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update dtmf, morse, and examples

This commit is contained in:
Morgan Redfield 2019-07-14 13:37:14 -07:00
parent 71acbbb975
commit 3d3f6a36b6
16 changed files with 727 additions and 331 deletions
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2
examples/AFSK_SerialMessenger/AFSK_SerialMessenger.ino
View File

@ -52,7 +52,7 @@ void setup() {
Serial.begin(9600);
radio.initialize();
radio.frequency(145570);
radio.frequency(144390); // default aprs frequency in North America
radio.setRfPower(0);
radio.setVolume1(0xFF);
radio.setVolume2(0xFF);

2
examples/AppSerialController/AppSerialController.ino
View File

@ -36,7 +36,7 @@ void setup() {
Serial.println("Setting radio to its defaults..");
radio.initialize();
radio.setRfPower(0);
radio.frequency(146520);
radio.frequency(432100); // 70cm calling frequency
radio.setModeReceive();
}

9
examples/CTCSS/CTCSS.ino
View File

@ -75,13 +75,11 @@ void setup() {
radio.initialize(); // initializes automatically for UHF 12.5kHz channel
Serial.println("setting default Radio configuration");
radio.dangerMode();
// set frequency
Serial.println("changing frequency");
radio.setSQOff();
freq = 446000;
freq = 432100; // 70cm calling frequency
radio.frequency(freq);
// set to receive
@ -92,6 +90,11 @@ void setup() {
Serial.println(radio.readCtlReg());
Serial.println(radio.readRSSI());
// set up squelch
radio.setSQLoThresh(-80);
radio.setSQHiThresh(-70);
radio.setSQOn();
radio.setRfPower(0);
// CTCSS Setup code

67
examples/DTMF/DTMF.ino
View File

@ -72,7 +72,7 @@ void setup() {
//radio.setSQOff();
Serial.println("setting frequency to: ");
freq = 432250;
freq = 432100; // 70cm calling frequency
radio.frequency(freq);
Serial.print(radio.getFrequency());
Serial.println("kHz");
@ -104,38 +104,18 @@ void setup() {
Serial.println("ready");
}
char rx_dtmf_buf[255];
int rx_dtmf_idx = 0;
void loop() {
// look for tone
if (radio.getDTMFSample() != 0) {
uint16_t code = radio.getDTMFCode();
rx_dtmf_buf[rx_dtmf_idx++] = code2char(code);
// reset after this tone
int j = 0;
while (j < 4) {
if (radio.getDTMFSample() == 0) {
j++;
} else {
j = 1;
}
delay(10);
}
// reset read
//radio.enableDTMFReceive();
} else if (rx_dtmf_idx > 0) {
rx_dtmf_buf[rx_dtmf_idx] = '\0'; // NULL terminate the string
Serial.println(rx_dtmf_buf);
rx_dtmf_idx = 0;
char m = radio.DTMFRxLoop();
if (m != 0) {
Serial.print(m);
}
// Is it time to send tone?
if (Serial.available()) {
// get first code
uint8_t code = char2code(Serial.read());
uint8_t code = radio.DTMFchar2code(Serial.read());
// start transmitting
radio.setDTMFCode(code); // set first
@ -151,7 +131,7 @@ void loop() {
delay(10);
}
if (Serial.available()) {
code = char2code(Serial.read());
code = radio.DTMFchar2code(Serial.read());
if (code == 255) code = 0xE; // throw a * in there so we don't break things with an invalid code
radio.setDTMFCode(code); // set first
} else {
@ -170,38 +150,3 @@ void loop() {
radio.setTxSourceMic();
}
}
uint8_t char2code(char c) {
uint8_t code;
if (c == '#') {
code = 0xF;
} else if (c=='*') {
code = 0xE;
} else if (c >= 'A' && c <= 'D') {
code = c - 'A' + 0xA;
} else if (c >= '0' && c <= '9') {
code = c - '0';
} else {
// invalid code, skip it
code = 255;
}
return code;
}
char code2char(uint16_t code) {
char c;
if (code < 10) {
c = '0' + code;
} else if (code < 0xE) {
c = 'A' + code - 10;
} else if (code == 0xE) {
c = '*';
} else if (code == 0xF) {
c = '#';
} else {
c = '?'; // invalid code
}
return c;
}

4
examples/FMBeacon/FMBeacon.ino
View File

@ -57,8 +57,8 @@ void setup() {
radio.setMorseFreq(600);
radio.setMorseDotMillis(100);
// Configure the HamShield to operate on 438.000MHz
radio.frequency(438000);
// Configure the HamShield
radio.frequency(432300); // 70cm beacon frequency
Serial.println("Radio Configured.");
}

4
examples/FoxHunt/FoxHunt.ino
View File

@ -61,8 +61,8 @@ void setup() {
radio.setMorseFreq(600);
radio.setMorseDotMillis(100);
// Configure the HamShield to operate on 438.000Mhz
radio.frequency(438000);
// Configure the HamShield frequency
radio.frequency(432400);
Serial.println("Radio configured.");
}

3
examples/HandyTalkie/HandyTalkie.ino
View File

@ -72,13 +72,12 @@ void setup() {
radio.initialize(); // initializes automatically for UHF 12.5kHz channel
Serial.println("setting default Radio configuration");
radio.dangerMode();
// set frequency
Serial.println("changing frequency");
radio.setSQOff();
freq = 446000;
freq = 432100; // 70cm calling frequency
radio.frequency(freq);
// set to receive

2
examples/HandyTalkie_nRF52840/HandyTalkie_nRF52840.ino
View File

@ -126,7 +126,7 @@ void setup() {
Serial.println("changing frequency");
radio.setSQOff();
freq = 446000;
freq = 432100; // 70cm calling frequency
radio.frequency(freq);
// set to receive

