It is a true FTDI adapter as best as I can tell, as it works perfectly on 
Windows machines with the FTDI drivers. I have other adapters that have 
been nightmares with drivers, so I agree with your point!

On Tuesday, January 2, 2018 at 9:18:24 PM UTC-7, Craig Thom wrote:
>
> Have you used this FTDI adapter in other situations or a different one?
>
> I ask because there are apparently lots of counterfeit FTDI chips out 
> there.  
>
> On Tuesday, January 2, 2018 at 10:33:25 PM UTC-5, Terry Hock wrote:
>>
>> Hi,
>>    I am trying to get the Peet Brothers Ultimeter 2100 working *reliably*. 
>> The issues appears to be the serial-USB converter. The system can run 
>> flawless for hours or at other times no more than 10 minutes and then weewx 
>> stops updating. I have previously used an Accurite weather station with no 
>> issues, so I am only changing the driver by using wee_config.
>>
>> Looking at the syslog file I get the following messages:
>> ultimeter: driver version is 0.18
>> ultimeter: using serial port /dev/tty/USB0
>> import of driver failed: [Errorno2] could not open port /dev/ttyUSB0: 
>> [Errorno2] no such file or directory: '/dev/ttyUSB0'
>> engine: unable to load driver: [Errorno2] could not open port 
>> /dev/ttryUSB0: no such file or directory: '/dev/ttyUSB0'
>>   **** Exiting. . .
>>
>>
>> The USB-serial converter is an FTDI , which in the past I have found to 
>> very reliable.
>> weewx version: 3.7.1
>> Raspberry Pi 2
>>
>> Any help is greatly appreciated!
>> Terry
>>
>>
>>
>>

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