Comments (2)
I can only suggest carefully inspecting the pcb and assembly. Things like a shorted lead, or poor crystal and/or RTC IC connections could cause this kinds of issues.
from stc_diyclock.
You can ignore my above comment. I bought four of these units (one, then three afterwards). I have built three of them and they all would lock up at random times, swapping chips made no difference. I tried different firmwares as well.
Now all them are acting normally with this firmware.
from stc_diyclock.
Related Issues (20)
- "Waiting for MCU, please cycle power" HOT 3
- Maybe new model? Schematic Provided.. HOT 9
- 4 digit display models? HOT 3
- buttons don't work HOT 17
- Website for original maker of these kits
- Need help with make on windows HOT 1
- синхронизация времени с приемником GPS вывод последовательных данных NMEA HOT 8
- Time stops ticking when power is lost HOT 1
- Привет! HOT 3
- Dot-Matrix version? HOT 3
- hourly chime HOT 3
- Weird bevaviour with STC15W408AS HOT 7
- New hardware version from Banggood w/ STC15W408AS? HOT 25
- My kit reset time to 00:00 01-01-2000 each power cycle HOT 2
- barebone firmware HOT 3
- Firmware for clock with voice HOT 3
- Worked for 10 minutes with new chips and then stopped... HOT 3
- Brightness level HOT 7
- Makefile SDCCOPTS HOT 1
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from stc_diyclock.