112 lines
2.5 KiB
Arduino
112 lines
2.5 KiB
Arduino
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/*
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Record sound and then plays it back a few times.
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Very low sound quality @ 2KHz 0.75 seconds
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A bit robotic and weird
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*/
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#include <HAMShield.h>
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#include <Wire.h>
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#define RATE 500
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#define SIZE 1500
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HAMShield radio;
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char sound[SIZE];
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unsigned int sample1;
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int x = -1;
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int16_t rssi;
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byte mode = 8;
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void setup() {
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Wire.begin();
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// int result = radio.testConnection();
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radio.initialize();
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radio.setFrequency(446000);
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setPwmFrequency(9, 1);
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}
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void loop() {
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rssi = radio.readRSSI();
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if(rssi > -100) {
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if(x == -1) {
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for(x = 0; x < SIZE; x++) {
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if(mode == 4) {
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sample1 = analogRead(0);
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sound[x] = sample1 >> 4;
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delayMicroseconds(RATE); x++;
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sample1 = analogRead(0);
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sound[x] = (sample1 & 0xF0) | sound[x];
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delayMicroseconds(RATE);
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} else {
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sound[x] = analogRead(0);
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delayMicroseconds(RATE); x++;
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sound[x] = analogRead(0);
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delayMicroseconds(RATE);
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}
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}
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}
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}
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if(rssi < -100) {
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if(x == 1500) {
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radio.setModeTransmit();
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delay(500);
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tone(9,1000,500); delay(750);
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for(int r = 0; r < 10; r++) {
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for(x = 0; x < SIZE; x++) {
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if(mode == 4) {
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analogWrite(9,sound[x] << 4);
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delayMicroseconds(RATE); x++;
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analogWrite(9,sound[x] & 0xF);
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delayMicroseconds(RATE); } else {
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analogWrite(9,sound[x]);
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delayMicroseconds(RATE); x++;
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analogWrite(9,sound[x]);
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delayMicroseconds(RATE);
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}
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} }
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tone(9,1000,500); delay(750);
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radio.setModeReceive();
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x = -1;
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}
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}
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}
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void setPwmFrequency(int pin, int divisor) {
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byte mode;
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if(pin == 5 || pin == 6 || pin == 9 || pin == 10) {
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switch(divisor) {
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case 1: mode = 0x01; break;
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case 8: mode = 0x02; break;
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case 64: mode = 0x03; break;
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case 256: mode = 0x04; break;
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case 1024: mode = 0x05; break;
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default: return;
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}
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if(pin == 5 || pin == 6) {
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TCCR0B = TCCR0B & 0b11111000 | mode;
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} else {
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TCCR1B = TCCR1B & 0b11111000 | mode;
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}
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} else if(pin == 3 || pin == 11) {
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switch(divisor) {
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case 1: mode = 0x01; break;
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case 8: mode = 0x02; break;
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case 32: mode = 0x03; break;
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case 64: mode = 0x04; break;
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case 128: mode = 0x05; break;
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case 256: mode = 0x06; break;
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case 1024: mode = 0x7; break;
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default: return;
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}
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TCCR2B = TCCR2B & 0b11111000 | mode;
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}
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}
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