vp2 - how to disable ch2?

[Graham Eddy]

my old vantage pro2’s additional wireless temp station at ch2 (iss is at ch1) has carked it (crushed in tree fall). it exists no more; it is not transmitting. my vp2 data logger is faithfully reporting a phantom value of about 150 C (not bad for a river!) every few seconds, how do i disable this phantom?

i tried (with weewx not running) ‘wee_device --set-transmitter-type=2,10’ to set ch2 to none, but all i get is an error ‘No <ACK> received from Vantage console’, and it continues reporting the phantom when i start weewx again. how can i stop this phantom?

cheers

[Stephen Hocking]

Given such a whacko figure, perhaps under the [[Corrections]] section under [StdCalibrate], or more suitably, something under [StdQC].

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[Graham Eddy]

QC is filtering out the bad values, but weewx server is currently resetting after 4 failed retries on regular basis while the phantom station haunts the vp2. there is no radio signal being transmitted to provide the extraTemp1 values, it is just a figment of data logger’s imagination. the phantom battery-low apparently from the ex-station stopped yesterday, but the data logger is still reporting the extraTemp1 despite my (failed) wee_device instruction just now to desist

i do ‘wee_device —set-transmitter-type=2,10’ and it gives ’no <ack>’ error.

then i do ‘wee_device —info’ and it reports ch2 still enabled

so it is not just a case of resetting memory/power

weewx v4.5.1 using python3.7 on RPi 4B running buster with usb/serial

(vp2 firmware is from 2004. lately weewx has been resetting whenever the (now ex-) extra station reported low battery, so this bogus extraTemp1 value upsetting weewx is kinda understandable → i need to turn all vestiges of the (ex-) extra station off)

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[Stephen Hocking]

An alternative might be to use a different driver - does rtl_433 pick up its transmissions? If so, using the SDR driver could work, and you wouldn't have weewx resetting after failed USB comms.

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[gjr80]

Can't you set transmitter IDs manually via the console?

Gary

[Graham Eddy]

data logger is in an envoy

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[gjr80]

Doesn't leave many options. Can't power down/reset the envoy?

Gary

[Graham Eddy]

i can power down, pull it apart, put the batteries in backwards. how do i reset it?

(and why would wee_device be failing to reconfigure ch2 but work successfully otherwise?)

[gjr80]

I don't have an Envoy but I understand it is a case of removing all power sources, including batteries, waiting for 10-20 seconds for any capacitance to discharge and then power up again. Don't know I would put the batteries in reverse though.

Gary

[Graham Eddy]

did that - envoy has now forgotten the old wireless station [RESOLVED] - thanks

it has been a lot of years since the envoy was last unpowered!

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