- Wed Jun 15, 2016 1:36 pm
#49236
Hello
I want to display on the LCD timer that counts down to zero and then counts up from zero. Timer to be synchronized with the server in the local network via wifi. I want to synchronize every 2-3 seconds. Please help. My code:
This code works, but there are delays and the timer is not displayed smoothly.
I want to display on the LCD timer that counts down to zero and then counts up from zero. Timer to be synchronized with the server in the local network via wifi. I want to synchronize every 2-3 seconds. Please help. My code:
Code: Select all
#include <ESP8266WiFi.h>
#include <ArduinoJson.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
const char* ssid = "net";
const char* password = "password";
const char* host = "192.168.1.8";
//-----------------------------------------------------------------------------
byte bar1[8] =
{
0b11111,
0b11111,
0b11111,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000
};
byte bar2[8] =
{
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b11111,
0b11111,
0b11111
};
byte bar3[8] =
{
0b11111,
0b11111,
0b00000,
0b00000,
0b00000,
0b00000,
0b11111,
0b11111
};
byte bar4[8] =
{
0b11111,
0b11111,
0b11111,
0b11111,
0b11111,
0b11111,
0b11111,
0b11111
};
byte bar5[8] =
{
0b00000,
0b00000,
0b00001,
0b00011,
0b00011,
0b00001,
0b00000,
0b00000
};
byte bar6[8] =
{
0b00000,
0b00000,
0b10000,
0b11000,
0b11000,
0b10000,
0b00000,
0b00000
};
byte bar7[8] =
{
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00000,
0b00111,
0b00111
};
byte bar8[8] =
{
0b11100,
0b11100,
0b00000,
0b00000,
0b00000,
0b00000,
0b11100,
0b11100
};
//-----------------------------------------------------------------------------
//******************************************************************************
void setup() {
Wire.begin(0,2);
// initialize the LCD
lcd.begin();
// Turn on the blacklight and print a message.
lcd.backlight();
//------------------------------------------------------------------------------
lcd.createChar(1,bar1);
lcd.createChar(2,bar2);
lcd.createChar(3,bar3);
lcd.createChar(4,bar4);
lcd.createChar(5,bar5);
lcd.createChar(6,bar6);
lcd.createChar(7,bar7);
lcd.createChar(8,bar8);
//------------------------------------------------------------------------------
delay(100);
// We start by connecting to a WiFi network
Serial.println();
lcd.setCursor(0,0);
lcd.print("Lacze z siecia: ");
lcd.setCursor(0,1);
lcd.print(ssid);
WiFi.begin(ssid, password);
delay(2000);
lcd.clear();
while (WiFi.status() != WL_CONNECTED) {
delay(500);
lcd.print(".");
}
lcd.clear();
lcd.setCursor(0,0);
lcd.print("WIFI polaczone");
delay(2000);
lcd.clear();
lcd.setCursor(0,0);
lcd.print("Twoj adres IP:");
lcd.setCursor(0,1);
lcd.print(WiFi.localIP());
//-----------------------
delay(5000);
lcd.clear();
lcd.setCursor(0,0);
lcd.print("lacze z adresem:");
lcd.setCursor(0,1);
lcd.print(host);
delay(3000);
lcd.clear();
}
//*******************************************************************************
void custom0(int col)
{ // uses segments to build the number 0
lcd.setCursor(col, 0);
lcd.write(4);
lcd.write(1);
lcd.write(4);
lcd.setCursor(col, 1);
lcd.write(4);
lcd.write(2);
lcd.write(4);
}
void custom1(int col) //1
{
lcd.setCursor(col,0);
lcd.write(1);
lcd.write(4);
lcd.write(32);
lcd.setCursor(col,1);
lcd.write(2);
lcd.write(4);
lcd.write(2);
}
void custom2(int col) //2
{
lcd.setCursor(col,0);
lcd.write(1);
lcd.write(3);
lcd.write(4);
lcd.setCursor(col, 1);
lcd.write(4);
lcd.write(2);
lcd.write(2);
}
void custom3(int col) //3
