Dalla domanda è evidente che sono alle prime armi. Ho uno sketch per nano33 IOT con il quale interfaccio un ricetrasmettitore e al variare di 9 bande varia una tensione su A0.
Vorrei banalmente aggiungere l'accensione di un led ad ogni cambio di banda utilizzando D2 - D12
pensavo a if return e poi writeled ecc..
Potreste indicarmi il modo corretto per programmare la condizione? di seguito lo sketch
grazie a tutti coloro che vorranno darmi una mano
*/
/* Begin user configurable settings. */
#define RADIO_BAUD 115200
#define COMPUTER_BAUD 115200
/* Change for your country. Defaults to US band plan. */
#define BAND_MIN_160M 1800000
#define BAND_MAX_160M 2000000
#define BAND_MIN_80M 3500000
#define BAND_MAX_80M 4000000
/* FT-817/818 does not define a specific 60m voltage, so you may want
* to update the frequency ranges below to output e.g. 40M's instead.
*/
//#define BAND_MIN_60M 5330000
//#define BAND_MAX_60M 5407000
#define BAND_MIN_40M 7000000
#define BAND_MAX_40M 7300000
#define BAND_MIN_30M 10000000
#define BAND_MAX_30M 10150000
#define BAND_MIN_20M 14000000
#define BAND_MAX_20M 14350000
#define BAND_MIN_17M 18068000
#define BAND_MAX_17M 18168000
#define BAND_MIN_15M 21000000
#define BAND_MAX_15M 21450000
#define BAND_MIN_12M 24930000
#define BAND_MAX_12M 24990000
#define BAND_MIN_10M 28000000
#define BAND_MAX_10M 29700000
#define BAND_MIN_6M 50000000
#define BAND_MAX_6M 54000000
/* End user configurable settings. */
#define HZ_TO_KHZ 1000
#define COMMAND_TERMINATOR 0xfd
// #define TRANSCEIVER_INFORMATION_RSP "0xfe0xfe"
#define SERIAL_TIMEOUT_MS 1
#define ANALOG_PIN A0 /* MKR Zero pure analog pin */
#define VOLTAGE_STANDARD 330 /* 3.3V; 5V would be 500 */
#define MAX_INT_FOR_VOLTAGE_STANDARD 1023 /* 10 binary ones is 1023 */
#define VOLTAGE_160M 33
#define VOLTAGE_80M 66
//#define VOLTAGE_60M
#define VOLTAGE_40M 100
#define VOLTAGE_30M 130
#define VOLTAGE_20M 160
#define VOLTAGE_17M 200
#define VOLTAGE_15M 230
#define VOLTAGE_12M 270
#define VOLTAGE_10M 300
#define VOLTAGE_6M 330
static int count = 0;
static int cntr = 0;
static unsigned long timer = 0;
static unsigned long oldfrequency = -1;
static unsigned int oldptt = -1;
static int state = 0;
// Converts a voltage to a value suitable for analogWrite().
int voltageToInteger(int voltage)
{
return voltage * MAX_INT_FOR_VOLTAGE_STANDARD / VOLTAGE_STANDARD;
}
int frequencyToVoltage(long frequency)
{
if (frequency >= BAND_MIN_160M && frequency <= BAND_MAX_160M)
{
return VOLTAGE_160M;
}
else if (frequency >= BAND_MIN_80M && frequency <= BAND_MAX_80M)
{
return VOLTAGE_80M;
}
/*else if (frequencyKhz >= BAND_MIN_KHZ_60M && frequencyKhz <= BAND_MAX_KHZ_60M)
{
return VOLTAGE_60M;
}*/
else if (frequency >= BAND_MIN_40M && frequency <= BAND_MAX_40M)
{
return VOLTAGE_40M;
}
else if (frequency >= BAND_MIN_30M && frequency <= BAND_MAX_30M)
{
return VOLTAGE_30M;
}
else if (frequency >= BAND_MIN_20M && frequency <= BAND_MAX_20M)
{
return VOLTAGE_20M;
}
else if (frequency >= BAND_MIN_17M && frequency <= BAND_MAX_17M)
{
return VOLTAGE_17M;
}
else if (frequency >= BAND_MIN_15M && frequency <= BAND_MAX_15M)
