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NTP時計 + 温湿度計
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#include <ESP8266WiFi.h> // for WIFI | |
#include <time.h> // for time(), localtime() | |
// Wi-Fi設定 | |
#define WIFI_SSID "your wi-fi ssid" | |
#define WIFI_PASSWORD "your wi-fi password" | |
// NTP設定 | |
#define TIMEZONE_JST "JST-9" // Arduino/cores/esp8266/TZ.h | |
#define NTP_SERVER1 "ntp.nict.jpntp.nict.jp" // NTPサーバー | |
#define NTP_SERVER2 "ntp.jst.mfeed.ad.jp" // NTPサーバー | |
// LCD設定 | |
#include <LCD_ST7032.h> | |
LCD_ST7032 lcd; | |
unsigned long millisecondsForDisplay = 0; | |
unsigned long millisecondsForSensor = 0; | |
// DHT11 | |
#include <Adafruit_Sensor.h> | |
#include <DHT.h> | |
#include <DHT_U.h> | |
#define DHTPIN 14 | |
#define DHTTYPE DHT11 | |
DHT_Unified dht(DHTPIN, DHTTYPE); | |
void setup() | |
{ | |
dht.begin(); | |
lcd.begin(); | |
String connectingMessage = "Connecting"; | |
// Wi-Fiセットアップ | |
// WiFiネットワーク接続 | |
if ((WiFi.status() != WL_CONNECTED)) { | |
WiFi.disconnect(); | |
WiFi.begin(WIFI_SSID, WIFI_PASSWORD); | |
} | |
while (WiFi.status() != WL_CONNECTED) | |
{ | |
lcd.clear(); | |
lcd.setCursor(0, 0); | |
lcd.print(connectingMessage); | |
delay(500); | |
connectingMessage += "."; | |
if (connectingMessage.length() > 13) { | |
connectingMessage = "Connecting"; | |
} | |
} | |
lcd.clear(); | |
// 確認用にIPアドレスを表示 | |
lcd.setCursor(0, 0); | |
lcd.print(WiFi.localIP()); | |
delay(2000); | |
// NTP同期 | |
configTzTime("JST-9", NTP_SERVER1, NTP_SERVER2); | |
} | |
void loop() | |
{ | |
if (millis() < millisecondsForDisplay) { | |
// 指定した秒に達するまでは、時刻表示を維持 | |
} else { | |
millisecondsForDisplay += 1000; | |
displayTime(); | |
} | |
if (millis() < millisecondsForSensor) { | |
// 指定した秒に達するまでは、温湿度表示を維持 | |
} else { | |
millisecondsForSensor += 5000; | |
displayTemperature(); | |
} | |
delay(300); | |
} | |
void displayTime() { | |
// 現在時刻の取得 | |
time_t timeNow = time(NULL); | |
struct tm* tmNow = localtime(&timeNow); | |
// 日付 | |
char szDate[32]; | |
strftime(szDate, sizeof(szDate), "%Y/%m/%d(%a)", tmNow); | |
// 時刻 | |
char szTime[32]; | |
strftime(szTime, sizeof(szTime), "%H:%M:%S", tmNow); | |
lcd.setCursor(0, 0); | |
lcd.print(szDate); | |
lcd.setCursor(1, 0); | |
lcd.print(szTime); | |
} | |
void displayTemperature() { | |
//// 温湿度表示 | |
lcd.setCursor(1, 9); | |
sensors_event_t event; | |
dht.temperature().getEvent(&event); | |
if (isnan(event.temperature)) { | |
lcd.print("____"); | |
} else { | |
char temperature[32]; | |
sprintf(temperature, "%2.1f", event.temperature); | |
lcd.print(temperature); | |
} | |
lcd.setCursor(1, 14); | |
dht.humidity().getEvent(&event); | |
if (isnan(event.relative_humidity)) { | |
lcd.print("__"); | |
} else { | |
char humidity[32]; | |
sprintf(humidity, "%2.0f", round(event.relative_humidity)); | |
lcd.print(humidity); | |
} | |
} |
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