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dhylands / python_lcd

Python based library for talking to character based LCDs.
MIT License
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IOError: File not found #1

Open pawisoon opened 9 years ago

pawisoon commented 9 years ago

So I got this error while trying to use your lib. I suppose this is because Beaglebone black doesn't have device tree enabled. Do you know how to solve it?

Cheers Paul 

debian@arm:~/python_lcd$ sudo python lcd/i2c_lcd.py
Traceback (most recent call last):
  File "lcd/i2c_lcd.py", line 125, in <module>
    test_main()
  File "lcd/i2c_lcd.py", line 93, in test_main
    lcd = I2cLcd(1, 0x27, 2, 16)
  File "lcd/i2c_lcd.py", line 24, in __init__
    self.bus = smbus.SMBus(port)
IOError: [Errno 2] No such file or directory
dhylands commented 9 years ago

@pawisoon I haven't used my BeagleBone Black in a while.

IIRC, You should see /dev/i2c-X where X is the port number.

I found some information here: http://datko.net/2013/11/03/bbb_i2c/ but haven't done this myself, so I don't know if its correct or not.