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September 1, 2022 01:38
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A simple clock based on M5CoreInk.
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/* | |
A simple clock based on M5CoreInk. | |
*/ | |
#include <WiFi.h> | |
#include <sntp.h> | |
#include <M5Unified.h> | |
#define WIFI_SSID "YOUR WIFI SSID" | |
#define WIFI_PASSWORD "YOUR WIFI PASSWD" | |
#define NTP_TIMEZONE "JST-8" | |
#define NTP_SERVER1 "ntp.aliyun.com" | |
#define NTP_SERVER2 "ntp1.aliyun.com" | |
#define NTP_SERVER3 "ntp2.aliyun.com" | |
void setup(void) { | |
auto cfg = M5.config(); | |
cfg.external_rtc = true; | |
cfg.clear_display = false; | |
M5.begin(cfg); | |
if (!M5.Rtc.getIRQstatus()) { | |
WiFi.begin(WIFI_SSID, WIFI_PASSWORD); | |
configTzTime(NTP_TIMEZONE, NTP_SERVER1, NTP_SERVER2, NTP_SERVER3); | |
while (WiFi.status() != WL_CONNECTED) { | |
Serial.print('.'); | |
delay(500); | |
} | |
Serial.println("\r\n WiFi Connected."); | |
while (sntp_get_sync_status() != SNTP_SYNC_STATUS_COMPLETED) { | |
Serial.print('.'); | |
delay(500); | |
} | |
Serial.println("\r\n NTP Connected."); | |
time_t t = time(nullptr) + 1; | |
while (t > time(nullptr)) | |
; | |
M5.Rtc.setDateTime(localtime(&t)); | |
} | |
auto dt = M5.Rtc.getDateTime(); | |
while (dt.time.seconds != 0) | |
{ | |
dt = M5.Rtc.getDateTime(); | |
delay(500); | |
} | |
M5.Display.setFreeFont(&Orbitron_Light_24); | |
if (dt.time.minutes == 30) { | |
M5.Display.clear(TFT_WHITE); | |
M5.Display.setTextSize(2.5); | |
M5.Display.drawCenterString("Clock", 100, 120); | |
} | |
char buf[32] = {0}; | |
M5.Display.setTextSize(2); | |
M5.Display.fillRect(0, 0, 200, 100, TFT_WHITE); | |
sprintf(buf, "%02d:%02d", dt.time.hours, dt.time.minutes); | |
M5.Display.drawCenterString(buf, 100, 10); | |
M5.Display.setTextSize(1); | |
sprintf(buf, "%02d-%02d-%04d", dt.date.date, dt.date.month, dt.date.year); | |
M5.Display.drawCenterString(buf, 100, 70); | |
M5.Display.sleep(); | |
M5.Rtc.clearIRQ(); | |
M5.Rtc.setAlarmIRQ(55); | |
M5.Power.powerOff(); | |
} | |
void loop(void) { | |
delay(100); | |
} |
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