112
examples/Morse/Morse.ino
View File

@ -36,28 +36,9 @@
// Note that all timing is defined in terms of MORSE_DOT relative durations
// You may want to tweak those timings below
#define SYMBOL_END_TIME 5 //millis
#define CHAR_END_TIME (MORSE_DOT*2.7)
#define MESSAGE_END_TIME (MORSE_DOT*8)
#define MIN_DOT_TIME (MORSE_DOT-30)
#define MAX_DOT_TIME (MORSE_DOT+55)
#define MIN_DASH_TIME (MORSE_DOT*3-30)
#define MAX_DASH_TIME (MORSE_DOT*3+55)
HamShield radio;
uint32_t last_tone_check; // track how often we check for morse tones
uint32_t tone_in_progress; // track how long the current tone lasts
uint32_t space_in_progress; // track how long since the last tone
uint8_t rx_morse_char;
uint8_t rx_morse_bit;
bool bits_to_process;
char rx_msg[128];
uint8_t rx_idx;
// Run our start up things here
void setup() {
// NOTE: if not using PWM out, it should be held low to avoid tx noise
@ -93,68 +74,19 @@ void setup() {
radio.setMorseDotMillis(MORSE_DOT);
radio.lookForTone(MORSE_FREQ);
radio.setupMorseRx();
// Configure the HamShield to operate on 438.000MHz
radio.frequency(432000);
// Configure the HamShield frequency
radio.frequency(432100); // 70cm calling frequency
radio.setModeReceive();
Serial.println("Radio Configured.");
last_tone_check = millis();
space_in_progress = 0; // haven't checked yet
tone_in_progress = 0; // not currently listening to a tone
rx_morse_char = 0; // haven't found any tones yet
rx_idx = 0;
rx_morse_bit = 1;
bits_to_process = false;
}
void loop() {
// are we receiving anything
if (radio.toneDetected()) {
space_in_progress = 0;
if (tone_in_progress == 0) {
// start a new tone
tone_in_progress = millis();
//Serial.print('t');
}
} else {
// keep track of how long the silence is
if (space_in_progress == 0) space_in_progress = millis();
// we wait for a bit of silence before ending the last
// symbol in order to smooth out the detector
if ((millis() - space_in_progress) > SYMBOL_END_TIME)
{
if (tone_in_progress != 0) {
// end the last tone
uint16_t tone_time = millis() - tone_in_progress;
tone_in_progress = 0;
//Serial.println(tone_time);
handleTone(tone_time);
}
}
// we might be done with a character if the space is long enough
if (((millis() - space_in_progress) > CHAR_END_TIME) && bits_to_process) {
char m = parseMorse();
bits_to_process = false;
if (m != 0) {
rx_msg[rx_idx++] = m;
}
}
// we might be done with a message if the space is long enough
if ((millis() - space_in_progress) > MESSAGE_END_TIME) {
if (rx_idx > 0) {
// we got a message, print it now
rx_msg[rx_idx] = '\0'; // null terminate
Serial.println(rx_msg);
rx_idx = 0; // reset message buffer
}
rx_morse_char = 0;
rx_morse_bit = 1;
}
char rx_char = radio.morseRxLoop();
if (rx_char != 0) {
Serial.print(rx_char);
}
// should we send anything
@ -181,9 +113,9 @@ void loop() {
radio.morseOut(morse_buf);
// We're done sending the message, set the radio back into recieve mode.
Serial.println("sent");
radio.setModeReceive();
radio.lookForTone(MORSE_FREQ);
Serial.println("sent");
} else {
// If we get here, the channel is busy. Let's also print out the RSSI.
Serial.print("The channel was busy. RSSI: ");
@ -192,34 +124,4 @@ void loop() {
}
}
void handleTone(uint16_t tone_time) {
//Serial.println(tone_time);
if (tone_time > MIN_DOT_TIME && tone_time < MAX_DOT_TIME) {
// add a dot
//Serial.print(".");
bits_to_process = true;
//nothing to do for this bit position, since . = 0
} else if (tone_time > MIN_DASH_TIME && tone_time < MAX_DASH_TIME) {
// add a dash
//Serial.print("-");
bits_to_process = true;
rx_morse_char += rx_morse_bit;
}
// prep for the next bit
rx_morse_bit = rx_morse_bit << 1;
}
char parseMorse() {
// if morse_char is a valid morse character, return the character
// if morse_char is an invalid (incomplete) morse character, return 0
//if (rx_morse_bit != 1) Serial.println(rx_morse_char, BIN);
rx_morse_char += rx_morse_bit; // add the terminator bit
// if we got a char, then print it
char c = radio.morseReverseLookup(rx_morse_char);
rx_morse_char = 0;
rx_morse_bit = 1;
return c;
}

2
examples/SSTV_M1_Static/SSTV_M1_Static.ino
View File

@ -54,7 +54,7 @@ void setup() {
// Tell the HamShield to start up
radio.initialize();
radio.setRfPower(0);
radio.frequency(145500);
radio.frequency(446000);
// put your setup code here, to run once:
//dds.setReferenceClock(34965/4);
dds.start();

