Skip to content

Instantly share code, notes, and snippets.

@Tomokatsu-Sakamoto

Tomokatsu-Sakamoto/ESP8266_Clock.ino

Created January 12, 2018 05:28
Show Gist options
  • Save Tomokatsu-Sakamoto/321a90143636f78d94f0ec3bc2098316 to your computer and use it in GitHub Desktop.
Save Tomokatsu-Sakamoto/321a90143636f78d94f0ec3bc2098316 to your computer and use it in GitHub Desktop.
Download ZIP
ESP-WROOM-02 を使ったネットワーク時計 ※LCDに表示
Raw
ESP8266_Clock.ino
/*
ESP-WROOM-02 + LCD で現在時刻を表示(NTPで現在時刻を取得)
https://qiita.com/exabugs/items/b1b7430d185b268a1abf
*/
#include <ESP8266WiFi.h>
#include <NTP.h>
#include <ST7032.h>
#include "MyWiFi.h" // このファイルの中では ssid と password を定義
#ifndef ssid // 他の場所で SSID が設定されていなかった時は、ここで...
#define ssid "SSID"
#endif
#ifndef password // 他の場所で Password が設定されていなかった時は、ここで...
#define password "password"
#endif
#define RETRY_MAX 40
#define ntp_server "xx.xx.xx.xx" // 使用する NTP サーバーを記述する
ST7032 lcd;
char lineBuff[ 16 ]; // LCDの1行分バッファ
void setup() {
int iCount = 0;
int iStatus;
ESP.eraseConfig();
delay( 500 );
ESP8266_Information( );
Serial.begin( 115200 );
Serial.println( );
Serial.printf("Serial is %d bps", Serial.baudRate( ) );
ESP8266_Information();
lcd.begin(8, 2);
lcd.setContrast(30); // コントラスト設定
lcd.clear( );
lcd.print("Wi-Fi ");
lcd.setCursor( 0, 1 );
lcd.print("connect.");
lcd.blink( );
// 自分のネットワークに合わせてください
Serial.print( "Connect to [" );
Serial.print( ssid );
Serial.println( "]." );
WiFi.mode( WIFI_STA );
WiFi.begin( ssid, password );
WiFi.printDiag(Serial);
while ( ( iStatus = WiFi.status( ) ) != WL_CONNECTED ) {
delay( 500 );
Serial.printf( "%d", iStatus );
iCount++;
if ( iCount >= RETRY_MAX ) {
iCount = 0;
Serial.print( " " );
WiFi_Status( );
WiFi.printDiag( Serial );
WiFi.reconnect();
}
}
Serial.println( "" );
Serial.print( "WiFi connected." );
Serial.print( "Connected as " );
Serial.println( WiFi.localIP( ) );
lcd.setCursor( 0, 1 );
lcd.print(" OK! ");
lcd.blink( );
// 初期化
// 2390 はローカルのUDPポート。空いている番号なら何番でもいいです。
ntp_begin( 2390 );
// NTPサーバを変更 (デフォルト: ntp.nict.jp)
setTimeServer( ntp_server );
// NTP同期間隔を変更 (デフォルト: 300秒)
setSyncInterval(10);
}
void display() {
time_t n = now();
time_t t;
char s[20];
const char* format = "%04d-%02d-%02d %02d:%02d:%02d";
int iDY, iDM, iDD, iTH, iTM, iTS;
// JST
t = localtime( n, 9 );
iDY = year( t );
iDM = month( t );
iDD = day( t );
iTH = hour( t );
iTM = minute( t );
iTS = second( t );
sprintf( s, format, iDY, iDM, iDD, iTH, iTM, iTS );
Serial.print( "JST : " );
Serial.print( s );
lcd.setCursor( 0, 0 );
sprintf( lineBuff, "%02d/%2d/%2d", ( iDY % 100 ), iDM, iDD );
lcd.print( lineBuff );
lcd.setCursor( 0, 1 );
sprintf( lineBuff, "%2d:%02d:%02d", iTH, iTM, iTS );
lcd.print( lineBuff );
// UTC
t = localtime( n, 0 );
sprintf( s, format, year( t ), month( t ), day( t ), hour( t ), minute( t ), second( t ) );
Serial.print( " UTC : " );
Serial.println( s );
}
void loop( ) {
display( );
delay( 1000 );
}
Raw
ESP8266_Common1.ino
void ESP8266_Information( void )
{
// https://www.mgo-tec.com/blog-entry-chip-info-esp-wroom-02-esp8266.html
// 上記 URL にある情報をもとに、ESP-WROOM-02 のボード情報を表示する
Serial.println( "" );
Serial.println( "" );
Serial.println( "" );
Serial.println(
"------------------------------------------------" );
Serial.println(
"--- ESP-WROOM-02 ( ESP8266 ) Chip Infomation ---" );
Serial.println(
"------------------------------------------------" );
Serial.print(
"Core Version = " );
Serial.println(
ESP.getCoreVersion( ) );
Serial.print(
"CPU Frequency = " );
Serial.print( ESP.getCpuFreqMHz( ) );
Serial.println(
" MHz" );
Serial.print(
"ChipID = " );
Serial.println( ESP.getChipId( ), HEX ); // MACアドレスの下位3バイト
Serial.print(
"Flash ID = " );
Serial.println( ESP.getFlashChipId( ), HEX );
Serial.print(
"SDK version = " );
Serial.println( ESP.getSdkVersion( ) );
Serial.print(
"Boot version = " );
Serial.println( ESP.getBootVersion( ) );
Serial.print(
"Boot Mode = " );
Serial.println( ESP.getBootMode( ) );
Serial.print(
"Flash Chip IDE Size = " );
Serial.print( ESP.getFlashChipSize( ) ); // Arduino IDE 設定の Flash Size になる
Serial.println(
" byte" );
