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Remote Protocol
🕑 Added 2025-11-10 17:23:02 +0000 UTCBy request, here is the nicFW880 remote protocol
Remote Activation
To begin send the "Change BAUD" sequence at 38400 baud
0xaa
0x70
[4 bytes little endian, New BAUD rate]
The radio will acknowledge with
0x70
at this point change the host's BAUD rate to match. 100ms later the radio will send another acknowledge at the new BAUD rate
0x70
Now send the "Start Remote" sequence.
0xAA
0x51
Remote operation is now active.
Remote Operation
The host must every second send a PING byte
0xAA
the radio will acknowledge this (PONG) with the same byte
0xAA
HOST to RADIO commands.
These are single byte commands and are NOT acknowledged.
0x13 - PTT pressed
0xFE - PTT Released
0x00 to 0x12 - Keypad key pressed
0xFF - Keypad key released
0x52 - Exit remote
RADIO to HOST commands.
Draw Text
0x02 = Packet signature
[1 byte] = Screen X coordinate
[2 bytes little endian] = Screen Y coordinate
[1 byte] = Font Number
0x00 = 8x8 ASCII Font
0x01 = 8x16 ASCII Font
0x02 = 16x16 ASCII Font
0x03 = 16x24 ASCII Font
0x04 = 24x24 ASCII Font
0x05 = 24x32 ASCII Font
0x06 = 16x16 Symbols Font
[2 bytes] = RGB565 background colour
[2 bytes] = RGB565 foreground colour
[variable bytes] Null terminated ASCII text
Draw Rectangle
0x01 = Packet signature
[1 byte] = Screen X coordinate
[2 bytes little endian] = Screen Y coordinate
[1 byte] = Width
[2 bytes little endian] = Height
[2 bytes] = RGB565 colour
Comments
Marcus Dudley
no. If Audio streaming were a thing I would have said so in this post.
Marcus Dudley
It's a remote, nothing more. What you're talking about is CAT, which is a totally different thing.
Daniel
Is rx/tx of audio over usb already possible? If so, how is it implemented? Are audio samples sent in chunks and between the chunks the radio/host listen/respond for/to other commands?
Daniel
That's great, thank you! Are you planning to add commands for the various functions like go to VFO/channel/group mode, start scanning, stop scanning, set frequency, etc?
