mirror of
https://github.com/isaac879/Pan-Tilt-Mount.git
synced 2026-08-16 13:03:15 +02:00
359 lines
14 KiB
C++
359 lines
14 KiB
C++
/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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/*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE
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*
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* Code written by isaac879
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*/
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/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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#include <stdio.h>
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#include <Windows.h>
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#include <Xinput.h>
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#include <iostream>
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#include <string>
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#include <fstream>
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/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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#define UP_BUTTON 1
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#define DOWN_BUTTON 2
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#define LEFT_BUTTON 4
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#define RIGHT_BUTTON 8
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#define MENU_BUTTON 16
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#define VIEW_BUTTON 32
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#define L_BUTTON 64
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#define R_BUTTON 128
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#define LB_BUTTON 256
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#define RB_BUTTON 512
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#define A_BUTTON 4096
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#define B_BUTTON 8192
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#define X_BUTTON 16384
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#define Y_BUTTON 32768
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#define INSTRUCTION_BYTES_PAN_SPEED 1
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#define INSTRUCTION_BYTES_TILT_SPEED 2
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#define INSTRUCTION_BYTES_PAN_TILT_SPEED 3
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#define INPUT_DEADZONE 1000
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//Flags
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bool portOpenFlag = false; //The flag used to determin if the serial port for the Arduino Nano is opened
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HANDLE hSerial;// Serial handle
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/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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byte getBytesFromInt(short sourceInt, unsigned int byteNumber) {//Gets a byte from an int. byte number should be 0 for the 8 least signigicant bits or 1 for the most fignificant bits
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byte byteValue = (sourceInt >> (8 * byteNumber)) & 0xFF;
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return byteValue;
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}
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/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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void openSerial(LPCSTR port){
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if (portOpenFlag == false){//If the port is not already open
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hSerial = CreateFile(port, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);//Set the Com port to the correct arduino one
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if (hSerial == INVALID_HANDLE_VALUE){
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std::cout << "Error: invalid com port handle. Attempted to open: " << port << std::endl;
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}
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else{
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portOpenFlag = true;
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std::cout << "Successfully opened: " << port << std::endl;
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}
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}
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}
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/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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int closeSerial(){
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if (portOpenFlag == true){//If the port is open
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if (CloseHandle(hSerial) == 0){
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std::cout << "Error\n" << stderr << std::endl;
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return -1;
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}
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portOpenFlag = false;
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printf("Serial port closed...\n");
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return 1;
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}
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return 0;
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}
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/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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int serialConnect(LPCSTR portName){
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std::cout << "Attempting to open serial port " << portName << std::endl;
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openSerial(portName);//Open the serial port
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// Declare variables and structures
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DCB dcbSerialParams = { 0 };
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dcbSerialParams.DCBlength = sizeof(dcbSerialParams);//why do i need this?
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if (GetCommState(hSerial, &dcbSerialParams) == 0){
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closeSerial();
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return -1;
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}
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else{
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dcbSerialParams.BaudRate = CBR_57600; //Set device parameters (57600 baud, 1 start bit, 1 stop bit, no parity)
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dcbSerialParams.ByteSize = 8;
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dcbSerialParams.StopBits = ONESTOPBIT;
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dcbSerialParams.Parity = NOPARITY;
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dcbSerialParams.fDtrControl = DTR_CONTROL_DISABLE; //Stops the Arduino resetting after connecting
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}
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if(SetCommState(hSerial, &dcbSerialParams) == 0){
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closeSerial();
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return -1;
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}
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// Set COM port timeout settings
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COMMTIMEOUTS timeouts = { 0 };
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timeouts.ReadIntervalTimeout = 50;
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timeouts.ReadTotalTimeoutConstant = 50;
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timeouts.ReadTotalTimeoutMultiplier = 10;
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timeouts.WriteTotalTimeoutConstant = 50;
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timeouts.WriteTotalTimeoutMultiplier = 10;
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if(SetCommTimeouts(hSerial, &timeouts) == 0){
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closeSerial();
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return 1;
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}
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return 0;
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}
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/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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int serialWrite(char data[], int lengthOfArray){
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DWORD bytes_written;
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if (!WriteFile(hSerial, data, lengthOfArray, &bytes_written, NULL)) {
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closeSerial();
