Arduino sketch for NodeMCU to receive incoming data from Arduino NANO using SoftwareSerial library

NodeMCU_receive_from_Arduino_NANO.ino

#include <SoftwareSerial.h>

SoftwareSerial softSerial(D2, D3); // (RX, TX)
SimpleDHT11 dht11(5);

void setup() {
  softSerial.begin(9600);

}

void loop() {
  if(softSerial.available()){
    String data = softSerial.readStringUntil('\n'); // contoh terima 23,56
    
    String temperature = data.substring(0, data.indexOf(","));
    String humidity = data.substring(data.indexOf(",") + 1);
    
    softSerial.flush();
  }
}