{
lcd.setCursor(col,0);
lcd.write(1);
lcd.write(3);
lcd.write(4);
lcd.setCursor(col, 1);
lcd.write(2);
lcd.write(2);
lcd.write(4);
}
void custom4(int col) //4
{
lcd.setCursor(col,0);
lcd.write(4);
lcd.write(2);
lcd.write(4);
lcd.setCursor(col, 1);
lcd.write(32);
lcd.write(32);
lcd.write(4);
}
void custom5(int col) //5
{
lcd.setCursor(col,0);
lcd.write(4);
lcd.write(3);
lcd.write(3);
lcd.setCursor(col, 1);
lcd.write(2);
lcd.write(2);
lcd.write(4);
}
void custom6(int col) //6
{
lcd.setCursor(col,0);
lcd.write(4);
lcd.write(3);
lcd.write(3);
lcd.setCursor(col, 1);
lcd.write(4);
lcd.write(2);
lcd.write(4);
}
void custom7(int col) //7
{
lcd.setCursor(col,0);
lcd.write(1);
lcd.write(1);
lcd.write(4);
lcd.setCursor(col, 1);
lcd.write(32);
lcd.write(32);
lcd.write(4);
}
void custom8(int col) //8
{
lcd.setCursor(col, 0);
lcd.write(4);
lcd.write(3);
lcd.write(4);
lcd.setCursor(col, 1);
lcd.write(4);
lcd.write(2);
lcd.write(4);
}
void custom9(int col) //9
{
lcd.setCursor(col, 0);
lcd.write(4);
lcd.write(3);
lcd.write(4);
lcd.setCursor(col, 1);
lcd.write(2);
lcd.write(2);
lcd.write(4);
}
void custom11(int col)
{
lcd.setCursor(col,0);
lcd.write(5);
lcd.write(6);
lcd.setCursor(col, 1);
lcd.write(5);
lcd.write(6);
}
void custom12(int col)
{
lcd.setCursor(col,0);
lcd.write(4);
lcd.write(4);
lcd.setCursor(col, 1);
lcd.write(32);
lcd.write(32);
}
void custom13(int col)
{
lcd.setCursor(col,0);
lcd.write(32);
lcd.write(32);
lcd.setCursor(col, 1);
lcd.write(32);
lcd.write(32);
}
void printNumber(int value, int col) {
if (value == 0) {
custom0(col);
} if (value == 1) {
custom1(col);
} if (value == 2) {
custom2(col);
} if (value == 3) {
custom3(col);
} if (value == 4) {
custom4(col);
} if (value == 5) {
custom5(col);
} if (value == 6) {
custom6(col);
} if (value == 7) {
custom7(col);
} if (value == 8) {
custom8(col);
} if (value == 9) {
custom9(col);
}
if (value == 11) {
custom11(col);
}
if (value == 12) {
custom12(col);
}
if (value == 13) {
custom13(col);
}
}
//*******************************************************************************
void loop()
{
// Use WiFiClient class to create TCP connections
WiFiClient client;
const int httpPort = 8095;
if (!client.connect(host, httpPort)) {
lcd.clear();
lcd.setCursor(0,0);
lcd.print("connection failed");
return;
}
// We now create a URI for the request
String url = "/api/v3/timers/0";
//Serial.print("Requesting URL: ");
//Serial.println(url);
// This will send the request to the server
client.print("GET " + url + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"ApiCode: 8273\r\n" +
"Content-Type: application/json\r\n" +
"Connection: close\r\n\r\n");
delay(400);
unsigned int i = 0; //timeout counter
int n = 1; // char counter
char json[500] ="{";
while (!client.find("{")){}
while (i<600) { //while1
if(client.available()) { //if2
char c = client.read();
json[n]=c;
if(c == '}') break;
n++;
i=0;
} //eo if2
i++;
} //eo
StaticJsonBuffer<400> jsonBuffer;
JsonObject& root = jsonBuffer.parseObject(json);
if (!root.success()) {
lcd.setCursor(0,0);
lcd.print("blad JSON");
return;
}
String runningIndex = root["runningIndex"];
//Serial.print(runningIndex);
//Serial.println();
//Serial.println("closing connection");
if (runningIndex == "-1")
{
/*
lcd.setCursor(0,0);
lcd.print("timer zatrzymany");
lcd.setCursor(0,1);
lcd.print(" ");
*/
// Use WiFiClient class to create TCP connections
WiFiClient client;
const int httpPort = 8095;
if (!client.connect(host, httpPort)) { //if1
lcd.clear();
lcd.setCursor(0,0);
lcd.print("connection failed");
