Arduino serial7Segment DRO XYZ

net Xposition halui.axis.0.pos-relative serialcon.xposition net Xposition xxxx.xposition

component serialdro "This component services the arduino DRO display"; pin in float xposition "Receives current position from Xpos"; pin in float yposition "Receives current position from Ypos"; pin in float zposition "Receives current position from Zpos"; option singleton yes; // makes no sense to have more than one of these components running option userspace yes; author "ArcEye arceye@mgware.co.uk"; license "GPL"; ;; #include <stdio.h> /* Standard input/output definitions */ #include <stdlib.h> #include <stdint.h> /* Standard types */ #include <string.h> /* String function definitions */ #include <unistd.h> /* UNIX standard function definitions */ #include <fcntl.h> /* File control definitions */ #include <errno.h> /* Error number definitions */ #include <termios.h> /* POSIX terminal control definitions */ #include <sys/ioctl.h> #define BAUDRATE B115200 #define DEVICE "/dev/ttyACM0" #define _POSIX_SOURCE 1 /* POSIX compliant source */ // predefs of later functions int serialport_init(); struct termios toptions;; // port setup void user_mainloop(void) { char buffer[50]; char ch; int fd = serialport_init(); while(fd != -1) { // approx 1/4 sec appears to be optimum period for a steady display with min lag // may differ on another system with different thread speeds usleep(250000); FOR_ALL_INSTS() { // %08.03f = 8 digit including decimal point and sign, leading zeros & 3 digit precision with trailing zeros bzero(buffer, 50); sprintf(buffer, "X%08.03fY%08.03fZ%08.03f", xposition, yposition, zposition ); write(fd, buffer, sizeof(buffer)); } } close(fd); exit(0); } //###################################################################### int serialport_init() { int fd; fd = open(DEVICE, O_RDWR | O_NOCTTY | O_NDELAY); if (fd == -1) { perror("init_serialport: Unable to open port "); return -1; } if (tcgetattr(fd, &toptions) < 0) { perror("init_serialport: Couldn't get term attributes"); return -1; } speed_t brate = BAUDRATE; cfsetispeed(&toptions, brate); cfsetospeed(&toptions, brate); // 8N1 toptions.c_cflag &= ~PARENB; toptions.c_cflag &= ~CSTOPB; toptions.c_cflag &= ~CSIZE; toptions.c_cflag |= CS8; // no flow control toptions.c_cflag &= ~CRTSCTS; toptions.c_cflag |= CREAD | CLOCAL; // turn on READ & ignore ctrl lines toptions.c_iflag &= ~(IXON | IXOFF | IXANY); // turn off s/w flow ctrl toptions.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG); // make raw toptions.c_oflag &= ~OPOST; // make raw // see: http://unixwiz.net/techtips/termios-vmin-vtime.html toptions.c_cc[VMIN] = 0; toptions.c_cc[VTIME] = 20; if( tcsetattr(fd, TCSANOW, &toptions) < 0) { perror("init_serialport: Couldn't set term attributes"); return -1; } return fd; }

#include <SoftwareSerial.h> #include "Wire.h" #include "LiquidCrystal.h" /* The circuit: using i2c backpack * 5V to Arduino 5V pin * GND to Arduino GND pin * CLK to Analog #5 * DAT to Analog #4 */ // Connect via i2c, default address #0 (A0-A2 not jumpered) LiquidCrystal lcd(0); char XReading[9]; // 0000.000\0 pos char YReading[9]; char ZReading[9]; void zeroX() { for(int x = 0; x < 9; x++) XReading[x] = 0;} void zeroY() { for(int x = 0; x < 9; x++) YReading[x] = 0;} void zeroZ() { for(int x = 0; x < 9; x++) ZReading[x] = 0;} void setup() { // start serial port at 9600 bps: Serial.begin(115200); // set up the LCD's number of rows and columns: lcd.begin(20, 4); // Print a message to the LCD.bool bMachine = false; lcd.setBacklight(HIGH); lcd.noAutoscroll(); // set the initial field identifiers lcd.setCursor(0, 0); lcd.print("X*"); lcd.setCursor(0, 1); lcd.print("Y "); lcd.setCursor(0, 2); lcd.print("Z "); zeroX(); zeroY(); zeroZ(); } void loop() { int x; char ch; if(Serial.available() >= 9) { ch = Serial.read(); switch(ch) { case 'X': while(Serial.available() < 8) delay(10); for(x = 0; x < 8; x++) XReading[x] = Serial.read(); lcd.setCursor(0, 0); lcd.print("X"); lcd.setCursor(2, 0); lcd.print(XReading); zeroX(); break; case 'Y': while(Serial.available() < 8) delay(10); for(x = 0; x < 8; x++) YReading[x] = Serial.read(); lcd.setCursor(0, 1); lcd.print("Y"); lcd.setCursor(2, 1); lcd.print(YReading); zeroY(); break; case 'Z': while(Serial.available() < 8) delay(10); for(x = 0; x < 8; x++) ZReading[x] = Serial.read(); lcd.setCursor(0, 2); lcd.print("Z"); lcd.setCursor(2, 2); lcd.print(ZReading); zeroZ(); break; default: break; } } }