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return -1;
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}
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return 0;
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}
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/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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void printIncomingData(void){
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COMSTAT status;
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DWORD errors;
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DWORD bytesRead;//Number of bytes that have been read
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while(1){
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ClearCommError(hSerial, &errors, &status); //Use the ClearCommError function to get status info on the Serial port
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if(status.cbInQue == 0) break;
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char* dataBuffer = new char[status.cbInQue + 1]; //buffer the size of the data available to be read
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dataBuffer[status.cbInQue] = '\0'; //adds a null terminator to the end of the buffer
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if(ReadFile(hSerial, dataBuffer, status.cbInQue, &bytesRead, NULL)){ //Try to read the require number of chars, and return the number of read bytes on success
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std::cout << dataBuffer;// << std::endl;
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}
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delete[] dataBuffer;
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Sleep(5); //Wait for 2ms before checking if more data has come in
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}
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}
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/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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void sendCommand(char command){
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char data[] = {command}; //Data array to send
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serialWrite(data, sizeof(data));
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}
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/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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void sendCharArray(char *array){
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serialWrite(array, (int)strlen(array));
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}
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/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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int sendStepSpeed(int command, short num){
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char data[3]; //Data array to send
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data[0] = command;
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data[1] = getBytesFromInt(num, 1);//Gets the 8 MSBs
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data[2] = getBytesFromInt(num, 0);//Gets the 8 LSBs
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serialWrite(data, sizeof(data)); //Send the command and the 4 bytes of data
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return 0;
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}
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/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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int sendPanTiltStepSpeed(int command, int num){
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char data[5]; //Data array to send
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data[0] = command;
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data[1] = (num >> (8 * 3)) & 0xFF; //Gets the most significant byte
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data[2] = (num >> (8 * 2)) & 0xFF; //Gets the second most significant byte
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data[3] = (num >> (8 * 1)) & 0xFF; //Gets the third most significant byte
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data[4] = num & 0xFF; //Gets the least significant byte
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serialWrite(data, sizeof(data)); //Send the command and the 4 bytes of data
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return 0;
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}
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/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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std::string getPortName(std::string filePath){
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std::string line;
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std::cout << "Reading port name from: " << filePath << std::endl;
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std::ifstream readfile(filePath);
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if(readfile.is_open()){
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if (getline(readfile, line)){
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std::cout << "Port read from the file: " << line << std::endl;
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}
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readfile.close();
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}
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else {
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std::cout << "Error: Unable to open serial_port.txt" << std::endl;
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}
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return line;
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}
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/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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int panTiltInit(void){
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//Connects to the com port that the Arduino is connected to.
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for(int i = 0; (i < 5) && (serialConnect(getPortName("D:\\Documents\\Projects\\Pan Tilt Mount\\serial_port.txt").c_str()) != 0 ); i++){
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Sleep(1000);
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if(i == 4){
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std::cout << "Error: Unable to open serial port after 5 attempts..." << std::endl;
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return -1;
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}
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}
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return 0;
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}
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/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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int main(void){
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panTiltInit();
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DWORD dwResult;
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WORD lastwButtons = 0;
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DWORD lastDwPacketNumber = 0;
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for(DWORD i = 0; i < XUSER_MAX_COUNT; i++){
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XINPUT_STATE state;
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ZeroMemory(&state, sizeof(XINPUT_STATE));
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dwResult = XInputGetState(i, &state); //Simply get the state of the controller from XInput.
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if(dwResult == ERROR_SUCCESS){ //Controller is connected
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printf("Connected.\n");
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while(1){
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printIncomingData();
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XInputGetState(i, &state);
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//printf("dw packet number: %d\n", state.dwPacketNumber);
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if(state.dwPacketNumber != lastDwPacketNumber){
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float RX = state.Gamepad.sThumbRX; //Get right analog stick X value
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if(abs(RX) < XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE){
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RX = 0;
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}
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else if(RX > 0){
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RX -= XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE;
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}
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else if(RX < 0){
