| ??? 01/21/10 17:21 Read: times |
#172641 - A few days, or even more... Responding to: ???'s previous message |
Gopalakrishnan said:
Now problem with using an led is since we are at the end of battery life the we may be able to blink the LED maybe for few hours which the person may miss detecting. I think it will be able to blink for a few days, or even more. What kind of cell? CR2032? How do you detect undervoltage of battery? Kai Klaas |
| Topic | Author | Date |
| Low power indication | 01/01/70 00:00 | |
| By a blinking LED with very low duty cycle... | 01/01/70 00:00 | |
| Some more information | 01/01/70 00:00 | |
| A few days, or even more... | 01/01/70 00:00 | |
| Scheme... | 01/01/70 00:00 | |
| Thank you | 01/01/70 00:00 | |
| Choice of LED | 01/01/70 00:00 | |
| can be "Electrochromatic (electrochromic) display"? | 01/01/70 00:00 | |
| Comms interface? | 01/01/70 00:00 | |
| LCD? | 01/01/70 00:00 | |
| 10000 Hours... | 01/01/70 00:00 | |
| Rightly Put | 01/01/70 00:00 | |
| Why not? | 01/01/70 00:00 | |
| Not to knock it... | 01/01/70 00:00 | |
| Language barrier... | 01/01/70 00:00 | |
| possibly ???? | 01/01/70 00:00 | |
| flipdot | 01/01/70 00:00 | |
| spare part | 01/01/70 00:00 | |
| After all this discussion... | 01/01/70 00:00 | |
| Yes, LCD is highly recommended | 01/01/70 00:00 | |
| often more than a dot is available | 01/01/70 00:00 | |
| but O/P didn't mention any LCD ;-( | 01/01/70 00:00 | |
| No ... but someone else did | 01/01/70 00:00 | |
| "Bistable" LCDs - "Cholesteric" | 01/01/70 00:00 | |
What you want is... | 01/01/70 00:00 |