Hi Ted
weewx can't catch the sensor array data
via the interceptor driver as the WH2902C is an Ambient modified
piece.
It cannot send to a customized server using the Ecowitt protocol.
Maybe it works with the WU protocol, but
haven't heard of it. If it were a non-Anbient Fine Offset clone,
it would work with the Ecowitt protocol/custom server.
But, honestly, as Bill suggested,
investing some 30 USD in an Ecowitt GW1000 console is many times
worth the money.
Also, if/when later, you want to extend
your sensor "fleet". Just make sure to get the model compatible
with your sensor frequency
- I assume 915 MHz.
The weewx GW1000 API driver is a proven
piece which works flawlessly
(when installed properly 😉, but that's
always so ...)
If you don't know it yet, there's a lot
on Wxforum.net about it, e.g.