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Fixed full update and added more comments

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This commit is contained in:
Laurence Bank
2025-03-29 20:04:20 +00:00
parent b7bd6b7557
commit dd16c1dc55
1 changed files with 16 additions and 4 deletions
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examples/CO2_EPD_Clock/CO2_EPD_Clock.ino
+16 -4
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@@ -94,7 +94,14 @@ void setup() {
} else { // can't find the sensor, stop
} // no sensor connected or some error
rtc.getTime(&myTime); // see if the clock is set
if (myTime.tm_hour == 0 && myTime.tm_min == 0) { // time is not set, give it a time/date
// If the time is not set, give it a time/date
// This can obviously be improved with a way to get user input
// to set/correct the time. I like to use temperature compensated RTCs
// like the DS3231 and RV3032. Both will only drift by a few seconds after
// a few months of continuous usage. Lower cost RTCs like the BM8563 can drift
// several seconds per day and should not be relied upon to keep accurate time for
// long periods.
if (myTime.tm_hour == 0 && myTime.tm_min == 0) {
myTime.tm_sec = 0;
myTime.tm_hour = 19;
myTime.tm_min = 10;
@@ -120,9 +127,14 @@ int iCount = 0;
delay(60000); // update once a minute
epd.backupPlane(); // copy last data to "old plane"
ShowInfo(0); // update plane 0 (with new data)
epd.writePlane(PLANE_BOTH); // UC8151 needs both planes written to do partial updates
// Do 15 partial (non-flashing) updates followed by a full update to remove ghosting
epd.refresh(((iCount & 15) == 0) ? REFRESH_FULL : REFRESH_PARTIAL);
if ((iCount & 15) == 0) { // do a full refresh
epd.writePlane(PLANE_DUPLICATE);
epd.refresh(REFRESH_FULL);
} else { // partial refresh
epd.writePlane(PLANE_BOTH); // UC8151 needs both planes written to do partial updates
// Do 15 partial (non-flashing) updates followed by a full update to remove ghosting
epd.refresh(REFRESH_PARTIAL);
}
epd.wait();
epd.sleep(LIGHT_SLEEP); // extends the life of the panel to sleep it between updates
iCount++;