return;
} //eo if1
// We now create a URI for the request
String url = "/api/v3/datetime";
//Serial.print("Requesting URL: ");
//Serial.println(url);
// This will send the request to the server
client.print("GET " + url + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"ApiCode: 8273\r\n" +
"Content-Type: application/json\r\n" +
"Connection: close\r\n\r\n");
delay(500);
unsigned int i = 0; //timeout counter
int n = 1; // char counter
char json[500] ="{";
while (!client.find("{")){}
while (i<600) { //while1
if(client.available()) { //if2
char c = client.read();
json[n]=c;
if(c == '}') break;
n++;
i=0;
} //eo if2
i++;
} //eo while1
StaticJsonBuffer<500> jsonBuffer;
JsonObject& root = jsonBuffer.parseObject(json);
if (!root.success()) { //if3
return;
} //eo if3
int year = root["year"];
int month = root["month"];
int day = root["day"];
int hour = root["hour"];
int minute = root["min"];
int second = root["second"];
//-------------------------------big size----------------------------------
int m1 , m2 ,s1 , s2;
if (hour > 9) {
m1 = (hour - (hour % 10)) / 10;
hour = hour % 10;
} else {
m1 = 0;
}
m2 = hour;
if (minute > 9) {
s1 = (minute - (minute % 10)) / 10;
minute = minute % 10;
} else {
s1 = 0;
}
s2 = minute;
printNumber(m1, 0);
printNumber(13, 3);
printNumber(m2, 4);
printNumber(11, 7); // wyświetlamy dwukropek
printNumber(s1, 9);
printNumber(13, 12);
printNumber(s2, 13);
//-------------------------------------------------------------------------
}
else
{
// Use WiFiClient class to create TCP connections
WiFiClient client;
const int httpPort = 8095;
if (!client.connect(host, httpPort)) { //if1
lcd.clear();
lcd.setCursor(0,0);
lcd.print("connection failed");
return;
} //eo if1
// We now create a URI for the request
String url = "/api/v3/timers/" + runningIndex;
//Serial.print("Requesting URL: ");
//Serial.println(url);
// This will send the request to the server
client.print("GET " + url + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"ApiCode: 8273\r\n" +
"Content-Type: application/json\r\n" +
"Connection: close\r\n\r\n");
delay(250);
unsigned int i = 0; //timeout counter
int n = 1; // char counter
char json[500] ="{";
while (!client.find("{")){}
while (i<600) { //while1
if(client.available()) { //if2
char c = client.read();
json[n]=c;
if(c == '}') break;
n++;
i=0;
} //eo if2
i++;
} //eo while1
StaticJsonBuffer<500> jsonBuffer;
JsonObject& root = jsonBuffer.parseObject(json);
if (!root.success()) { //if3
return;
} //eo if3
int displayedMins = root["displayedMins"];
int displayedSecs = root["displayedSecs"];
int dS = displayedSecs;
//-------------------------------big size----------------------------------
int m1 , m2 ,s1 , s2;
if (displayedMins > 9) {
m1 = (displayedMins - (displayedMins % 10)) / 10;
displayedMins = displayedMins % 10;
} else {
m1 = 0;
}
m2 = displayedMins;
if (displayedSecs > 9) {
s1 = (displayedSecs - (displayedSecs % 10)) / 10;
displayedSecs = displayedSecs % 10;
} else {
s1 = 0;
}
s2 = displayedSecs;
printNumber(m1, 0);
printNumber(13, 3);
printNumber(m2, 4);
printNumber(11, 7); // wyświetlamy dwukropek
printNumber(s1, 9);
printNumber(13, 12);
printNumber(s2, 13);
if(m1==0 && m2==0 && dS < 31)
{
delay(250);
lcd.clear();
}
else
{
delay(250);
}
//-------------------------------------------------------------------------
} // end of else
} // end void loop
//****************************************************************************This code works, but there are delays and the timer is not displayed smoothly.