{
return VOLTAGE_15M;
}
else if (frequency >= BAND_MIN_12M && frequency <= BAND_MAX_12M)
{
return VOLTAGE_12M;
}
else if (frequency >= BAND_MIN_10M && frequency <= BAND_MAX_10M)
{
return VOLTAGE_10M;
}
else if (frequency >= BAND_MIN_6M && frequency <= BAND_MAX_6M)
{
return VOLTAGE_6M;
}
else
{
return 0; // disable band output
}
}
void setBand(long frequency)
{
// Serial.print(F("Set Voltage for Frequency ")); Serial.println(frequency);
Serial.print(F("Voltage is ")); Serial.println(frequencyToVoltage(frequency));
analogWriteResolution(10);
analogWrite(ANALOG_PIN, voltageToInteger(frequencyToVoltage(frequency)));
}
void setup() {
pinMode(LED_BUILTIN, OUTPUT);
digitalWrite(LED_BUILTIN, LOW);
pinMode(NINA_GPIO0, OUTPUT);
digitalWrite(NINA_GPIO0, HIGH);
pinMode(NINA_RESETN, OUTPUT);
digitalWrite(NINA_RESETN, HIGH);
// Open serial ports
Serial.begin(COMPUTER_BAUD);
// Serial.setTimeout(SERIAL_TIMEOUT_MS);
SerialNina.begin(RADIO_BAUD);
// SerialBT.begin("RadioOut");
// Serial1.setTimeout(SERIAL_TIMEOUT_MS);
// Set analog output pin to 0V.
setBand(0);
// Give time for Windows 10 to initialize
delay(5000);
count = 0;
timer = millis();
oldfrequency = -1;
oldptt = -1;
state=0;
}
void loop()
{
static String computerBuffer;
static unsigned char radioBuffer[64];
static bool doneReceiving = false;
static char buf[20];
static unsigned char character;
static int i;
static int j;
static long mult;
static long frequency;
static int ptt;
static unsigned char freqcmd[6] = {0xfe,0xfe,0xa4,0xe0,0x03,0xfd};
static unsigned char pttcmd[7] = {0xfe,0xfe,0xa4,0xe0,0x1c,0x00,0xfd};
while (SerialNina.available() > 0)
{
character = SerialNina.read();
// sprintf(buf, "%02X", character);
// Serial.print(buf);
if (character == COMMAND_TERMINATOR)
{
// Serial.println();
radioBuffer[count++] = character;
j=count;
count=0;
if ((radioBuffer[2] == 0xe0) && (radioBuffer[3] == 0xa4)) {
// Serial.print("\r\nLine: ");
// print the result
// for (i=0 ; i < j ; i++) {
// sprintf(buf, "%02X", radioBuffer[i]);
// Serial.print(buf);
// }
// Serial.println();
// At his point, we have a command in the buffer - process it
if (radioBuffer[4] == 0x03) {
mult = 1;
frequency = 0;
for(i = 5 ; i < 10 ; i++) {
frequency += (radioBuffer[i] & 0xf) * mult;
frequency += ((radioBuffer[i] >> 4) & 0xf) * mult * 10;
mult *= 100;
}
timer = millis();
state = 2;
if (frequency != oldfrequency) {
oldfrequency = frequency;
Serial.print("Frequency = "); Serial.println(frequency);
setBand(frequency);
}
}
if ((radioBuffer[4] == 0x1c) && (radioBuffer[5] == 0x00))
{
ptt = radioBuffer[6];
timer = millis();
state = 0;
if (ptt != oldptt) {
oldptt = ptt;
Serial.print("PTT = "); Serial.println(radioBuffer[6]);
if (ptt == 1) {
digitalWrite(LED_BUILTIN, HIGH);
} else {
digitalWrite(LED_BUILTIN, LOW);
}
}
}
}
}
else
{
radioBuffer[count++] = character;
}
}
if (millis() - timer > 5000) {
timer = millis();
state = 0;
}
if (state == 0) {
SerialNina.write(freqcmd, 6);
timer = millis();
state = 1;
}
if (state == 2) {
SerialNina.write(pttcmd, 7);
timer = millis();
state = 3;
}
}
che si trova in basso del tuo post