read_humidity()