557
examples/SerialTransceiver/SerialTransceiver.ino
View File

@ -15,22 +15,32 @@
* R1;
* [Just a space]
// see also: https://github.com/EnhancedRadioDevices/HamShield/wiki/HamShield-Serial-Mode
Commands:
Mode ASCII Description Implemented
-------------- ----------- -------------------------------------------------------------------------------------------------------------------------------------------- -----------------
Transmit space Space must be received at least every 500 mS Yes
Receive not space If space is not received and/or 500 mS timeout of space occurs, unit will go into receive mode Yes
Bandwidth E<mode>; for 12.5KHz mode is 0, for 25KHz, mode is 1 No
Frequency F<freq>; Set the receive frequency in KHz, if offset is disabled, this is the transmit frequency No
Mode ASCII Description
-------------- ----------- --------------------------------------------------------------------------------------------------------------------------------------------
Transmit space Space must be received at least every 500 mS
Receive not space If space is not received and/or 500 mS timeout of space occurs, unit will go into receive mode
Frequency F<freq>; Set the receive frequency in KHz, if offset is disabled, this is the transmit frequency
Morse Out M<text>; A small buffer for morse code (32 chars)
Power level P<level>; Set the power amp level, 0 = lowest, 15 = highest No
Enable Offset R<state>; 1 turns on repeater offset mode, 0 turns off repeater offset mode No
Squelch S<level>; Set the squelch level No
TX Offset T<freq>; The absolute frequency of the repeater offset to transmit on in KHz No
RSSI ?; Respond with the current receive level in - dBm (no sign provided on numerical response) No
Voice Level ^; Respond with the current voice level (VSSI)
Morse In N; Sets mode to Morse In, listening for Morse
Power level P<level>; Set the 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
RSSI ? Respond with the current receive level in - dBm (no sign provided on numerical response)
Voice Level ^ Respond with the current voice level (VSSI), only valid when transmitting
DTMF Out D<vals>; A small buffer for DTMF out (only 0-9,A,B,C,D,*,# accepted)
DTMF In B; Sets mode to DTMF In, listening for DTMF
PL Tone Tx A<val>; Sets PL tone for TX, value is tone frequency in Hz (float), set to 0 to disable
PL Tone Rx C<val>; Sets PL tone for RX, value is tone frequency in Hz (float), set to 0 to disable
Volume 1 V1<val>; Set volume 1 (value between 0 and 15)
Volume 2 V2<val>; Set volume 2 (value between 0 and 15)
KISS TNC K; Move to KISS TNC mode (send ^; to move back to normal mode). NOT IMPELEMENTED YET
Normal Mode _ Move to Normal mode from any other mode (except TX)
Responses:
@ -42,23 +52,44 @@ Error X<code>; Indicates an error code. The numerical value is the type
Value :<value>; In response to a query
Status #<value>; Unsolicited status message
Debug Msg @<text>; 32 character debug message
Rx Msg R<text>; up to 32 characters of received message, only if device is in DTMF or Morse Rx modes
*/
// Note that the following are not yet implemented
// TODO: change get_value so it's intuitive
// TODO: Squelch open and squelch shut independently controllable
// TODO: pre/de emph filter
// TODO: walkie-talkie
// TODO: KISS TNC
#include "HamShield.h"
#define MIC_PIN 3
#define RESET_PIN A3
#define SWITCH_PIN 2
int state;
enum {TX, NORMAL, DTMF, MORSE, KISS};
int state = NORMAL;
bool rx_ctcss = false;
bool muted = false;
int txcount = 0;
long timer = 0;
long freq = 144390;
long tx = 0;
long timer = 0; // Transmit timer to track timeout (send space to reset)
long freq = 432100; // 70cm calling frequency, receive frequency and default transmit frequency
long tx_freq = 0; // transmit frequency if repeater is on
int pwr = 0; // tx power
char cmdbuff[32] = "";
int temp = 0;
int repeater = 0;
bool repeater = false; // true if transmit and receive operate on different frequencies
char pl_rx_buffer[32]; // pl tone rx buffer
char pl_tx_buffer[32]; // pl tone tx buffer
float ctcssin = 0;
float ctcssout = 0;
int cdcssin = 0;
@ -67,10 +98,8 @@ int cdcssout = 0;
HamShield radio;
void setup() {
// NOTE: if not using PWM out, it should be held low to avoid tx noise
// NOTE: if not using PWM out (MIC pin), it should be held low to avoid tx noise
pinMode(MIC_PIN, OUTPUT);
digitalWrite(MIC_PIN, LOW);
@ -80,7 +109,6 @@ void setup() {
// set up the reset control pin
pinMode(RESET_PIN, OUTPUT);
digitalWrite(RESET_PIN, HIGH);
delay(5); // wait for device to come up
Serial.begin(9600);
Serial.println(";;;;;;;;;;;;;;;;;;;;;;;;;;");
@ -90,137 +118,444 @@ void setup() {
Serial.print(result,DEC);
Serial.println(";");
radio.initialize(); // initializes automatically for UHF 12.5kHz channel
Serial.println("*START;");
radio.frequency(freq);
radio.setVolume1(0xF);
radio.setVolume2(0xF);
radio.setModeReceive();
radio.setTxSourceMic();
radio.setRfPower(0);
radio.setSQLoThresh(80);
radio.setRfPower(pwr);
radio.setSQLoThresh(-80);
radio.setSQHiThresh(-70);
radio.setSQOn();
Serial.println("*START;");
}
void loop() {
if(Serial.available()) {
int text = Serial.read();
