Re: MTT4BT Digipeater, weather station, Beacon, and Message issues....
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The MTT4BT starts in a bootloader that communicates at 19200 baud (now on either port as of recent firmware).
The ABAUD and BBAUD values are used to set the port speed after the bootloader (after finishing the "Hit Escape 3 times message" and going into the normal "run mode").? Everyone who has used any interface successfully at rates less than 19200 can confirm this is working, as has been since initial TT4 versions.
There is not much information about the Peet weather station interface.? The TT4 firmware manual does not say whether the information the TT4 decodes is the direct serial or the 5-minute packet mode. From some other posts, there is a reference to "Peet $ULTW 52 character sentence".? I place a good bet that, that is the decoded format.
? from your previous post, you show? $ULTW00B2000402A2060C----000086A00001----00E9034300020032
Putting the 2 threads together, it sounds to me like you want the Peet to be in Packet Mode.
?
Robert Giuliano KB8RCO
On Saturday, September 25, 2021, 11:35:21 PM EDT, KJ7AZ <tim81499@...> wrote:
[Edited Message Follows]
Here is something I noticed which may or may not be of use. This concerns Abaud and Bbaud. Setting Abaud and Bbaud to 2400 causes the TT4 unit to transmit a continuous string of hexadecimal weather packets. Even though the TNC is set to 2400 you still need to use 19200 to log into it TeraTerm. I'm assuming that's the USB cables doing BUT..... Logging into the TT3 using the same cable requires 2400 baud. Checking the Abaud and Bbaud after logging into the TT4 still shows both set to 2400. What I'm wondering is if there may be a flaw of some kind that causes the TT4 to switch baud rates internally without changing the command. The Peet equipment sends data at 2400 baud. Maybe the TT4 just isn't on the right baud rate or bit rate. 2400, 8, 1 null... Finally, the Peet weather stations have a packet mode. I might take a try and see if something can be done with that. Rather than sending data every second it sends every 5 minutes. Packet mode is a longer packet but who knows, might get lucky.
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