Arduino Emiter RF433

emitter.ino

#include "DHT.h"
#include <VirtualWire.h>

#define DHTPIN 7
#define DHTTYPE DHT11

DHT dht(DHTPIN, DHTTYPE);


void setup() {
  Serial.begin(9600);
  dht.begin();
  vw_setup(2000);

  Serial.println("Starting...");
}

void loop() {
  delay(2000);

  float humidity = dht.readHumidity();
  float temperature = dht.readTemperature();

  if(isnan(humidity) || isnan(temperature)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  byte data[27];
  String value = "001#" + (String)(int)temperature + "#" + (String)(int)humidity + "\0";

  strcpy(data,value.c_str());

  vw_send(data, 27);
  vw_wait_tx();
}

receiver.py

#!/usr/bin/env python3
import time
from rpi_rf import RFDevice

rfdevice = RFDevice(27)
rfdevice.enable_rx()

timestamp = None

print('Starting...')

while True:
    if rfdevice.rx_code_timestamp != timestamp:
        timestamp = rfdevice.rx_code_timestamp
        print(str(rfdevice.rx_code) + " [pulselength " + str(rfdevice.rx_pulselength) + ", protocol " + str(rfdevice.rx_proto) + "]")

    time.sleep(0.01)

rfdevice.cleanup()