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使用nRF24L01p在Arduino和Raspberry Pi之間進行通信

[英]Communication between Arduino and Raspberry Pi using nRF24L01p

 原文  2019-04-10 14:48:55  5   1    c#/ arduino/ raspberry-pi3/ windows-10-iot-core

問題描述

Arduino連接 Pi連接

我想使用nRF24L01p模塊在Arduino和Raspberry Pi（運行win10 iot）之間建立通信。 我使用“IS_nRF24L01p”nuget包作為模塊的驅動程序。 我的arduino正在發送一個“Hello World”字符串。 在這種情況下，RPi是接收器，程序只是為了檢查它們的通信是否已建立。 但我不能這樣。 是否因為收到的數據事件未被觸發？ 或者是配置不正確。 在此先感謝您的幫助。

發送器（Arduino）代碼 

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

RF24 radio(7, 8);

const byte rxAddr[6] = "00001";

void setup()
{
  Serial.begin(9600);
  radio.begin();
  radio.setRetries(15, 15);
  radio.setChannel(10);
  radio.openWritingPipe(rxAddr);
  radio.stopListening();
}

void loop()
{
  const char text[] = "Hello World";
  radio.write(&text, sizeof(text));

  delay(1000);
  Serial.println("Sent."); // TO check whether the data is sent.

}

接收器（Raspberry Pi）代碼 

using System;
using Windows.UI.Xaml.Controls;
using Windows.Devices.Spi;
using IS_nRF24L01p;
using System.Threading.Tasks;

// The Blank Page item template is documented at https://go.microsoft.com/fwlink/?LinkId=402352&clcid=0x409

namespace New
{

    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class MainPage : Page
    {
        public nRF24L01P nRf24 = new nRF24L01P();
        public MainPage()
        {
            this.InitializeComponent();
            setup();

        }



        private void setup()
        {
            System.Diagnostics.Debug.WriteLine("Initialize MTPNordic");
            nRf24.InitNordicSPI(new SpiConnectionSettings(0), 3000000, 12, 13);
            RFConfiguration();
            }

        private void RFConfiguration()
        {
            byte configByte;
            nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.RF_CH, new byte[] { 10 });

            configByte = 0;
            nRf24.SetRegisterBit(ref configByte, true, 0);
            nRf24.SetRegisterBit(ref configByte, true, 1);
            nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.SETUP_AW, new byte[] { configByte });

            configByte = 0;
            nRf24.SetRegisterBit(ref configByte, true, 1);
            nRf24.SetRegisterBit(ref configByte, true, 2);
            nRf24.SetRegisterBit(ref configByte, false, 3);
            nRf24.SetRegisterBit(ref configByte, true, 5);
            nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.RF_SETUP, new byte[configByte]);

            nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.SETUP_RETR, new byte[] { 0x23 });
            nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.FEATURE, new byte[] { System.Convert.ToByte(Math.Pow(2, 2)) });
            nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.DYNPD, new byte[] { 0x3F });
            nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.EN_AA, new byte[] { 0x1 });
            nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.TX_ADDR, new byte[] { 0x30, 0x30, 0x30, 0x30, 0x31 });
            nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.EN_RXADDR, new byte[] { 0x3 });

            SetAsPRX();
            nRf24.SetChipEnable(true);
            Task.Delay(1);
            System.Diagnostics.Debug.WriteLine("Finish RFConfiguration()");
        }

        private void SetAsPRX()
        {
            byte configByte;
            nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.RX_ADDR_P0, new byte[] { 0x30, 0x30, 0x30, 0x30, 0x31 });

            configByte = 0;
            nRf24.SetRegisterBit(ref configByte, true, 0);   
            nRf24.SetRegisterBit(ref configByte, true, 1);     
            nRf24.SetRegisterBit(ref configByte, true, 2); 
            nRf24.SetRegisterBit(ref configByte, true, 3);
            nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.CONFIG, new byte[] { configByte });
            nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.STATUS, new byte[] { 0xE });

            byte[] StatusBuffer = null;
            nRf24.FlushRXFIFO();
            StatusBuffer = nRf24.ReadRegister(IS_nRF24L01p.Common.Registers.STATUS);
            nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.STATUS, new byte[] { System.Convert.ToByte(StatusBuffer[0] | 0x40) });
            System.Diagnostics.Debug.WriteLine("Finish SetAsPrx()");
        }

        private void nRf24_OnDataReceived(object sender, nRF24L01P.DataReceivedEventArgs e)
        {
            int PayloadLength = e.Payload.Length;
            string ReceivedString = "Data Received.";
            System.Diagnostics.Debug.WriteLine(ReceivedString); // TO check if the program enter this function == Data Received
        }