int text = Serial.read(); // get the first char to see what the upcoming command is
switch (state) {
// we handle commands differently based on what state we're in
case 10:
if(text == 32) { timer = millis();}
case TX:
// we're currently transmitting
// if we got a space, reset our transmit timeout
if(text == ' ') { timer = millis();}
break;
case 0:
switch(text) {
case NORMAL:
switch(text) {
case ' ': // space - transmit
if(repeater == true && tx_freq != 0) { radio.frequency(tx_freq); }
muted = false; // can't mute (for PL tones) during tx
radio.setUnmute();
radio.setModeTransmit();
state = TX;
Serial.println("#TX,ON;");
timer = millis();
break;
case 32: // space - transmit
if(repeater == 1) { radio.frequency(tx); }
radio.setModeTransmit();
state = 10;
Serial.println("#TX,ON;");
timer = millis();
break;
case '?': // ? - RSSI
Serial.print(":");
Serial.print(radio.readRSSI(),DEC);
Serial.println(";");
break;
case 63: // ? - RSSI
Serial.print(":");
Serial.print(radio.readRSSI(),DEC);
Serial.println(";");
break;
case '^': // ^ - VSSI (voice) level
Serial.print(":");
Serial.print(radio.readVSSI(),DEC);
Serial.println(";");
break;
case 65: // A - CTCSS In
getValue();
ctcssin = atof(cmdbuff);
radio.setCtcss(ctcssin);
break;
case 'F': // F - frequency
getValue();
freq = atol(cmdbuff);
if(radio.frequency(freq) == true) {
Serial.print("@");
Serial.print(freq,DEC);
Serial.println(";!;");
} else {
Serial.println("X1;");
}
break;
case 66: // B - CTCSS Out
break;
case 'P': // P - power level
getValue();
temp = atol(cmdbuff);
radio.setRfPower(temp);
Serial.println("!;");
break;
case 67: // C - CTCSS Enable
break;
case 'S': // S - squelch
getValue();
temp = atol(cmdbuff);
if (temp < -2 && temp > -130) {
radio.setSQLoThresh(temp);
radio.setSQHiThresh(temp+2);
radio.setSQOn();
Serial.print(temp);
Serial.println("!;");
} else {
Serial.println("X!;");
}
break;
case 68: // D - CDCSS Enable
break;
case 'R': // R - repeater offset mode
getValue();
temp = atol(cmdbuff);
if(temp == 0) { repeater = 0; }
if(temp == 1) { repeater = 1; }
Serial.println("!;");
break;
case 70: // F - frequency
getValue();
freq = atol(cmdbuff);
if(radio.frequency(freq) == true) { Serial.print("@"); Serial.print(freq,DEC); Serial.println(";!;"); } else { Serial.println("X1;"); }
break;
case 'T': // T - transmit offset
getValue();
tx_freq = atol(cmdbuff);
Serial.println("!;");
break;
case 'M':
getValue();
radio.setModeTransmit();
delay(300);
radio.morseOut(cmdbuff);
state = 10;
break;
case 'M': // M - Morse
getValue();
if(repeater == true && tx_freq != 0) { radio.frequency(tx_freq); }
muted = false; // can't mute (for PL tones) during tx
radio.setUnmute();
radio.setModeTransmit();
delay(300);
radio.morseOut(cmdbuff);
if(repeater == true) { radio.frequency(freq); }
radio.setModeReceive();
Serial.println("!;");
break;
case 80: // P - power level
getValue();
temp = atol(cmdbuff);
radio.setRfPower(temp);
break;
case 'N': // N - set to Morse in Mode
morse_rx_setup();
state = MORSE;
Serial.println("!;");
break;
case 82: // R - repeater offset mode
getValue();
temp = atol(cmdbuff);
if(temp == 0) { repeater = 0; }
if(temp == 1) { repeater = 1; }
break;
case 'D': // D - DTMF Out
dtmfSetup();
getValue();
dtmf_out(cmdbuff);
Serial.println("!;");
break;
case 83: // S - squelch
getValue();
temp = atol(cmdbuff);
radio.setSQLoThresh(temp);
break;
case 'B': // B - set to DTMF in Mode
dtmfSetup();
radio.enableDTMFReceive();
state = DTMF;
Serial.println("!;");
break;
case 84: // T - transmit offset
getValue();
tx = atol(cmdbuff);
break;
case 'A': // A - TX PL Tone configuration command
pl_tone_tx();
Serial.println("!;");
break;
case 'C': // C - RX PL Tone configuration command
pl_tone_rx();
Serial.println("!;");
break;
case 94: // ^ - VSSI (voice) level
Serial.print(":");
Serial.print(radio.readVSSI(),DEC);
Serial.println(";");
case 'V': // V - set volume
getValue();
temp = cmdbuff[0];
if (temp == 0x31) {
temp = atol(cmdbuff + 1);
radio.setVolume1(temp);
Serial.println("!;");
} else if (temp == 0x32) {
temp = atol(cmdbuff + 1);
radio.setVolume2(temp);
Serial.println("!;");
} else {
// not a valid volume command
while (Serial.available()) { Serial.read(); }
Serial.println("X!;");
}
break;
case 'K': // K - switch to KISS TNC mode
//state = KISS;
//TODO: set up KISS
Serial.println("X1;");
break;
default:
// unknown command, flush the input buffer and wait for next one
Serial.println("X1;");
while (Serial.available()) { Serial.read(); }
break;
}
break;
break;
case KISS:
if (Serial.peek() == '_') {
state = NORMAL;
if (rx_ctcss) {
radio.enableCtcss();
muted = true; // can't mute (for PL tones) during tx
radio.setMute();
}
}
// TODO: handle KISS TNC
break;
case MORSE:
if (text == '_') { state = NORMAL; }
if (text == 'M') { // tx message
getValue();
if(repeater == true && tx_freq != 0) { radio.frequency(tx_freq); }
muted = false; // can't mute (for PL tones) during tx
radio.setUnmute();
radio.setModeTransmit();
delay(300);
radio.morseOut(cmdbuff);
if(repeater == true) { radio.frequency(freq); }
radio.setModeReceive();
} else {
// not a valid cmd
while (Serial.available()) { Serial.read(); }
}
break;
case DTMF:
if (text == '_') { state = NORMAL; }
if (text == 'D') { // tx message
getValue();
dtmf_out(cmdbuff);
} else {
// not a valid cmd
while (Serial.available()) { Serial.read(); }
}
break;
default:
// we're in an invalid state, reset to safe settings
while (Serial.available()) { Serial.read(); }
radio.frequency(freq);
radio.setModeReceive();
state = NORMAL;
break;
}
}
if(state == 10) {
if(millis() > (timer + 500)) { Serial.println("#TX,OFF;");radio.setModeReceive(); if(repeater == 1) { radio.frequency(freq); } state = 0; txcount = 0; }
// now handle any state related functions
switch (state) {
case TX:
if(millis() > (timer + 500)) {
Serial.println("#TX,OFF;");
radio.setModeReceive();
if(repeater == true) { radio.frequency(freq); }
if (rx_ctcss) {
radio.setMute();
muted = true;
}
txcount = 0;
state = NORMAL;
}
break;
case NORMAL:
// deal with rx ctccs if necessary
if (rx_ctcss) {
if (radio.getCtcssToneDetected()) {
if (muted) {
muted = false;
radio.setUnmute();
}
} else {
if (!muted) {
muted = true;
radio.setMute();
}
}
}
break;
case DTMF:
dtmf_rx(); // wait for DTMF reception
break;
case MORSE:
morse_rx(); // wait for Morse reception
break;
}
// get rid of any trailing whitespace in the serial buffer
if (Serial.available()) {
char cpeek = Serial.peek();
while (cpeek == ' ' || cpeek == '\r' || cpeek == '\n')
{
Serial.read();
cpeek = Serial.peek();
}
}
}
void getValue() {
int p = 0;
char temp;
for(;;) {
if(Serial.available()) {
temp = Serial.read();
if(temp == 59) { cmdbuff[p] = 0; Serial.print("@");
for(int x = 0; x < 32; x++) { Serial.print(cmdbuff[x]);}
Serial.println();
return;
}
cmdbuff[p] = temp;
p++;
if(p == 32) {
Serial.print("@");
for(int x = 0; x < 32; x++) {
Serial.println(cmdbuff[x]);
}
cmdbuff[0] = 0;
Serial.println("X0;"); return; } // some sort of alignment issue? lets not feed junk into whatever takes this string in
}
if(Serial.available()) {
temp = Serial.read();
if(temp == 59) {
cmdbuff[p] = 0;
return;
}
cmdbuff[p] = temp;
p++;
if(p == 32) {
cmdbuff[0] = 0;
return;
}
}
}
}
void dtmfSetup() {
radio.setVolume1(6);
radio.setVolume2(0);
radio.setDTMFDetectTime(24); // time to detect a DTMF code, units are 2.5ms
radio.setDTMFIdleTime(50); // time between transmitted DTMF codes, units are 2.5ms
radio.setDTMFTxTime(60); // duration of transmitted DTMF codes, units are 2.5ms
}
void dtmf_out(char * out_buf) {
if (out_buf[0] == ';' || out_buf[0] == 0) return; // empty message
uint8_t i = 0;
uint8_t code = radio.DTMFchar2code(out_buf[i]);
// start transmitting
radio.setDTMFCode(code); // set first
radio.setTxSourceTones();
if(repeater == true && tx_freq != 0) { radio.frequency(tx_freq); }
muted = false; // can't mute during transmit
radio.setUnmute();
radio.setModeTransmit();
delay(300); // wait for TX to come to full power
bool dtmf_to_tx = true;
while (dtmf_to_tx) {
// wait until ready
while (radio.getDTMFTxActive() != 1) {
// wait until we're ready for a new code
delay(10);
}
if (i < 32 && out_buf[i] != ';' && out_buf[i] != 0) {
code = radio.DTMFchar2code(out_buf[i]);
if (code == 255) code = 0xE; // throw a * in there so we don't break things with an invalid code
radio.setDTMFCode(code); // set first
} else {
dtmf_to_tx = false;
break;
}
i++;
while (radio.getDTMFTxActive() != 0) {
// wait until this code is done
delay(10);
}
}
// done with tone
radio.setModeReceive();
if (repeater == true) {radio.frequency(freq);}
radio.setTxSourceMic();
}
void dtmf_rx() {
char m = radio.DTMFRxLoop();
if (m != 0) {
// Note: not doing buffering of messages,
// we just send a single morse character
// whenever we get it
Serial.print('R');
Serial.print(m);
Serial.println(';');
}
}
// TODO: morse config info
void morse_rx_setup() {
// Set the morse code characteristics
radio.setMorseFreq(MORSE_FREQ);
radio.setMorseDotMillis(MORSE_DOT);
radio.lookForTone(MORSE_FREQ);
radio.setupMorseRx();
}
void morse_rx() {
char m = radio.morseRxLoop();
if (m != 0) {
// Note: not doing buffering of messages,
// we just send a single morse character
// whenever we get it
Serial.print('R');
Serial.print(m);
Serial.println(';');
}
}
void pl_tone_tx() {
memset(pl_tx_buffer,0,32);
uint8_t ptr = 0;
while(1) {
if(Serial.available()) {
uint8_t buf = Serial.read();
if(buf == 'X') { return; }
if(buf == ';') { pl_tx_buffer[ptr] = 0; program_pl_tx(); return; }
if(ptr == 31) { return; }
pl_tx_buffer[ptr] = buf; ptr++;
}
}
}
void program_pl_tx() {
float pl_tx = atof(pl_tx_buffer);
radio.setCtcss(pl_tx);
if (pl_tx == 0) {
radio.disableCtcssTx();
} else {
radio.enableCtcssTx();
}
}
void pl_tone_rx() {
memset(pl_rx_buffer,0,32);
uint8_t ptr = 0;
while(1) {
if(Serial.available()) {
uint8_t buf = Serial.read();
if(buf == 'X') { return; }
if(buf == ';') { pl_rx_buffer[ptr] = 0; program_pl_rx(); return; }
if(ptr == 31) { return; }
pl_rx_buffer[ptr] = buf; ptr++;
}
}
}
void program_pl_rx() {
float pl_rx = atof(pl_rx_buffer);
radio.setCtcss(pl_rx);
if (pl_rx == 0) {
rx_ctcss = false;
radio.setUnmute();
muted = false;
radio.disableCtcssRx();
} else {
rx_ctcss = true;
radio.setMute();
muted = true;
radio.enableCtcssRx();
}
}

2
examples/SignalTest/SignalTest.ino
View File

@ -106,7 +106,7 @@ void setup() {
int result = radio.testConnection();
Serial.println(result);
radio.initialize();
radio.frequency(446000);
radio.frequency(432400);
radio.setVolume1(0xF);
radio.setVolume2(0xF);
radio.setModeReceive();

2
examples/SpeechTX/SpeechTX.ino
View File

@ -249,7 +249,7 @@ void setup() {
Serial.println("Setting radio to its defaults..");
radio.initialize();
radio.setRfPower(0);
radio.frequency(144025);
radio.frequency(145010);
radio.setModeTransmit();
voice.say(spKILO); // to change these to the words you would like to say, or a ham radio call sign - uncomment above encoded words

2
library.properties
View File

@ -1,5 +1,5 @@
name=HamShield
version=1.1.2
version=1.1.3
author=Morgan Redfield <morgan@enhancedradio.com>, Casey Halverson <casey@enhancedradio.com>
maintainer=Morgan Redfield <morgan@enhancedradio.com>
sentence=A library for use with HamShield by Enhanced Radio Devices.

216
src/HamShield.cpp
View File

@ -193,7 +193,7 @@ void HamShield::initialize(bool narrowBand) {
HSwriteWord(devAddr, 0x57, tx_data);
tx_data = 0x800D;
HSwriteWord(devAddr, 0x58, tx_data);
tx_data = 0x0EDD;
tx_data = 0x0EDB;
HSwriteWord(devAddr, 0x5A, tx_data); // sq and noise detect times
tx_data = 0x3FFF;
HSwriteWord(devAddr, 0x63, tx_data); // pre-emphasis bypass
@ -227,7 +227,7 @@ void HamShield::initialize(bool narrowBand) {
setModeReceive();
setTxSourceMic();
setRfPower(0);
setSQLoThresh(80);
setSQLoThresh(-80);
setSQOn();
*/
setDTMFIdleTime(50);
@ -256,11 +256,11 @@ void HamShield::setupNarrowBand() {
HSwriteWord(devAddr, 0x34, tx_data);
tx_data = 0x40C3;
HSwriteWord(devAddr, 0x3A, tx_data); // modu_det_sel sq setting
tx_data = 0x0407;
tx_data = 0x0F1E;
HSwriteWord(devAddr, 0x3C, tx_data); // pk_det_th sq setting [8:7]
tx_data = 0x28D0;
HSwriteWord(devAddr, 0x3F, tx_data); // rssi3_th sq setting
tx_data = 0x203E;
tx_data = 0x20BE;
HSwriteWord(devAddr, 0x48, tx_data);
tx_data = 0x1BB7;
HSwriteWord(devAddr, 0x60, tx_data);
@ -773,20 +773,37 @@ void HamShield::setCtcssFreqToStandard(){
setCtcssFreq(13440);
}
void HamShield::enableCtcss() {
// enable TX
HSwriteBitsW(devAddr, A1846S_CTCSS_MODE_REG, 10, 2, 3);
void HamShield::enableCtcssTx() {
HSwriteBitsW(devAddr, A1846S_CTCSS_MODE_REG, 10, 2, 3);
}
// enable RX
setCtcssGpioSel(1);
void HamShield::enableCtcssRx() {
setCtcssGpioSel(1);
HSwriteBitW(devAddr, A1846S_TX_VOICE_REG, A1846S_CTCSS_DET_BIT, 0);
HSwriteBitW(devAddr, A1846S_FILTER_REG, A1846S_CTCSS_FILTER_BYPASS, 0);
setDetCtcss();
}
void HamShield::disableCtcss() {
HSwriteBitsW(devAddr, A1846S_CTCSS_MODE_REG, 10, 2, 0);
void HamShield::enableCtcss() {
// enable TX
enableCtcssTx();
// enable RX
enableCtcssRx();
}
void HamShield::disableCtcssTx() {
HSwriteBitsW(devAddr, A1846S_CTCSS_MODE_REG, 10, 2, 0);
}
void HamShield::disableCtcssRx() {
setCtcssGpioSel(0);
disableCtcssCdcss();
}
void HamShield::disableCtcss() {
disableCtcssTx();
disableCtcssRx();
}
// match threshold
void HamShield::setCtcssDetThreshIn(uint8_t thresh) {
@ -870,24 +887,30 @@ bool HamShield::getSQState(){
void HamShield::setSQHiThresh(int16_t sq_hi_threshold){
// Sq detect high th, rssi_cmp will be 1 when rssi>th_h_sq, unit 1dB
uint16_t sq = 137 + sq_hi_threshold;
HSwriteWord(devAddr, A1846S_SQ_OPEN_THRESH_REG, sq);
HSwriteBitsW(devAddr, A1846S_SQ_OPEN_THRESH_REG, A1846S_SQ_OPEN_THRESH_BIT, A1846S_SQ_OPEN_THRESH_LENGTH, sq);
}
int16_t HamShield::getSQHiThresh(){
HSreadWord(devAddr, A1846S_SQ_OPEN_THRESH_REG, radio_i2c_buf);
HSreadBitsW(devAddr, A1846S_SQ_OPEN_THRESH_REG, A1846S_SQ_OPEN_THRESH_BIT, A1846S_SQ_OPEN_THRESH_LENGTH, radio_i2c_buf);
return radio_i2c_buf[0] - 137;
}
void HamShield::setSQLoThresh(int16_t sq_lo_threshold){
// Sq detect low th, rssi_cmp will be 0 when rssi<th_l_sq && time delay meet, unit 1 dB
uint16_t sq = 137 + sq_lo_threshold;
HSwriteWord(devAddr, A1846S_SQ_SHUT_THRESH_REG, sq);
HSwriteBitsW(devAddr, A1846S_SQ_SHUT_THRESH_REG, A1846S_SQ_SHUT_THRESH_BIT, A1846S_SQ_SHUT_THRESH_LENGTH, sq);
}
int16_t HamShield::getSQLoThresh(){
HSreadWord(devAddr, A1846S_SQ_SHUT_THRESH_REG, radio_i2c_buf);
HSreadBitsW(devAddr, A1846S_SQ_SHUT_THRESH_REG, A1846S_SQ_SHUT_THRESH_BIT, A1846S_SQ_SHUT_THRESH_LENGTH, radio_i2c_buf);
return radio_i2c_buf[0] - 137;
}
bool HamShield::getSquelching() {
HSreadBitW(devAddr, A1846S_FLAG_REG, A1846S_SQ_FLAG_BIT, radio_i2c_buf);
return (radio_i2c_buf[0] != 0);
}
// SQ out select
