attiny85-20pu IR remote send, reciver

 참고 사이트

https://backback.tistory.com/35

http://www.technoblogy.com/show?25TN

ArduinoISP로 세팅, 부트로더 굽기, 송신기 프로그램 tiny85에 업로드, arduino uno 에서 수신 테스트

수신 소스=====================================================

/*

source: www.electroschematics.com

You'll need to change the led pins and the codes

accordingly to your configuration and IR remote

*/

#include <IRremote.h>

int RECV_PIN = 3; // the pin where you connect the output pin of TSOP4838

int led1 = 2;

int led2 = 4;

int led3 = 7;

int itsONled[] = {0,0,0,0};

/* the initial state of LEDs is OFF (zero)

the first zero must remain zero but you can

16.change the others to 1's if you want a certain

led to light when the board is powered */

#define code1 63495 // code received from button A

#define code2 30855 // code received from button B

#define code3 22695 // code received from button C

IRrecv irrecv(RECV_PIN);

decode_results results;

void setup()

{

Serial.begin(9600); // you can comment this line

irrecv.enableIRIn(); // Start the receiver

pinMode(led1, OUTPUT);

pinMode(led2, OUTPUT);

pinMode(led3, OUTPUT);

}

void loop() {

if (irrecv.decode(&results)) {

unsigned int value = results.value;

switch(value) {

case code1:

if(itsONled[1] == 1) { // if first led is on then

digitalWrite(led1, LOW); // turn it off when button is pressed

itsONled[1] = 0; // and set its state as off

} else { // else if first led is off

digitalWrite(led1, HIGH); // turn it on when the button is pressed

itsONled[1] = 1; // and set its state as on

}

break;

case code2:

if(itsONled[2] == 1) {

digitalWrite(led2, LOW);

itsONled[2] = 0;

} else {

digitalWrite(led2, HIGH);

itsONled[2] = 1;

}

break;

case code3:

if(itsONled[3] == 1) {

digitalWrite(led3, LOW);

itsONled[3] = 0;

} else {

digitalWrite(led3, HIGH);

itsONled[3] = 1;

}

break;

}

Serial.println(value); // you can comment this line

irrecv.resume(); // Receive the next value

}

}

출처: https://backback.tistory.com/35 [Back Ground] 

송신 소스=====================================================

아래 소스를 이용하였습니다.

​

/* IR Remote Wand v2 - see http://www.technoblogy.com/show?25TN

​

David Johnson-Davies - www.technoblogy.com - 13th May 2018

ATtiny85 @ 1 MHz (internal oscillator; BOD disabled)

​

CC BY 4.0

Licensed under a Creative Commons Attribution 4.0 International license:

http://creativecommons.org/licenses/by/4.0/

*/

​

#include <avr/sleep.h>

​

// IR transmitter **********************************************

​

// Buttons

​

const int S1 = 4;

const int S2 = 3;

const int S3 = 5; // Reset

const int S4 = 2;

const int S5 = 0;

const int LED = 1; // IR LED output

​

// Pin change interrupt service routine

ISR (PCINT0_vect) {

int in = PINB;

if ((in & 1<<S1) == 0) Send('M', 0x0707, 0xFD02);

else if ((in & 1<<S2) == 0) Send('M', 0x0707, 0xFB04);

else if ((in & 1<<S4) == 0) Send('R', 0x0013, 0x0011);

else if ((in & 1<<S5) == 0) Send('R', 0x0013, 0x0010);

}

​

const int top = 25; // 1000000/26 = 38.5kHz

const int match = 19; // approx. 25% mark/space ratio

​

// Set up Timer/Counter1 to output PCM on OC1A (PB1)

void SetupPCM () {

TCCR1 = 1<<PWM1A | 3<<COM1A0 | 1<<CS10; // Inverted PWM output on OC1A divide by 1

OCR1C = top; // 38.5kHz

OCR1A = top; // Keep output low

}

​

// Generate count cycles of carrier followed by gap cycles of gap

void Pulse (int count, int gap) {

OCR1A = match; // Generate pulses

for (int i=0; i<2; i++) {

for (int c=0; c<count; c++) {

while ((TIFR & 1<<TOV1) == 0);

TIFR = 1<<TOV1;

}

count = gap; // Generate gap

OCR1A = top;

}

}

​

void Send (char IRtype, unsigned int Address, unsigned int Command) {

​

// NEC or Samsung codes

if ((IRtype == 'N') || (IRtype == 'M')) {

unsigned long code = ((unsigned long) Command<<16 | Address);

TCNT1 = 0; // Start counting from 0

// Send Start pulse

if (IRtype == 'N') Pulse(342, 171); else Pulse(190, 190);

// Send 32 bits

for (int Bit=0; Bit<32; Bit++)

if (code & ((unsigned long) 1<<Bit)) Pulse(21, 64); else Pulse(21, 21);

Pulse(21, 0);

​

// Sony 12, 15, or 20 bit codes

} else if (IRtype == 12 || IRtype == 15 || IRtype == 20) {

unsigned long code = ((unsigned long) Address<<7 | Command);

TCNT1 = 0; // Start counting from 0

// Send Start pulse

Pulse(96, 24);

// Send 12, 15, or 20 bits

for (int Bit=0; Bit<IRtype; Bit++)

if (code & ((unsigned long) 1<<Bit)) Pulse(48, 24); else Pulse(24, 24);

​

// Philips RC-5 code

} else if (IRtype == 'R') {

static int toggle = toggle ^ 1;

int nextbit, extended = Command>>6 ^ 1;

unsigned int code = 0x2000 | extended<<12 |

toggle<<11 | Address<<6 | (Command & 0x3F);

TCNT1 = 0; // Start counting from 0

for (int b=0; b<14; b++) {

nextbit = code>>(13-b) & 1;

for (uint8_t i=0; i<2; i++) {

if (nextbit) OCR1A = top; else OCR1A = match;

// Wait for 32 Timer/Counter1 overflows

for (int c=0; c<32; c++) {

while ((TIFR & 1<<TOV1) == 0);

TIFR = 1<<TOV1; // Clear overflow flag

}

nextbit = !nextbit;

}

}

OCR1A = top; // Leave output off

}

}

​

// Setup demo **********************************************

​

void setup() {

pinMode(LED, OUTPUT);

pinMode(S1, INPUT_PULLUP);

pinMode(S2, INPUT_PULLUP);

pinMode(S4, INPUT_PULLUP);

pinMode(S5, INPUT_PULLUP);

SetupPCM();

// Configure pin change interrupts to wake on button presses

PCMSK = 1<<S1 | 1<<S2 | 1<<S4 | 1<<S5;

GIMSK = 1<<PCIE; // Enable interrupts

GIFR = 1<<PCIF; // Clear interrupt flag

// Disable what we don't need to save power

ADCSRA &= ~(1<<ADEN); // Disable ADC

PRR = 1<<PRUSI | 1<<PRADC; // Turn off clocks to unused peripherals

set_sleep_mode(SLEEP_MODE_PWR_DOWN);

// Send S3 code on reset

Send('R', 0x0013, 0x000C);

}

​

// Stay asleep and just respond to interrupts

void loop() {

sleep_enable();

sleep_cpu();

}