BTECH UV PRO - Initial support for connecting to the Bluetooth serial device on the BTECH UV PRO.

overlay/etc/skel/notes/btech-uv-pro.md

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+# BTECH UV Pro Bluetooth TNC Notes
+
+## Linux Packet Configuration
+
+Edit `/etc/ax25/axports` has root and add the following line.
+
+```
+PKT1200 KT7RUN 1200 255 2 145.710
+```
+
+## Radio Configuration
+
+* KISS TNC > Enable KISS TNC = checked
+
+## Pair Radio and Computer
+
+1. On the radio, start the pairing process by navigating to 
+   Menu > Pairing.
+
+2. 
+ 
+3. On the computer, run `bluetoothctl`
+
+```
+> power on
+> scan on
+> pair 38:D2:00:00:ED:C8
+> trust 38:D2:00:00:ED:C8
+> quit
+```
+
+## If you're already paired
+
+1. Kill any instances of rfcomm if they are running
+
+```
+sudo killall rfcomm
+```
+
+2. 
+
+```
+$ sudo rfcomm connect /dev/rfcomm0 38:D2:00:00:ED:C8
+Connected /dev/rfcomm0 to 38:D2:00:00:ED:C8 on channel 1
+Press CTRL-C for hangup
+```
+
+3. In another window, check that you are connected.
+
+```
+bluetoothctl info 38:D2:00:00:ED:C8 | grep Connected | awk '{print $2}'
+```
+
+4. Kill any instances of kissattach if they are running.
+
+```
+sudo killall kissattach
+```
+
+5. Attach to the desired AX.25 port.
+
+```
+$ sudo kissattach /dev/rfcomm0 PKT1200
+AX.25 port PKT1200 bound to device ax0
+```
+
+6. Connect to the BBS
+
+```
+axcall PKT1200 TTPBBS
+```
+
+Listen to incoming and outgoing packets and capture the time
+stamps for the traffic.
+
+```
+$ sudo axlisten -a -t
+```
+
+## Troubleshooting
+
+1. systemctl status  bluetooth