Serial.print(
"Flash Chip Real Size = " );
Serial.print(
ESP.getFlashChipRealSize( ) ); // ESP-WROOM-32 内蔵最大 Flash Size になる
Serial.println(
" byte" );
Serial.print(
"Flash Frequency = " );
Serial.print(
ESP.getFlashChipSpeed( ) );
Serial.println(
" Hz" );
String mode_str;
switch ( ESP.getFlashChipMode() ) {
case 0: mode_str = "QIO"; break;
case 1: mode_str = "QOUT"; break;
case 2: mode_str = "DIO"; break;
case 3: mode_str = "DOUT"; break;
default: mode_str = "Unknown"; break;
}
Serial.println(
"Flash Chip Mode = " + mode_str );
Serial.print(
"Free Heap Size = ");
Serial.println( ESP.getFreeHeap( ) );
Serial.print(
"Free Sketch Size = " );
Serial.println( ESP.getFreeSketchSpace( ) );
Serial.print(
"Sketch Size = " );
Serial.println( ESP.getSketchSize( ) );
Serial.println(
"------------------------------------------------" );
uint8_t mac0[ 6 ];
WiFi.macAddress( mac0 );
Serial.printf(
"WiFi StationAP Mac Address = %02X:%02X:%02X:%02X:%02X:%02X\r\n",
mac0[ 0 ], mac0[ 1 ], mac0[ 2 ], mac0[ 3 ], mac0[ 4 ], mac0[ 5 ] );
uint8_t mac1[ 6 ];
WiFi.softAPmacAddress( mac1 );
Serial.printf(
"WiFi SoftAP Mac Address = %02X:%02X:%02X:%02X:%02X:%02X\r\n",
mac1[ 0 ], mac1[ 1 ], mac1[ 2 ], mac1[ 3 ], mac1[ 4 ], mac1[ 5 ] );
Serial.println(
"------------------------------------------------" );
Serial.println( );
}
Raw
ESP8266_Common3.ino
///////////////////////////////////////////////////////////////////////
// 現在の Wi-Fi 状態を表示
int WiFi_Status( void )
{
int status = WL_IDLE_STATUS; // the Wifi radio's status
Serial.print(
"WiFi.status( ) = " );
switch ( status = WiFi.status( ) ) {
case WL_CONNECTED:
// assigned when connected to a WiFi network;
Serial.println( "WL_CONNECTED" );
break;
case WL_NO_SHIELD:
// assigned when no WiFi shield is present;
Serial.println( "WL_NO_SHIELD" );
break;
case WL_IDLE_STATUS:
// it is a temporary status assigned when WiFi.begin() is called and
// remains active until the number of attempts expires (resulting in
// WL_CONNECT_FAILED) or a connection is established (resulting in
// WL_CONNECTED);
Serial.println( "WL_IDLE_STATUS" );
break;
case WL_NO_SSID_AVAIL:
// assigned when no SSID are available;
Serial.println( "WL_NO_SSID_AVAIL" );
break;
case WL_SCAN_COMPLETED:
// assigned when the scan networks is completed;
Serial.println( "WL_SCAN_COMPLETED" );
break;
case WL_CONNECT_FAILED:
// assigned when the connection fails for all the attempts;
Serial.println( "WL_CONNECT_FAILED" );
break;
case WL_CONNECTION_LOST:
// assigned when the connection is lost;
Serial.println( "WL_CONNECTION_LOST" );
break;
case WL_DISCONNECTED:
// assigned when disconnected from a network;
Serial.println( "WL_DISCONNECTED" );
break;
default:
Serial.println( "? ? ? ? ? ? ? ? ? ?" );
break;
}
return status;
}
///////////////////////////////////////////////////////////////////////
// 現在のネットワーク情報を表示
void WiFi_Information( void )
{
int status = WL_IDLE_STATUS; // the Wifi radio's status
byte mac[6]; // the MAC address of your Wifi shield
Serial.println(
"------------------------------------------------" );
Serial.println(
"--- WiFi Infomation ---" );
Serial.println(
"------------------------------------------------" );
Serial.print(
"WiFi.localIP( ) = " );
Serial.println( WiFi.localIP( ) );
Serial.print(
"WiFi.subnetMask( ) = " );
Serial.println( WiFi.subnetMask( ) );
Serial.print(
"WiFi.gatewayIP( ) = " );
Serial.println( WiFi.gatewayIP( ) );
status = WiFi_Status( );
if ( status != WL_CONNECTED ) {
Serial.println("Couldn't get a wifi connection");
}
else {
// if you are connected, print your MAC address:
WiFi.macAddress( mac );
Serial.print(
"MAC ( Physical Address ) = " );
Serial.print( mac[ 5 ], HEX );
Serial.print( ":" );
Serial.print( mac[ 4 ], HEX );
Serial.print( ":" );
Serial.print( mac[ 3 ], HEX );
Serial.print( ":" );
Serial.print( mac[ 2 ], HEX );
Serial.print( ":" );
Serial.print( mac[ 1 ], HEX );
Serial.print( ":" );
Serial.println( mac[ 0 ], HEX );
}
Serial.println(
"------------------------------------------------" );
Serial.println( );
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment