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transmitterNodemcu.ino
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transmitterNodemcu.ino
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//Transmitter Side Code for ESP8266 ESP-12E module
#include <RH_NRF24.h>
#include <ESP8266WiFi.h>
#include <time.h>
const char* ssid = "TR-1";
const char* password = "1234";
RH_NRF24 nrf24(2,4);
void setup()
{
Serial.begin(9600);
while (!Serial);
if (!nrf24.init())
Serial.println("initialization failed");
if (!nrf24.setChannel(1))
Serial.println("Channel set failed");
if (!nrf24.setRF(RH_NRF24::DataRate2Mbps, RH_NRF24::TransmitPower0dBm))
Serial.println("RF set failed");
Serial.setDebugOutput(true);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
Serial.println("\nConnecting to WiFi");
while (WiFi.status() != WL_CONNECTED) {
Serial.print(".");
delay(1000);
}
configTime(-10800, 0, "0.europe.pool.ntp.org", "time.nist.gov");
Serial.println("\nWaiting for time");
while (!time(nullptr)) {
Serial.print(".");
delay(1000);
}
Serial.println("");
}
void loop()
{
Serial.println("Sending data to receiver");
time_t now = time(nullptr);
String timestring = String(ctime(&now));
uint8_t dataArray[timestring.length()];
timestring.getBytes(dataArray,timestring.length());
nrf24.send(dataArray,sizeof(dataArray));
nrf24.waitPacketSent();
delay(1000);
uint8_t buf1[RH_NRF24_MAX_MESSAGE_LEN];
uint8_t len = sizeof(buf1);
if(nrf24.recv(buf1, &len))
{
Serial.print("Temperture: ");
Serial.println((char*)buf1);
}
else
{
Serial.println("recv failed");
}
}