Unit RF433 Arduino 使用チュートリアル

#include <M5Unified.h>

#define TX_PIN 21

uint8_t data[5] = {0xAA, 0x55, 0x01, 0x02, 0x03};

void pulse(int high, int low) {
    digitalWrite(TX_PIN, HIGH);
    delayMicroseconds(high);
    digitalWrite(TX_PIN, LOW);
    delayMicroseconds(low);
}

void sendCorrected() {
    noInterrupts();
    
    digitalWrite(TX_PIN, LOW);
    delayMicroseconds(10000);
    
    pulse(5000, 2500); 
    pulse(2500, 1250);  
    
    pulse(8000, 4000);  
    
    for (int byte = 0; byte < 5; byte++) {
        for (int bit = 7; bit >= 0; bit--) {
            if (data[byte] & (1 << bit)) {
                pulse(600, 300);  
            } else {
                pulse(300, 600); 
            }
        }
    }
    
    pulse(8000, 10000);
    
    interrupts();
}

void setup() {
    M5.begin();
    Serial.begin(115200);
    
    pinMode(TX_PIN, OUTPUT);
    digitalWrite(TX_PIN, LOW);
    
    M5.Display.fillRect(0, 0, 320, 240, WHITE);
    M5.Display.setTextColor(BLACK);
    M5.Display.setFont(&fonts::FreeMonoBold12pt7b);
    M5.Display.setCursor(0, 0);
    M5.Display.println("Corrected RF433T");
    M5.Display.println("Click Btn A to send");
    
    Serial.println("Corrected RF433 Transmitter Ready");
}

void loop() {
    M5.update();
    
    if (M5.BtnA.wasPressed()) {
        Serial.println("SEND CORRECTED");
        
        sendCorrected();
        delay(100);
        
        Serial.print("Sent: ");
        for (int i = 0; i < 5; i++) {
            Serial.printf("%02X ", data[i]);
        }
        Serial.println();
        
        M5.Display.print("Sent: ");
        for (int i = 0; i < 5; i++) {
            M5.Display.printf("%02X ", data[i]);
        }
        M5.Display.println("");
    }
    
    delay(10);
}

#include "RF433any.h"
#include <M5Unified.h>

#define PIN_RFINPUT  1

void setup() {
    M5.begin();
    M5.Display.fillRect(0, 0, 320, 240, WHITE);
    M5.Display.setTextColor(BLACK);
    M5.Display.setFont(&fonts::FreeMonoBold12pt7b);
    M5.Display.setCursor(0, 0);
    M5.Display.println("RF433 Receiver");
    pinMode(PIN_RFINPUT, INPUT);
    Serial.begin(115200);
    Serial.println("Waiting for signal\n");
    M5.Display.println("Waiting for signal");
}

Track track(PIN_RFINPUT);

void loop() {
    track.treset();

    while (!track.do_events())
        delay(1);

    Decoder *pdec0 = track.get_data(
        RF433ANY_FD_DECODED | RF433ANY_FD_DEDUP | RF433ANY_FD_NO_ERROR
    );
    for (Decoder *pdec = pdec0; pdec != nullptr; pdec = pdec->get_next()) {
        Serial.print("Received ");
        M5.Display.println("Received \r\n");
        Serial.print(pdec->get_nb_bits());
        M5.Display.print(pdec->get_nb_bits());
        Serial.print(" bits (x");
        M5.Display.println(" bits (x");
        Serial.print(pdec->get_repeats() + 1);
        M5.Display.print(pdec->get_repeats() + 1);
        Serial.print("): ");
        M5.Display.println(": ");
        char *buf = pdec->get_pdata()->to_str();
            // DEFENSIVE PROGRAMMING
            //   The option RF433ANY_FD_DECODED above guarantees there's always
            //   something decoded. Test done though, just in case.
        if (buf) {
            Serial.println(buf);
            M5.Display.println(buf);
            free(buf);
        }
    }
    delete pdec0;
    delay(2000);
    M5.Display.fillRect(0, 40, 320, 220, WHITE);
    M5.Display.setCursor(0, 40);
}

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