nRF24L01, radios work fine, need data type help

Using Arduino Programming Questions
4

Thanks Bob and gcjr, (and anyone else who replied this morning while I was testing/learning).

Your advice solved the problem. I had inaccurate notions about the data types that are acceptable to the radio classes.

For future searchers with a similar question/project. Below are my sketches that worked (mostly). I was not successful at getting the Tx to detect an ack, so I commented out ack detection flow in my Tx sketch (input on that appreciated!).

Derived from Robin2's Simple nRF24L01+ 2.4GHz transceiver demo

First Sketch is for sending the analog data collected from a potentiometer.

// Reads pot value and sends it over nRF24L01

#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>


#define CE_PIN   9
#define CSN_PIN 10
int dataToSend;
bool rslt;
const byte slaveAddress[5] = {0x52,0x78,0x41,0x41,0x41};

RF24 radio(CE_PIN, CSN_PIN); // Create a Radio

void setup() {

    Serial.begin(9600);

    Serial.println("SimpleTx Starting");
    radio.begin(); //loads a set of most commonly used radio settings
    radio.setDataRate( RF24_250KBPS ); 
    radio.setRetries(3,5); // delay, count
    radio.openWritingPipe(slaveAddress);
}

//====================

void loop() {

    delay(300);
    send();  
      Serial.print(dataToSend);
      Serial.print("  ack=");
      Serial.println(rslt);
}

//====================

void send() {

        // commented out because tx is not hearing ack.

    rslt = radio.write( &dataToSend, sizeof(dataToSend) );

        //    if (rslt) {
        //        Serial.println("  Acknowledge received");
        
    updateMessage();
    
        //    }
        //    else {
        //        Serial.println("  Tx failed");
        //    }
}

//================

void updateMessage() {

    dataToSend =(analogRead(A0));
}

Second sketch (below) is for displaying the potentiometer data (0 to 1023) on the serial monitor.

// Receives Pot Value displays on Serial Monitor

#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>

#define CE_PIN   9
#define CSN_PIN 10

int dataReceived;
const byte thisSlaveAddress[5] = {0x52,0x78,0x41,0x41,0x41};
bool newData = false;

RF24 radio(CE_PIN, CSN_PIN); // Create a Radio

//===========

void setup() {

    Serial.begin(9600);

    Serial.println("SimpleRx Starting");
    radio.begin();
    radio.setDataRate( RF24_250KBPS );
    radio.openReadingPipe(1, thisSlaveAddress);
    radio.startListening();
}

//=============

void loop() {
    getData();
    showData();
}

//==============

void getData() {
    if ( radio.available() ) {
      radio.read( &dataReceived, sizeof(dataReceived) );
        newData = true;
       
    }
}

void showData() {
    if (newData == true) {
        Serial.println(dataReceived);
        newData = false;
    }
}