The RPi0W is considerably slower than the RPI3B+, I am not even totally sure it will work on a ZeroW, but your error is weird / I'd expect something more explicit. Have you tried to tune timeout for your Vantage driver ? I don't have this driver personally, but if there's any timeout: increate it to leave more time to ZeroW to cope with things. And increase the loop_interval also to provide less packets to the ZeroW. Then, maybe, it will have enough time to process the incoming packet, and then get_data_with_crc16 will receive all its expected bytes, and everybody is happy :) Worth a try.
-- Axelle. On Monday, October 10, 2022 at 2:40:14 PM UTC+2 Your Name Here wrote: > I have been running WeeWX on a Pi3B+ for quite a while with few problems. > I decided to reclaim it for other projects and put my Pi0W in its place. I > have the serial logger with Davis cabling to their RJ11/RS-232 adapter > which is plugged into a Keyspan USA-19hs serial adapter. > > Although I could use [wee_device --current] successfully (and other > similar commands), the main program was not successful. > > Oct 9 15:42:02 pi3 weewx[1707] INFO __main__: retrying... > Oct 9 15:42:03 pi3 weewx[1707] INFO __main__: Using configuration file > /etc/weewx/weewx.conf > Oct 9 15:42:03 pi3 weewx[1707] INFO __main__: Debug is 0 > Oct 9 15:42:03 pi3 weewx[1707] INFO weewx.engine: Loading station type > Vantage (weewx.drivers.vantage) > Oct 9 15:42:03 pi3 weewx[1707] INFO weewx.engine: StdConvert target unit > is 0x1 > Oct 9 15:42:04 pi3 weewx[1707] INFO weewx.engine: Archive will use data > binding wx_binding > Oct 9 15:42:04 pi3 weewx[1707] INFO weewx.engine: Record generation will > be attempted in 'hardware' > Oct 9 15:42:04 pi3 weewx[1707] INFO weewx.engine: Using archive interval > of 60 seconds (specified by hardware) > Oct 9 15:42:04 pi3 weewx[1707] INFO __main__: Starting up weewx version > 4.5.1 > Oct 9 15:42:04 pi3 weewx[1707] INFO weewx.engine: Clock error is 0.73 > seconds (positive is fast) > Oct 9 15:42:04 pi3 weewx[1707] INFO weewx.engine: Using binding > 'wx_binding' to database 'weewx' > Oct 9 15:42:04 pi3 weewx[1707] INFO weewx.manager: Starting backfill of > daily summaries > Oct 9 15:42:04 pi3 weewx[1707] INFO weewx.manager: Daily summaries up to > date > Oct 9 15:42:09 pi3 weewx[1707] ERROR weewx.drivers.vantage: DMPAFT try > #1; error: Timeout in get_data_with_crc16 > Oct 9 15:42:14 pi3 weewx[1707] ERROR weewx.drivers.vantage: DMPAFT try > #2; error: Timeout in get_data_with_crc16 > Oct 9 15:42:19 pi3 weewx[1707] ERROR weewx.drivers.vantage: DMPAFT try > #3; error: Timeout in get_data_with_crc16 > Oct 9 15:42:24 pi3 weewx[1707] ERROR weewx.drivers.vantage: DMPAFT try > #4; error: Timeout in get_data_with_crc16 > Oct 9 15:42:24 pi3 weewx[1707] ERROR weewx.drivers.vantage: DMPAFT max > tries (4) exceeded. > Oct 9 15:42:24 pi3 weewx[1707] INFO weewx.engine: Main loop exiting. > Shutting engine down. > Oct 9 15:42:25 pi3 weewx[1707] CRITICAL __main__: Caught WeeWxIOError: > Max tries exceeded while getting archive data. > Oct 9 15:42:25 pi3 weewx[1707] CRITICAL __main__: **** Waiting 60 > seconds then retrying... > > I updated everything, including WeeWX, but still couldn't get it to work. > I swapped out my USB cable for one with ferrite cores on both ends and a > different Davis cable. I also moved it from my console to Envoy. I turned > on debugging. > > Oct 9 19:23:58 pi3 weewx[999] INFO __main__: Initializing weewx version > 4.8.0 > Oct 9 19:23:58 pi3 weewx[999] INFO __main__: Using Python 3.7.3 (default, > Jan 22 2021, 20:04:44) #012[GCC 8.3.0] > Oct 9 19:23:58 pi3 weewx[999] INFO __main__: Platform > Linux-5.10.103+-armv6l-with-debian-10.13 > Oct 9 19:23:58 pi3 weewx[999] INFO __main__: Locale is 'C.UTF-8' > Oct 9 19:23:58 pi3 weewx[999] INFO __main__: Using configuration file > /etc/weewx/weewx.conf > Oct 9 19:23:58 pi3 weewx[999] INFO __main__: Debug is 1 > Oct 9 19:23:58 pi3 weewx[999] INFO __main__: PID file is > /var/run/weewx.pid > Oct 9 19:23:59 pi3 weewx[1003] DEBUG __main__: Initializing engine > Oct 9 19:23:59 pi3 weewx[1003] INFO weewx.engine: Loading station type > Vantage (weewx.drivers.vantage) > Oct 9 19:23:59 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Driver > version is 3.2.3 > Oct 9 19:23:59 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Option > loop_request=1 > Oct 9 19:23:59 pi3 weewx[989]: Starting weewx weather system: weewx. > Oct 9 19:23:59 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Opened up > serial port /dev/ttyUSB0; baud 19200; timeout 8.00 > Oct 9 19:23:59 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Gentle wake > up of console successful > Oct 9 19:23:59 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Hardware type > is 16 > Oct 9 19:23:59 pi3 weewx[1003] DEBUG weewx.drivers.vantage: ISS ID is 1 > Oct 9 19:23:59 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Hardware > name: Vantage Pro2 > Oct 9 19:23:59 pi3 weewx[1003] DEBUG weewx.engine: Loading service > weewx.engine.StdTimeSynch > Oct 9 19:23:59 pi3 weewx[1003] DEBUG weewx.engine: Finished loading > service weewx.engine.StdTimeSynch > Oct 9 19:23:59 pi3 weewx[1003] DEBUG weewx.engine: Loading service > weewx.engine.StdConvert > Oct 9 19:23:59 pi3 weewx[1003] INFO weewx.engine: StdConvert target unit > is 0x1 > Oct 9 19:23:59 pi3 weewx[1003] DEBUG weewx.engine: Finished loading > service weewx.engine.StdConvert > Oct 9 19:23:59 pi3 weewx[1003] DEBUG weewx.engine: Loading service > weewx.engine.StdCalibrate > Oct 9 19:23:59 pi3 weewx[1003] DEBUG weewx.engine: Finished loading > service weewx.engine.StdCalibrate > Oct 9 19:23:59 pi3 weewx[1003] DEBUG weewx.engine: Loading service > weewx.engine.StdQC > Oct 9 19:23:59 pi3 weewx[1003] DEBUG weewx.engine: Finished loading > service weewx.engine.StdQC > Oct 9 19:23:59 pi3 weewx[1003] DEBUG weewx.engine: Loading service > weewx.wxservices.StdWXCalculate > Oct 9 19:23:59 pi3 weewx[1003] INFO weewx.wxservices: StdWXCalculate will > use data binding wx_binding > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.manager: Daily summary version > is 1.0 > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.engine: Finished loading > service weewx.wxservices.StdWXCalculate > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.engine: Loading service > weewx.wxxtypes.StdWXXTypes > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.engine: Finished loading > service weewx.wxxtypes.StdWXXTypes > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.engine: Loading service > weewx.wxxtypes.StdPressureCooker > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.engine: Finished loading > service weewx.wxxtypes.StdPressureCooker > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.engine: Loading service > weewx.wxxtypes.StdRainRater > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.engine: Finished loading > service weewx.wxxtypes.StdRainRater > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.engine: Loading service > weewx.wxxtypes.StdDelta > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.engine: Finished loading > service weewx.wxxtypes.StdDelta > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.engine: Loading service > weewx.engine.StdArchive > Oct 9 19:24:00 pi3 weewx[1003] INFO weewx.engine: Archive will use data > binding wx_binding > Oct 9 19:24:00 pi3 weewx[1003] INFO weewx.engine: Record generation will > be attempted in 'hardware' > Oct 9 19:24:00 pi3 weewx[1003] INFO weewx.engine: Using archive interval > of 60 seconds (specified by hardware) > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.engine: Use LOOP data in > hi/low calculations: 1 > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.engine: Finished loading > service weewx.engine.StdArchive > Oct 9 19:24:00 pi3 weewx[1003] INFO __main__: Starting up weewx version > 4.8.0 > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Gentle wake > up of console successful > Oct 9 19:24:00 pi3 weewx[1003] INFO weewx.engine: Clock error is 0.67 > seconds (positive is fast) > Oct 9 19:24:00 pi3 weewx[1003] INFO weewx.engine: Using binding > 'wx_binding' to database 'weewx' > Oct 9 19:24:00 pi3 weewx[1003] INFO weewx.manager: Starting backfill of > daily summaries > Oct 9 19:24:00 pi3 weewx[1003] INFO weewx.manager: Daily summaries up to > date > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Getting > archive packets since 2022-10-08 16:45:00 CDT (1665265500) > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Gentle wake > up of console successful > Oct 9 19:24:00 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Retrieving 23 > page(s); starting index= 0 > Oct 9 19:24:08 pi3 weewx[1003] DEBUG weewx.drivers.vantage: > Get_data_with_crc16; try #1 failed: Expected to read 267 chars; got 238 > instead > Oct 9 19:24:08 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Timeout in > get_data_with_crc16 > Oct 9 19:24:08 pi3 weewx[1003] ERROR weewx.drivers.vantage: DMPAFT try > #1; error: Timeout in get_data_with_crc16 > Oct 9 19:24:08 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Getting > archive packets since 2022-10-08 16:45:00 CDT (1665265500) > Oct 9 19:24:08 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Gentle wake > up of console successful > Oct 9 19:24:08 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Retrieving 23 > page(s); starting index= 0 > Oct 9 19:24:16 pi3 weewx[1003] DEBUG weewx.drivers.vantage: > Get_data_with_crc16; try #1 failed: Expected to read 267 chars; got 240 > instead > Oct 9 19:24:16 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Timeout in > get_data_with_crc16 > Oct 9 19:24:16 pi3 weewx[1003] ERROR weewx.drivers.vantage: DMPAFT try > #2; error: Timeout in get_data_with_crc16 > Oct 9 19:24:16 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Getting > archive packets since 2022-10-08 16:45:00 CDT (1665265500) > Oct 9 19:24:16 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Gentle wake > up of console successful > Oct 9 19:24:16 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Retrieving 23 > page(s); starting index= 0 > Oct 9 19:24:24 pi3 weewx[1003] DEBUG weewx.drivers.vantage: > Get_data_with_crc16; try #1 failed: Expected to read 267 chars; got 241 > instead > Oct 9 19:24:24 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Timeout in > get_data_with_crc16 > Oct 9 19:24:24 pi3 weewx[1003] ERROR weewx.drivers.vantage: DMPAFT try > #3; error: Timeout in get_data_with_crc16 > Oct 9 19:24:24 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Getting > archive packets since 2022-10-08 16:45:00 CDT (1665265500) > Oct 9 19:24:24 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Gentle wake > up of console successful > Oct 9 19:24:25 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Retrieving 23 > page(s); starting index= 0 > Oct 9 19:24:33 pi3 weewx[1003] DEBUG weewx.drivers.vantage: > Get_data_with_crc16; try #1 failed: Expected to read 267 chars; got 228 > instead > Oct 9 19:24:33 pi3 weewx[1003] DEBUG weewx.drivers.vantage: Timeout in > get_data_with_crc16 > Oct 9 19:24:33 pi3 weewx[1003] ERROR weewx.drivers.vantage: DMPAFT try > #4; error: Timeout in get_data_with_crc16 > Oct 9 19:24:33 pi3 weewx[1003] ERROR weewx.drivers.vantage: DMPAFT max > tries (4) exceeded. > > After far too many hours (7+), I finally decided to revert to the Pi3B+ > and was rather surprised to see it working correctly. > > It appears that others are successful with the Pi Zero W so I'm wondering > if someone can help me get mine working. > > Thanks. > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. 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