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RX += XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE;
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}
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short RXShort = -(short(((float)RX * 2000.0) / (32767.0 - XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE))); //Normalise to a range of -2000 to 2000
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float RY = state.Gamepad.sThumbRY; //Get right analog stick Y value
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if(abs(RY) < XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE){
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RY = 0;
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}
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else if(RY > 0){
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RY -= XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE;
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}
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else if(RY < 0){
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RY += XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE;
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}
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short RYShort = -(short(((float)RY * 2000.0) / (32767.0 - XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE))); //Normalise to a range of -2000 to 2000
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int RXRYInt = (RXShort << 16) + RYShort; //Combine both the X and Y 2 byte short values into one 4 byte int value
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sendPanTiltStepSpeed(INSTRUCTION_BYTES_PAN_TILT_SPEED, RXRYInt); //send the combned X and Y values
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Sleep(10);
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if((lastwButtons & UP_BUTTON) < (state.Gamepad.wButtons & UP_BUTTON)){
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printf("Up: %d \n", (state.Gamepad.wButtons & UP_BUTTON));
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sendCharArray((char *)"["); //Up first element
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}
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if((lastwButtons & DOWN_BUTTON) < (state.Gamepad.wButtons & DOWN_BUTTON)){
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printf("Down: %d \n", ((state.Gamepad.wButtons & UP_BUTTON) >> 1));
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sendCharArray((char *)"]"); //down last element
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}
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if((lastwButtons & LEFT_BUTTON) < (state.Gamepad.wButtons & LEFT_BUTTON)){
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printf("Left: %d \n", ((state.Gamepad.wButtons & LEFT_BUTTON) >> 2));
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sendCharArray((char *)"<"); //left step back
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}
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if((lastwButtons & RIGHT_BUTTON) < (state.Gamepad.wButtons & RIGHT_BUTTON)){
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printf("Right: %d \n", ((state.Gamepad.wButtons & RIGHT_BUTTON) >> 3));
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sendCharArray((char *)">"); //right step forwards
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}
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if((lastwButtons & MENU_BUTTON) < (state.Gamepad.wButtons & MENU_BUTTON)){
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printf("Menu: %d \n", ((state.Gamepad.wButtons & MENU_BUTTON) >> 4));
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sendCharArray((char *)"A"); //Menu home
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}
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if((lastwButtons & VIEW_BUTTON) < (state.Gamepad.wButtons & VIEW_BUTTON)){
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printf("View: %d \n", ((state.Gamepad.wButtons & VIEW_BUTTON) >> 5));
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sendCharArray((char *)";1"); //views execute
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}
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if((lastwButtons & L_BUTTON) < (state.Gamepad.wButtons & L_BUTTON)){
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printf("L: %d \n", ((state.Gamepad.wButtons & L_BUTTON) >> 6));
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sendCharArray((char *)"m4"); //step mode
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}
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if((lastwButtons & R_BUTTON) < (state.Gamepad.wButtons & R_BUTTON)){
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printf("R: %d \n", ((state.Gamepad.wButtons & R_BUTTON) >> 7));
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sendCharArray((char *)"m16"); //sixteenth step mode
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}
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if((lastwButtons & LB_BUTTON) < (state.Gamepad.wButtons & LB_BUTTON)){
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printf("LB: %d \n", ((state.Gamepad.wButtons & LB_BUTTON) >> 8));
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sendCharArray((char *)"D300"); //add delay of 300ms
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}
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if((lastwButtons & RB_BUTTON) < (state.Gamepad.wButtons & RB_BUTTON)){
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printf("RB: %d \n", ((state.Gamepad.wButtons & RB_BUTTON) >> 9));
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sendCharArray((char *)"c"); //RB Shutter
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}
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if((lastwButtons & A_BUTTON) < (state.Gamepad.wButtons & A_BUTTON)){
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printf("A: %d \n", ((state.Gamepad.wButtons & A_BUTTON) >> 12));
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sendCharArray((char *)"#"); //A save position
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}
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if((lastwButtons & B_BUTTON) < (state.Gamepad.wButtons & B_BUTTON)){
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printf("B: %d \n", ((state.Gamepad.wButtons & B_BUTTON) >> 13));
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sendCharArray((char *)"C"); //B clear array
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}
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if((lastwButtons & X_BUTTON) < (state.Gamepad.wButtons & X_BUTTON)){
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printf("X: %d \n", ((state.Gamepad.wButtons & X_BUTTON) >> 14));
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sendCharArray((char *)"E"); //X edit position
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}
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if((lastwButtons & Y_BUTTON) < (state.Gamepad.wButtons & Y_BUTTON)){
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printf("Y: %d \n", ((state.Gamepad.wButtons & Y_BUTTON) >> 15));
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sendCharArray((char *)"R"); //Y status
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}
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//printf("LX: %d \t", state.Gamepad.sThumbLX);
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//printf("LY: %d \t", state.Gamepad.sThumbLY);
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//printf("RX: %d \t", state.Gamepad.sThumbRX);
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//printf("RY: %d \n", state.Gamepad.sThumbRY);
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//printf("LT: %d \t", state.Gamepad.bLeftTrigger);
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//printf("RT: %d \n", state.Gamepad.bRightTrigger);
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//printf("wButtons %d \n", state.Gamepad.wButtons);
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lastwButtons = state.Gamepad.wButtons;
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lastDwPacketNumber = state.dwPacketNumber;
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}
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}
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}
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else{ //Controller is not connected
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printf("Not Connected.\n");
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}
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}
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return 0;
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}
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/*------------------------------------------------------------------------------------------------------------------------------------------------------*/
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