void HamShield::setSQOutSel(){
HSwriteBitW(devAddr, A1846S_SQ_OUT_SEL_REG, A1846S_SQ_OUT_SEL_BIT, 1);
@ -998,6 +1021,67 @@ uint16_t HamShield::getDTMFIdleTime() {
return radio_i2c_buf[0];
}
char HamShield::DTMFRxLoop() {
char m = 0;
if (getDTMFSample() != 0) {
uint16_t code = getDTMFCode();
m = DTMFcode2char(code);
// reset after this tone
int j = 0;
while (j < 4) {
if (getDTMFSample() == 0) {
j++;
} else {
j = 1;
}
delay(10);
}
// reset read
//enableDTMFReceive();
}
return m;
}
char HamShield::DTMFcode2char(uint16_t code) {
char c;
if (code < 10) {
c = '0' + code;
} else if (code < 0xE) {
c = 'A' + code - 10;
} else if (code == 0xE) {
c = '*';
} else if (code == 0xF) {
c = '#';
} else {
c = '?'; // invalid code
}
return c;
}
uint8_t HamShield::DTMFchar2code(char c) {
uint8_t code;
if (c == '#') {
code = 0xF;
} else if (c=='*') {
code = 0xE;
} else if (c >= 'A' && c <= 'D') {
code = c - 'A' + 0xA;
} else if (c >= '0' && c <= '9') {
code = c - '0';
} else {
// invalid code, skip it
code = 255;
}
return code;
}
void HamShield::setDTMFTxTime(uint16_t tx_time) {
if (tx_time > 63) {tx_time = 63;} // maxed out
// tx time is duration of DTMF Tone
@ -1616,6 +1700,10 @@ bool HamShield::waitForChannel(long timeout = 0, long breakwindow = 0, int setRS
return false;
}
void HamShield::setupMorseRx() {
// TODO: morse timing config (e.g. dot time, dash time, etc)
}
// Get current morse code tone frequency (in Hz)
unsigned int HamShield::getMorseFreq() {
@ -1693,6 +1781,104 @@ void HamShield::morseOut(char buffer[HAMSHIELD_MORSE_BUFFER_SIZE]) {
return;
}
// returns '\0' if no valid morse char found yet
char HamShield::morseRxLoop() {
static uint32_t last_tone_check = 0; // track how often we check for morse tones
static uint32_t tone_in_progress; // track how long the current tone lasts
static uint32_t space_in_progress; // track how long since the last tone
static uint8_t rx_morse_char;
static uint8_t rx_morse_bit;
static bool bits_to_process;
if (last_tone_check == 0) {
last_tone_check = millis();
space_in_progress = 0; // haven't checked yet
tone_in_progress = 0; // not currently listening to a tone
rx_morse_char = 0; // haven't found any tones yet
rx_morse_bit = 1;
bits_to_process = false;
}
char m = 0;
// are we receiving anything
if (toneDetected()) {
space_in_progress = 0;
if (tone_in_progress == 0) {
// start a new tone
tone_in_progress = millis();
//Serial.print('t');
}
} else {
// keep track of how long the silence is
if (space_in_progress == 0) space_in_progress = millis();
// we wait for a bit of silence before ending the last
// symbol in order to smooth out the detector
if ((millis() - space_in_progress) > SYMBOL_END_TIME)
{
if (tone_in_progress != 0) {
// end the last tone
uint16_t tone_time = millis() - tone_in_progress;
tone_in_progress = 0;
//Serial.println(tone_time);
bits_to_process = handleMorseTone(tone_time, bits_to_process, &rx_morse_char, &rx_morse_bit);
}
}
// we might be done with a character if the space is long enough
if (((millis() - space_in_progress) > CHAR_END_TIME) && bits_to_process) {
m = parseMorse(rx_morse_char, rx_morse_bit);
bits_to_process = false;
rx_morse_char = 0;
rx_morse_bit = 1;
}
// we might be done with a message if the space is long enough
if ((millis() - space_in_progress) > MESSAGE_END_TIME) {
rx_morse_char = 0;
rx_morse_bit = 1;
}
}
return m;
}
bool HamShield::handleMorseTone(uint16_t tone_time, bool bits_to_process,
uint8_t * rx_morse_char, uint8_t * rx_morse_bit) {
//Serial.println(tone_time);
if (tone_time > MIN_DOT_TIME && tone_time < MAX_DOT_TIME) {
// add a dot
//Serial.print(".");
bits_to_process = true;
//nothing to do for this bit position, since . = 0
} else if (tone_time > MIN_DASH_TIME && tone_time < MAX_DASH_TIME) {
// add a dash
//Serial.print("-");
bits_to_process = true;
*rx_morse_char += *rx_morse_bit;
}
// prep for the next bit
*rx_morse_bit = *rx_morse_bit << 1;
return bits_to_process;
}
char HamShield::parseMorse(uint8_t rx_morse_char, uint8_t rx_morse_bit) {
// if morse_char is a valid morse character, return the character
// if morse_char is an invalid (incomplete) morse character, return 0
//if (rx_morse_bit != 1) Serial.println(rx_morse_char, BIN);
rx_morse_char += rx_morse_bit; // add the terminator bit
// if we got a char, then print it
char c = morseReverseLookup(rx_morse_char);
return c;
}
/* Morse code lookup table */
uint8_t HamShield::morseLookup(char letter) {

