65 lines
1.9 KiB
C++
Executable File
65 lines
1.9 KiB
C++
Executable File
/* Hamshield
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* Example: SSTV
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* This program will transmit a test pattern. You will need
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* SSTV receive equipment to test the output.
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* Connect the HamShield to your Arduino. Screw the antenna
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* into the HamShield RF jack. Connect the Arduino to wall
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* power and then to your computer via USB. After uploading
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* this program to your adruino, open the Serial Monitor to
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* view the status of the program. Tune your SSTV to
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* 446MHz to receive the image output.
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*/
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#define PWM_PIN 3
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#define RESET_PIN A3
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#define SWITCH_PIN 2
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#define DOT 100
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#define CALLSIGN "1ZZ9ZZ/B"
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/* Standard libraries and variable init */
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#include <HamShield.h>
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HamShield radio;
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int16_t rssi;
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/* get our radio ready */
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void setup() {
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// NOTE: if not using PWM out, it should be held low to avoid tx noise
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pinMode(PWM_PIN, OUTPUT);
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digitalWrite(PWM_PIN, LOW);
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// prep the switch
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pinMode(SWITCH_PIN, INPUT_PULLUP);
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// set up the reset control pin
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pinMode(RESET_PIN, OUTPUT);
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digitalWrite(RESET_PIN, HIGH);
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Serial.begin(9600);
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Serial.print("Radio status: ");
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int result = radio.testConnection();
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Serial.println(result);
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radio.initialize();
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radio.frequency(446000);
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radio.setModeReceive();
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}
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/* main program loop */
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void loop() {
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if(radio.waitForChannel(1000,2000, rssi)) { // Wait forever for calling frequency to open, then wait 2 seconds for breakers
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radio.setModeTransmit(); // Turn on the transmitter
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delay(250); // Wait a moment
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radio.SSTVTestPattern(MARTIN1); // send a MARTIN1 test pattern
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delay(250);
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radio.setModeReceive(); // Turn off the transmitter
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} else { delay(30000); } // someone broke in fast after prior transmission, was it an emergency? wait 30 secs.
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delay(60000); // Wait a minute
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}
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