[Solved]using built-in RTC on ArduinoIDE?
-
In MicroPython, we can use built-in RTC as clock, such as NTP clock.
Is there any way (library) to handle built-in RTC as clock on ArduinoIDE? -
Hi,
I have found this, it's maybe what you want:#include <M5Stack.h>
#define TFT_GREY 0x5AEBuint32_t targetTime = 0; // for next 1 second timeout
static uint8_t conv2d(const char* p); // Forward declaration needed for IDE 1.6.x
uint8_t hh = conv2d(TIME), mm = conv2d(TIME + 3), ss = conv2d(TIME + 6); // Get H, M, S from compile timebyte omm = 99, oss = 99;
byte xcolon = 0, xsecs = 0;
unsigned int colour = 0;void setup(void) {
//Serial.begin(115200);
M5.begin();
// M5.Lcd.setRotation(1);
M5.Lcd.fillScreen(TFT_BLACK);M5.Lcd.setTextSize(1);
M5.Lcd.setTextColor(TFT_YELLOW, TFT_BLACK);targetTime = millis() + 1000;
}void loop() {
if (targetTime < millis()) {
// Set next update for 1 second later
targetTime = millis() + 1000;// Adjust the time values by adding 1 second ss++; // Advance second if (ss == 60) { // Check for roll-over ss = 0; // Reset seconds to zero omm = mm; // Save last minute time for display update mm++; // Advance minute if (mm > 59) { // Check for roll-over mm = 0; hh++; // Advance hour if (hh > 23) { // Check for 24hr roll-over (could roll-over on 13) hh = 0; // 0 for 24 hour clock, set to 1 for 12 hour clock } } } // Update digital time int xpos = 0; int ypos = 85; // Top left corner ot clock text, about half way down int ysecs = ypos + 24; if (omm != mm) { // Redraw hours and minutes time every minute omm = mm; // Draw hours and minutes if (hh < 10) xpos += M5.Lcd.drawChar('0', xpos, ypos, 8); // Add hours leading zero for 24 hr clock xpos += M5.Lcd.drawNumber(hh, xpos, ypos, 8); // Draw hours xcolon = xpos; // Save colon coord for later to flash on/off later xpos += M5.Lcd.drawChar(':', xpos, ypos - 8, 8); if (mm < 10) xpos += M5.Lcd.drawChar('0', xpos, ypos, 8); // Add minutes leading zero xpos += M5.Lcd.drawNumber(mm, xpos, ypos, 8); // Draw minutes xsecs = xpos; // Sae seconds 'x' position for later display updates } if (oss != ss) { // Redraw seconds time every second oss = ss; xpos = xsecs; if (ss % 2) { // Flash the colons on/off M5.Lcd.setTextColor(0x39C4, TFT_BLACK); // Set colour to grey to dim colon M5.Lcd.drawChar(':', xcolon, ypos - 8, 8); // Hour:minute colon xpos += M5.Lcd.drawChar(':', xsecs, ysecs, 6); // Seconds colon M5.Lcd.setTextColor(TFT_YELLOW, TFT_BLACK); // Set colour back to yellow } else { M5.Lcd.drawChar(':', xcolon, ypos - 8, 8); // Hour:minute colon xpos += M5.Lcd.drawChar(':', xsecs, ysecs, 6); // Seconds colon } //Draw seconds if (ss < 10) xpos += M5.Lcd.drawChar('0', xpos, ysecs, 6); // Add leading zero M5.Lcd.drawNumber(ss, xpos, ysecs, 6); // Draw seconds }
}
}static uint8_t conv2d(const char* p) {
uint8_t v = 0;
if ('0' <= *p && *p <= '9')
v = *p - '0';
return 10 * v + *++p - '0';
} -
@kat Thanks, this seems to be software-counting clock in main loop. I'm looking for background-counting clock...
-
No, my question is NOT solved yet...
-
@akita11 said in [Solved]using built-in RTC on ArduinoIDE?:
No, my question is NOT solved yet...
ah ok sorry, i don't know this...