| ??? 08/25/08 11:34 Read: times |
#157734 - bad description Responding to: ???'s previous message |
"This design may be called as non-volatile timer ..... So, it actives only if powered."
Do You not see conflict here? 1-Hour meter ,when powered - this does not require DS1837. It can be made with: - only microcontroller - only NE555 classic - some classic transistor monovibrator - without any electronic, using some Egg cooker. - with one motor with big gear and so on... |
| Topic | Author | Date |
| How to design an hour meter using RTC and AT89C51 | 01/01/70 00:00 | |
| bad description | 01/01/70 00:00 | |
| Not all possible | 01/01/70 00:00 | |
| why? | 01/01/70 00:00 | |
| Common need | 01/01/70 00:00 | |
| which RTC | 01/01/70 00:00 | |
Reading helps | 01/01/70 00:00 |