    }
}

從調試輸出更新 

'New.exe' (CoreCLR: DefaultDomain): Loaded 'C:\Data\Programs\WindowsApps\Microsoft.NET.CoreRuntime.2.1_2.1.26124.5_arm__8wekyb3d8bbwe\System.Private.CoreLib.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'New.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\b55d8275-9b3c-41b5-9a76-be21517cd280VS.Debug_ARM.New\entrypoint\New.exe'. Symbols loaded.
'New.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\b55d8275-9b3c-41b5-9a76-be21517cd280VS.Debug_ARM.New\System.Runtime.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'New.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\b55d8275-9b3c-41b5-9a76-be21517cd280VS.Debug_ARM.New\WinMetadata\Windows.winmd'. Module was built without symbols.
'New.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\b55d8275-9b3c-41b5-9a76-be21517cd280VS.Debug_ARM.New\mscorlib.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'New.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\b55d8275-9b3c-41b5-9a76-be21517cd280VS.Debug_ARM.New\System.Runtime.InteropServices.WindowsRuntime.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'New.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\b55d8275-9b3c-41b5-9a76-be21517cd280VS.Debug_ARM.New\System.Runtime.WindowsRuntime.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'New.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\b55d8275-9b3c-41b5-9a76-be21517cd280VS.Debug_ARM.New\System.Runtime.WindowsRuntime.UI.Xaml.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'New.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\b55d8275-9b3c-41b5-9a76-be21517cd280VS.Debug_ARM.New\System.Collections.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'New.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\b55d8275-9b3c-41b5-9a76-be21517cd280VS.Debug_ARM.New\System.Threading.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'New.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\b55d8275-9b3c-41b5-9a76-be21517cd280VS.Debug_ARM.New\IS_nRF24L01p.dll'. Cannot find or open the PDB file.
'New.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\b55d8275-9b3c-41b5-9a76-be21517cd280VS.Debug_ARM.New\System.Private.Uri.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'New.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\b55d8275-9b3c-41b5-9a76-be21517cd280VS.Debug_ARM.New\System.Diagnostics.Debug.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'New.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\b55d8275-9b3c-41b5-9a76-be21517cd280VS.Debug_ARM.New\System.Threading.Tasks.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
Initialize MTPNordic
'New.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\b55d8275-9b3c-41b5-9a76-be21517cd280VS.Debug_ARM.New\Microsoft.VisualBasic.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
'New.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\b55d8275-9b3c-41b5-9a76-be21517cd280VS.Debug_ARM.New\netstandard.dll'. Module was built without symbols.
'New.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Data\Users\DefaultAccount\AppData\Local\DevelopmentFiles\b55d8275-9b3c-41b5-9a76-be21517cd280VS.Debug_ARM.New\System.Runtime.Extensions.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
Finish SetAsPrx()
Finish RFConfiguration()
The thread 0xf30 has exited with code 0 (0x0).

1 個解決方案

解決方案1
 0 已采納  2019-04-11 08:05:20

從您提供的代碼中，我找不到注冊nRf24_OnDataReceived事件處理程序的行。 請嘗試像下面的代碼一樣添加處理程序。 

    private void setup()
    {
        System.Diagnostics.Debug.WriteLine("Initialize MTPNordic");
        nRf24.InitNordicSPI(new SpiConnectionSettings(0), 3000000, 12, 13);
        nRf24.OnDataReceived += new nRF24L01P.OnDataReceivedEventHandler(nRf24_OnDataReceived);
        RFConfiguration();
    }

很抱歉，我沒有nRF24L01p模塊來測試此問題。 如果它對您有幫助，請隨時告訴我。

更新：

Transmitter（Arduino）代碼： 

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

RF24 radio(7, 8);
const byte address[6] = "00001";

void setup()
{
  Serial.begin(9600);
  radio.begin();
  radio.setRetries(15, 15);
  radio.setChannel(10);
  radio.setPALevel(RF24_PA_MIN);
  radio.openWritingPipe(address);
  radio.stopListening();
}

void loop()
{
  const char text[] = "Hello World";
  radio.write(&text, sizeof(text));

  delay(1000);
  Serial.println("Sent."); // TO check whether the data is sent.

}

Receiver（Raspberry Pi）代碼： 

    private void SetAsPRX()
    {
        byte configByte;
        nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.RX_ADDR_P1, new byte[] { 0xF0, 0xF0, 0xF, 0x0F, 0x0E1 });

        configByte = 0;
        nRf24.SetRegisterBit(ref configByte, true, 0);
        nRf24.SetRegisterBit(ref configByte, true, 1);
        nRf24.SetRegisterBit(ref configByte, true, 2);
        nRf24.SetRegisterBit(ref configByte, true, 3);
        nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.CONFIG, new byte[] { configByte });
        nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.STATUS, new byte[] { 0xE });

        byte[] StatusBuffer = null;
        nRf24.FlushRXFIFO();
        StatusBuffer = nRf24.ReadRegister(IS_nRF24L01p.Common.Registers.STATUS);
        nRf24.WriteRegister(IS_nRF24L01p.Common.Registers.STATUS, new byte[] { System.Convert.ToByte(StatusBuffer[0] | 0x40) });
        System.Diagnostics.Debug.WriteLine("Finish SetAsPrx()");
    }

當發送方發送數據時，數據包中的地址采用“TX_ADD”的地址。 該地址是接收端的幾個接收信道（6個信道）之一。 接收到數據后，接收端的對應通道響應，采用響應報文中的地址。 對應於接收信道的地址是發送端的發送信道地址，發送端使用信道0作為默認應答最多，因此發送端的信道0地址應設置為發送信道地址。

最好使用1-5個通道進行接收，因為在發送時將使用0個通道接收響應，並且在發送數據之前，另一方的接收通道的地址將被寫入發送通道。

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