Weewx can't open USB port on Raspberry Pi

[Michael Wall]

I have tried over the past few days to get weewx running on a Raspberry Pi 3 to read from my Davis Vantage Vue weather station. My Vantage console has a serial output port set to 9600 baud. It then goes through a serial to USB converter using a Prolific chip set. This configuration works well going into a USB port on my PC running Win10 and using the Davis WeatherLink software. I noticed in the attached Pi console view that the Pi wants to put the USB connection to ttyUSB1 so I edited the weewx.conf file to use the ttyUSB1 port. I think you can see all this on the attached screen view. As you see weewx fails to see the Vantage port, I think.

What should I do to correct this problem or should I wait a few hours and see what happens?

Thanks for your help.

Michael

Mar 15 11:13:51 raspberrypi kernel: [ 5124.813251] usb 1-1.2.3: new full-speed USB device number 18 using dwc_otg

Mar 15 11:13:51 raspberrypi kernel: [ 5124.915414] usb 1-1.2.3: New USB device found, idVendor=067b, idProduct=2303

Mar 15 11:13:51 raspberrypi kernel: [ 5124.915439] usb 1-1.2.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0

Mar 15 11:13:51 raspberrypi kernel: [ 5124.915453] usb 1-1.2.3: Product: USB-Serial Controller D

Mar 15 11:13:51 raspberrypi kernel: [ 5124.915465] usb 1-1.2.3: Manufacturer: Prolific Technology Inc. 

Mar 15 11:13:51 raspberrypi kernel: [ 5124.916658] pl2303 1-1.2.3:1.0: pl2303 converter detected

Mar 15 11:13:51 raspberrypi kernel: [ 5124.920741] usb 1-1.2.3: pl2303 converter now attached to ttyUSB1

Mar 15 11:13:51 raspberrypi systemd-udevd[3478]: failed to execute '/lib/udev/mtp-probe' 'mtp-probe /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2/1-1.2.3 1 18': No such file or directory

Mar 15 11:14:06 raspberrypi systemd[1]: Starting LSB: weewx weather system...

Mar 15 11:14:06 raspberrypi weewx[3515]: engine: Initializing weewx version 3.7.0

Mar 15 11:14:06 raspberrypi weewx[3515]: engine: Using Python 2.7.9 (default, Sep 17 2016, 20:26:04) #012[GCC 4.9.2]

Mar 15 11:14:06 raspberrypi weewx[3515]: engine: Platform Linux-4.4.50-v7+-armv7l-with-debian-8.0

Mar 15 11:14:06 raspberrypi weewx[3515]: engine: Locale is 'en_US.UTF-8'

Mar 15 11:14:06 raspberrypi weewx[3515]: engine: pid file is /var/run/weewx.pid

Mar 15 11:14:06 raspberrypi weewx[3519]: engine: Using configuration file /etc/weewx/weewx.conf

Mar 15 11:14:06 raspberrypi weewx[3519]: engine: debug is 1

Mar 15 11:14:06 raspberrypi weewx[3519]: engine: Initializing engine

Mar 15 11:14:06 raspberrypi weewx[3519]: engine: Loading station type Vantage (weewx.drivers.vantage)

Mar 15 11:14:06 raspberrypi weewx[3519]: vantage: driver version is 3.0.10

Mar 15 11:14:06 raspberrypi weewx[3504]: Starting weewx weather system: weewx.

Mar 15 11:14:06 raspberrypi systemd[1]: Started LSB: weewx weather system.

Mar 15 11:14:06 raspberrypi weewx[3519]: vantage: Opened up serial port /dev/ttyUSB1; baud 9600; timeout 4.00

Mar 15 11:14:10 raspberrypi weewx[3519]: vantage: retry  #0 failed

Mar 15 11:14:14 raspberrypi weewx[3519]: vantage: retry  #1 failed

Mar 15 11:14:18 raspberrypi weewx[3519]: vantage: retry  #2 failed

Mar 15 11:14:22 raspberrypi weewx[3519]: vantage: retry  #3 failed

Mar 15 11:14:22 raspberrypi weewx[3519]: vantage: Unable to wake up console

Mar 15 11:14:22 raspberrypi weewx[3519]: import of driver failed: Unable to wake up Vantage console (<class 'weewx.WakeupError'>)

Mar 15 11:14:23 raspberrypi weewx[3519]: engine: Unable to load driver: Unable to wake up Vantage console

Mar 15 11:14:23 raspberrypi weewx[3519]:     ****  Exiting...

[Michael Wall]

I found my error and now weewx is working.

Michael