HamShield

We have written a very powerful sketch for Arduino called HamShield Serial Mode. This allows you to control your HamShield using any serial interface, including a computer over USB. This can be helpful when using one of the Chrome applications.

With the exception of some special commands, all serial commands are terminated with a semicolon ; and does not require any carriage return, line feed, etc. (ie: no new lines or enter keys required). The command is executed immediately after the reception of the ; character and waits for the next command.

Commands are not echoed to the sender. Only status responses are provided back over the serial port.

HamShield Serial Interface Commands

Mode	ASCII	Description
Transmit	[Spacebar]	Space must be received at least every 500 milliseconds
Receive Mode	[None]	If nothing is received or the transmit times out after 500 ms, unit goes into receive mode
CTCSS In	A[tone];	Tone must be numerical ASCII with decimal point indicating CTCSS receive tone required to unsquelch. "0" disables mode.
CTCSS Out	B[tone];	Tone must be numerical ASCII with decimal point indicating CTCSS transmit tone. "0" disables mode.
CTCSS Enable	C[state];	Turns on CTCSS mode (analog tone) with 1, off with 0.
CDCSS Enable	D[state];	Turns on CDCSS mode (digital tone) with 1, off with 0.
Bandwidth	E[mode];	For 12.5KHz mode: 0, for 25KHz: 1
Frequency	F[freq];	Set the frequency in KHz. If offset is disabled, this is the transmit frequency
CDCSS In	G[code];	Code must be a valid CDCSS code
CDCSS Out	H[code];	Code must be a valid CDCSS code
Print Config	I	Print out all configurations in comma delimited format.
Power Level	P[level];	Set power amp level, 0 = lowest, 15 = highest
Enable Offset	R[state];	1 turns on repeater offset mode, 0 turns off repeater offset mode
Squelch	S[level];	Set the squelch level
TX Offset	T[freq];	The absolute frequency of the repeater offset to transmit on in KHz
Volume	V[level];	Set the volume level of the receiver
Reset	X	Reset all settings to default
Sleep	Z	Sleep radio
Filters	@[state];	Set bit to enable, clear bit to disable: 0 = pre/de-emphasis, 1 = high pass filter, 2 = low pass filter (default: ascii 7, all enabled)
Vox mode	$[state];	0 = vox off, >= 1 audio sensitivity. lower value more sensitive
Mic Channel	*[state];	Set the voice channel. 0 = signal from mic or arduino, 1 = internal tone generator
RSSI	?	Respond with the current receive level in - dBm (no sign provided on numerical response)
Tone Gen	%[notes]	To send a tone, use the following format: Single tone: %1,[freq],[length]; Dual tone: %2,[freq],[freq],[length]; DTMF: %3,[key],[length];
Voice Level	^	Respond with the current voice level (VSSI)