How can I fix my serial communication from Arduio Uno to ESP8266? - arduino-ide

Question

I'm testing the Serial Communication with my Arduino and NodeMCU, and how I can send one data to another. Here is the Code.
For the Arduino Uno
#include <SoftwareSerial.h>
SoftwareSerial mySerial(10, 11); //RX, TX
float i = 10;
void setup() {
Serial.begin(9600);
mySerial.begin(9600);
}
void loop() {
Serial.print("Number ");
Serial.print(i);
Serial.println("");
mySerial.write(i);
delay(1000);
}
And here is for my ESP8266 NodeMCU
#include <SoftwareSerial.h>
SoftwareSerial myNode(D1, D2); //RX, TX
float git;
void setup() {
Serial.begin(115200);
myNode.begin(9600);
}
void loop() {
git = Serial.read();
Serial.print("The Number is ");
Serial.print(git);
Serial.println("");
delay(1000);
}
The result should be that in the Serial Monitor it should say "The Number is 10". But instead it says -1.00 enter image description here
Am I doing something wrong?

Answer 1

Ah, I finally figured it out. Apparently I need to initialize the NodeMCU Pin's as so:
#include <SoftwareSerial.h>
static const uint8_t D1 = 5;
static const uint8_t D2 = 4;
SoftwareSerial myNode(D1, D2); //RX, TX
float git;
void setup() {
Serial.begin(115200);
myNode.begin(9600);
}
void loop() {
git = Serial.read();
Serial.print("The Number is ");
Serial.print(git);
Serial.println("");
delay(1000);
}

Answer 2

Try
git = myNode.read();
instead of
git = Serial.read();
And check myNode.available() before reading