I need to correct myself. The cabled serial output should be available on the RJ11 connector if an ADM3483 TTL-RS422 converter chip is installed on the wireless ISS. See this thread on wxforum: http://www.wxforum.net/index.php?topic=18656 (see also: http://www.wxforum.net/index.php?topic=28530.0)
However, you only need the 3.3V serial output from the MCU on the board (no need for the converter chip), which is apparently routed to pin 4 of the converter chip pads for easy soldered access. So you can just get normal TTL serial data out of there and forward it to your decoding appliance/code/weewx driver/whatever remotely. This approach is also interesting when trying to use a SIM board not made for a certain region. A smart little hack and we have a wifi/lora transmitter... OK, there are a few assumptions since I've never tried this, and the OP in the above forum thread never left feedback on success or failure. But I think it's worth a try. On Tuesday, May 28, 2019 at 11:02:44 AM UTC+2, kobuki wrote: > > That might provide a working solution, if the console port indeed dumps > the data packets (I remembered it does, but right now I'm not entirely > sure). If it does, it should RS422 signaling. I'm not sure if it can be > used to wake up your module without losing the first few data bytes of the > 10 for a packet, but if it has uA power modes where it can listen on a > serial port, it might be a viable approach. The data packets are identical > to the ones used by the radio protocol, and there are interpreters for that > in several languages, including C++ for Arduino, python, etc. Maybe the > simplest is to relay the packets to the remote station and let it process > them. > > On Tuesday, May 28, 2019 at 2:45:10 AM UTC+2, John wrote: >> >> Maybe hook up to the console connector then. That would upgrade both my >> active station and perhaps salvage the old one as well. Does the console >> connector provide a buffer for the data stream so that I could just have >> the ULP wake up the ESP32, read out the data buffer, write to the SD, >> transmit, and go back to sleep? >> > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/2707c599-b255-4a17-a485-c714956e911b%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
