nRF24L01P ตัวที่มีเสาครับ มีปัญหาการส่ง

ลองเช็คจากกระทู้นี้ครับ https://www.arduinoall.com/webboard/viewtopic/46

และอีกที่ https://arduino-info.wikispaces.com/Nrf24L01-2.4GHz-HowTo#PP

ใครยังไม่ได้ ลองตัวนี้ดูครับ ต่อวงจรเหมือนกัน

รับและสงใน file เดียวกัน

อ้างอิง http://shanes.net/another-nrf24l01-sketch-string-sendreceive/

/*

  nRF Serial Chat

  Date : 22 Aug 2013

  Author : Stanley Seow

  e-mail : stanleyseow@gmail.com

  Version : 0.90

  Desc :

  I worte this simple interactive serial chat over nRF that can be used for both sender

  and receiver as I swapped the TX & RX addr during read/write operation.

  It read input from Serial Monitor and display the output to the other side

  Serial Monitor or 16x2 LCD (if available)... like a simple chat program.

  Max payload is 32 bytes for radio but the serialEvent will chopped the entire buffer

  for next payload to be sent out sequentially.

*/

#include <SPI.h>

#include "nRF24L01.h"

#include "RF24.h"

#include "printf.h"

/* 1 - GND

  2 - VCC 3.3V ONLY!!!

  3 - CE to Arduino pin 9

  4 - CSN to Arduino pin 10

  5 - SCK to Arduino pin 13

  6 - MOSI to Arduino pin 11

  7 - MISO to Arduino pin 12

  8 - NA

  This sketch receives and sent strings from nrf24

  and prints them out via serial.

*/

int msg[1]; //Holding your sent message

#define CE_PIN 8

#define CSN_PIN 7

RF24 radio(CE_PIN, CSN_PIN);

// Radio pipe addresses for the 2 nodes to communicate.

const uint64_t pipe = 0xE8E8F0F0E1LL;

String theMessage = ""; //Received Message

String inputString = ""; //Hold incoming Message from Serial

void setup(void) {

  Serial.begin(9600);

  while (!Serial) {} //Needed for Leonardo

  radio.begin(); //Start the radio

  radio.setRetries(15, 15); // optionally, increase the delay between retries & # of retries

  radio.setPayloadSize(8);// optionally, reduce the payload size.

  radio.openWritingPipe(pipe);

  radio.openReadingPipe(1, pipe);

  radio.startListening();

}

void loop(void) {

  if (radio.available()) { //Wait for incoming message from radio

    receiveText(); //Call funtion to receive message

  }

}

void receiveText() {

  radio.read(msg, 1); //Read radio 1 char at a time

  char theChar = msg[0]; //Stor it in theChar

  if (msg[0] != 2) { //If you get \n char then

    theMessage.concat(theChar); //link all together

  }

  else { //If done then

    Serial.println(theMessage); //Print to serial

    theMessage = ""; //Clear Message

  }

}

//This is same as EXAMPLE CODE it just works this better. NO ERRORS

void serialEvent() { //if something happens in serial do this

  while (Serial.available()) { //Do till you get all from serial

    char inChar = (char)Serial.read(); // get the new byte:

    delay(3); //*****I add this else you get broken messages******

    inputString += inChar;// add it to the inputString:

  }

  sentText(); //Call function to sent message to other radio

}

void sentText() {

  radio.stopListening(); // First, stop listening so we can talk.

  // String theMessage = inputString; //

  int messageSize = inputString.length(); //Calculate String length

  for (int i = 0; i < messageSize; i++) { //Sending 1 char at a time to other radio

    int charToSend[1]; //Hold the char to be send

    charToSend[0] = inputString.charAt(i); //First char stored

    bool ok = radio.write(charToSend, 1); //Sent char

    if (ok) //This is not needed but will make you feel better

      Serial.println("OK...");

    else

      Serial.println("ERROR...");

  }

  msg[0] = 2; //send the 'terminate string' value...

  radio.write(msg, 1);

  inputString = ""; // clear the string

  radio.startListening(); // Now, continue listening

}

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