Ryanhu1015

void sonar()
{
  float duration, distance;
  digitalWrite(trig, HIGH);
  delayMicroseconds(100);
  digitalWrite(trig, LOW);//change trig pinmode to spark the signal
  
  duration = pulseIn (echo, HIGH);// the duration of state of echo remaining HIGH
  
  distance = duration/58;// 58 is from (duration/2)/29

Ryanhu1015

#include <Wire.h>
#include <Colorduino.h>
byte number6[4][8] = {{0,0,0,0,0,0,0,0},{1,0,0,1,1,1,1,0},{1,0,0,1,0,0,1,0},{1,1,1,1,1,1,1,0}};
void setup()
{
  //skip this part
}

void loop()
{

Ryanhu1015

byte received[8][8];
void setup()
{
  //skip this part
}
void loop()
{
  for (byte x = 0; x < 8; x++)
  {
    for (byte y = 0; y < 8; y++)

Ryanhu1015

unsigned long timeNow = 0;
unsigned long timeLast = 0;
int seconds = 0;
int minutes = 0;
int hours = 0;
int days = 0;

timeNow = millis()/1000;// millis is the function i have mentioned above
seconds = timeNow - timeLast;

Ryanhu1015

IPAddress timeServerIP; // time.nist.gov NTP server address
const char *ntpServerName = "tick.stdtime.gov.tw";// this is one of the NTP server

const int NTP_PACKET_SIZE = 48; 
byte packetBuffer[NTP_PACKET_SIZE];

WiFiUDP udp;

unsigned long sendNTPpacket(IPAddress &address)
{

Ryanhu1015

extern "C"
{
#include "user_interface.h"
}

os_timer_t myTimer;

void user_init(void) // the function will be set in setup to trigger the ISR function
{
  os_timer_setfn(&myTimer, timerCallback, NULL);

Ryanhu1015

//there are three option
char *ntpServerName = "tick.stdtime.gov.tw";
char *ntpServerName2 = "clock.stdtime.gov.tw";
char *ntpServerName3 = "time.stdtime.gov.tw";

void setup()
{
  //.skip this part
  //.
  //.

Ryanhu1015

#define EN        8 // state LOW works
#define X_DIR     5
#define Y_DIR     6
#define X_STP     2
#define Y_STP     3

void setup() {
  Serial.begin(115200); 
  pinMode(X_DIR, OUTPUT); //the initail pin mode of stepping motor
  pinMode(X_STP, OUTPUT);

Ryanhu1015

void steppingMotor()
{
  digitalWrite(X_STP, HIGH);
  digitalWrite(Y_STP, HIGH);
  delayMicroseconds(1);
  digitalWrite(X_STP, LOW);
  digitalWrite(Y_STP, LOW);
}

Ryanhu1015

long record = 0;
byte rightEchoState;
byte lastRightState = LOW;
float awayFromRight;

void loop(){
  record++;
  rightStateChange();
}