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Update Applications.
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‎ArduinoI2CCommunication/ArduinoI2CCommunication.ino renamed to ‎ArduinoI2CComm/ArduinoI2CComm.ino

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@@ -18,9 +18,8 @@ void loop()
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void ReceiveData(int byte_count)
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{
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for (int i = 0; i < byte_count; i++) {
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for (int i = 0; i < byte_count; i++)
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data_to_echo = Wire.read();
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}
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}
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void SendData()

‎README.md

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# RaspberryPi-Arduino-I2C-Communication
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Applications involving I2C communication between Raspberry Pi and Arduino are available. Data transfers occur using I2C communication between Raspberry Pi and Arduino.
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# RaspberryPi-Arduino-I2C-Comm
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Contains Raspberry Pi and Arduino applications. The purpose of the applications is to perform data transfers between Raspberry Pi and Arduino using I2C communication.
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Raspberry Pi WiringPi Library: To enable I2C communication on Raspberry Pi, the WiringPi library is used. To install the WiringPi library on Raspberry Pi:
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RaspberryPiI2CComm:
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Programming Language: C++ Programming Language
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Framework: Qt5 - Qt 5.11.3
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IDE: Qt Creator 4.8.2
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Device: Raspberry Pi-3, Raspberry Pi-4
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Library:
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- Raspberry Pi WiringPi: The WiringPi library is included to use I2C communication on Raspberry Pi. To install the WiringPi library on Raspberry Pi:
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Check if the system is up to date.
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@@ -31,12 +43,14 @@ Compile and install the source code:
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After installing the WiringPi library on Raspberry Pi, the I2C option should be enabled from the Raspberry Pi interface.
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Arduino Used: Arduino Uno, Arduino Mega
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Raspberry Pi Connection Diagram: The Raspberry Pi's I2C pins are connected to the Arduino's I2C pins.
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Arduino IDE Version: 2.2.0
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ArduinoI2CComm:
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Raspberry Pi Used: RPI3, RPI4
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Programming Language: C/C++ Programming Language
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Raspberry Pi IDE Version: QT IDE
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IDE: Arduino IDE Version - 2.2.0
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Arduino Used: Arduino Uno, Arduino Mega
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Arduino - Raspberry Pi Connection Diagram: Connections are made through standard I2C pins.
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Arduino Connection Diagram: The Arduino's I2C pins are connected to the Raspberry Pi's I2C pins.

‎RaspberryPiI2CCommunication/RaspberryPiI2CCommunication.pro renamed to ‎RaspberryPiI2CComm/RaspberryPiI2CComm.pro

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@@ -1,7 +1,7 @@
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QT -= gui
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CONFIG += c++11 console
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CONFIG -= app_bundle
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CONFIG -= app_bundle
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DEFINES += QT_DEPRECATED_WARNINGS
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LIBS += -lwiringPi
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‎RaspberryPiI2CCommunication/RaspberryPiI2CCommunication.pro.user renamed to ‎RaspberryPiI2CComm/RaspberryPiI2CComm.pro.user

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@@ -1,6 +1,6 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE QtCreatorProject>
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<!-- Written by QtCreator 4.8.2, 2020-05-17T09:23:53. -->
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<!-- Written by QtCreator 4.8.2, 2025-01-18T23:23:16. -->
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<qtcreator>
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<data>
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<variable>EnvironmentId</variable>
@@ -66,7 +66,7 @@
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<value type="int" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
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<value type="int" key="ProjectExplorer.Target.ActiveRunConfiguration">0</value>
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<valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.0">
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<value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/pi/build-RaspberryPiI2CCommunication-Desktop-Debug</value>
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<value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/pi/build-RaspberryPiI2CComm-Desktop-Debug</value>
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<valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
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<valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
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<value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
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<value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
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</valuemap>
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<valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.1">
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<value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/pi/build-RaspberryPiI2CCommunication-Desktop-Release</value>
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<value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/pi/build-RaspberryPiI2CComm-Desktop-Release</value>
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<valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
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<valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
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<value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
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<value type="bool" key="Qt4ProjectManager.Qt4BuildConfiguration.UseShadowBuild">true</value>
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</valuemap>
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<valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.2">
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<value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/pi/build-RaspberryPiI2CCommunication-Desktop-Profile</value>
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<value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/pi/build-RaspberryPiI2CComm-Desktop-Profile</value>
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<valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
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<valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
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<value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
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</valuelist>
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<value type="int" key="PE.EnvironmentAspect.Base">2</value>
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<valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
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<value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">RaspberryPiI2CCommunication</value>
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<value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">RaspberryPiI2CComm</value>
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<value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
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<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4RunConfiguration:/home/pi/RaspberryPiI2CCommunication/RaspberryPiI2CCommunication.pro</value>
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<value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.ProFile">RaspberryPiI2CCommunication.pro</value>
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<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">Qt4ProjectManager.Qt4RunConfiguration:/home/pi/RaspberryPiI2CComm/RaspberryPiI2CComm.pro</value>
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<value type="QString" key="Qt4ProjectManager.Qt4RunConfiguration.ProFile">RaspberryPiI2CComm.pro</value>
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<value type="QString" key="RunConfiguration.Arguments"></value>
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<value type="uint" key="RunConfiguration.QmlDebugServerPort">3768</value>
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<value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
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<value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
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<value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
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<value type="QString" key="RunConfiguration.WorkingDirectory"></value>
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<value type="QString" key="RunConfiguration.WorkingDirectory.default">/home/pi/build-RaspberryPiI2CCommunication-Desktop-Debug</value>
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<value type="QString" key="RunConfiguration.WorkingDirectory.default">/home/pi/build-RaspberryPiI2CComm-Desktop-Debug</value>
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</valuemap>
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<value type="int" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
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</valuemap>

‎RaspberryPiI2CCommunication/main.cpp renamed to ‎RaspberryPiI2CComm/main.cpp

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@@ -9,16 +9,15 @@ int main(int argc, char *argv[])
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QCoreApplication a(argc, argv);
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int fd = wiringPiI2CSetup(DEVICE_ID);
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if(fd == -1)
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{
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if (fd == -1) {
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std::cout << "Failed to init I2C communication.\n";
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return -1;
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}
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std::cout << "I2C Communication successfully setup.\n";
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uint8_t data_to_send = 17;
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wiringPiI2CWrite(fd, data_to_send);
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std::cout << "Send data : " << (int)data_to_send << "\n";
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std::cout << "Send data : " << static_cast<int>(data_to_send) << "\n";
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int received_data = wiringPiI2CRead(fd);
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std::cout << "Data received : " << received_data << "\n";

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