| ??? 11/30/08 01:14 Read: times Msg Score: -1 -1 Didn't Search First |
#160425 - doughts in Infra Red LEDs |
hai,
i want to do attendance system using IR with 8052 microcontroller. i dont know whether IR works at different frequency . but, how can i do that with IR LED and using photodiode. |
| Topic | Author | Date |
| doughts in Infra Red LEDs | 01/01/70 00:00 | |
Research the field | 01/01/70 00:00 |