40
src/HamShield.h
View File

@ -32,7 +32,7 @@
#define A1846S_TH_L_VOX_REG 0x64 // register holds vox low (shut) threshold bits
#define A1846S_FM_DEV_REG 0x43 // register holds fm deviation settings
#define A1846S_RX_VOLUME_REG 0x44 // register holds RX volume settings
#define A1846S_SQ_OPEN_THRESH_REG 0x48 // see sq
#define A1846S_SQ_OPEN_THRESH_REG 0x49 // see sq
#define A1846S_SQ_SHUT_THRESH_REG 0x49 // see sq
#define A1846S_CTCSS_FREQ_REG 0x4A // ctcss_freq<15:0>
#define A1846S_CDCSS_CODE_HI_REG 0x4B // cdcss_code<23:16>
@ -145,12 +145,12 @@
#define A1846S_SHIFT_SEL_LEN 2
// Bitfields for A1846S_SQ_THRESH_REG
#define A1846S_SQ_OPEN_THRESH_BIT 9 // sq open threshold <9:0>
#define A1846S_SQ_OPEN_THRESH_LENGTH 10
#define A1846S_SQ_OPEN_THRESH_BIT 13 // sq open threshold <6:0>
#define A1846S_SQ_OPEN_THRESH_LENGTH 7
// Bitfields for A1846S_SQ_SHUT_THRESH_REG
#define A1846S_SQ_SHUT_THRESH_BIT 9 // sq shut threshold <9:0>
#define A1846S_SQ_SHUT_THRESH_LENGTH 10
#define A1846S_SQ_SHUT_THRESH_BIT 6 // sq shut threshold <6:0>
#define A1846S_SQ_SHUT_THRESH_LENGTH 7
// Bitfields for A1846S_SQ_OUT_SEL_REG
#define A1846S_SQ_OUT_SEL_BIT 7 // sq_out_sel
@ -168,8 +168,8 @@
#define A1846S_CTCSS2_FLAG_BIT 8 // 1 when txon is enabled
#define A1846S_INVERT_DET_FLAG_BIT 7 // ctcss phase shift detect
#define A1846S_CSS_CMP_FLAG_BIT 2 // ctcss/cdcss compared
#define A1846S_SQ_FLAG_BIT 1 // sq final signal out from dsp
#define A1846S_VOX_FLAG_BIT 0 // vox out from dsp
#define A1846S_SQ_FLAG_BIT 0 // sq final signal out from dsp
#define A1846S_VOX_FLAG_BIT 1 // vox out from dsp
// Bitfields for A1846S_RSSI_REG
#define A1846S_RSSI_BIT 15 // RSSI readings <7:0>
@ -217,6 +217,20 @@
#define HAMSHIELD_PSK31_FREQ 1000
// Morse Configuration
#define MORSE_FREQ 600
#define MORSE_DOT 150 // ms
#define SYMBOL_END_TIME 5 //millis
#define CHAR_END_TIME (MORSE_DOT*2.7)
#define MESSAGE_END_TIME (MORSE_DOT*8)
#define MIN_DOT_TIME (MORSE_DOT-30)
#define MAX_DOT_TIME (MORSE_DOT+55)
#define MIN_DASH_TIME (MORSE_DOT*3-30)
#define MAX_DASH_TIME (MORSE_DOT*3+55)
class HamShield {
public:
@ -299,7 +313,11 @@ class HamShield {
uint16_t getCtcssFreqMilliHz();
float getCtcssFreqHz();
void setCtcssFreqToStandard(); // freq must be 134.4Hz for standard cdcss mode
void enableCtcssTx();
void enableCtcssRx();
void enableCtcss();
void disableCtcssTx();
void disableCtcssRx();
void disableCtcss();
void setCtcssDetThreshIn(uint8_t thresh);
uint8_t getCtcssDetThreshIn();
@ -344,6 +362,7 @@ class HamShield {
int16_t getSQHiThresh();
void setSQLoThresh(int16_t sq_lo_threshold); // Sq detect low th, rssi_cmp will be 0 when rssi<th_l_sq && time delay meet, unit 1dB
int16_t getSQLoThresh();
bool getSquelching();
// SQ out select
void setSQOutSel();
@ -389,6 +408,9 @@ class HamShield {
uint16_t getDTMFDetectTime();
void setDTMFIdleTime(uint16_t idle_time); // idle time is time between DTMF Tone
uint16_t getDTMFIdleTime();
char DTMFRxLoop();
char DTMFcode2char(uint16_t code);
uint8_t DTMFchar2code(char c);
void setDTMFTxTime(uint16_t tx_time); // tx time is duration of DTMF Tone
uint16_t getDTMFTxTime();
uint16_t disableDTMF();
@ -482,11 +504,15 @@ class HamShield {
uint32_t scanChannels(uint32_t buffer[],uint8_t buffsize, uint8_t speed, uint16_t threshold);
uint32_t findWhitespaceChannels(uint32_t buffer[],uint8_t buffsize, uint8_t dwell, uint16_t threshold);
void setupMorseRx();
unsigned int getMorseFreq();
void setMorseFreq(unsigned int morse_freq_hz);
unsigned int getMorseDotMillis();
void setMorseDotMillis(unsigned int morse_dot_dur_millis);
void morseOut(char buffer[HAMSHIELD_MORSE_BUFFER_SIZE]);
char morseRxLoop();
bool handleMorseTone(uint16_t tone_time, bool bits_to_process, uint8_t * rx_morse_char, uint8_t * rx_morse_bit);
char parseMorse(uint8_t rx_morse_char, uint8_t rx_morse_bit);
uint8_t morseLookup(char letter);
uint8_t morseReverseLookup(uint8_t itu);
bool waitForChannel(long timeout, long breakwindow, int setRSSI);