| ??? 04/01/07 17:54 Modified: 04/01/07 18:01 Read: times |
#136373 - I would use a PNP Responding to: ???'s previous message |
The reason why, is, that P1.1 is also high, when you reset the micro. So, turning on the buzzer with setting P1.1 high will result in a buzzer that will make sound everytime you reset the micro. Do you want this?
Kai |
| Topic | Author | Date |
| how to use a simple buzzer? | 01/01/70 00:00 | |
| Try it ? | 01/01/70 00:00 | |
| that worked, but... | 01/01/70 00:00 | |
| current | 01/01/70 00:00 | |
| When you've found the current requirement... | 01/01/70 00:00 | |
| Buzzer connections | 01/01/70 00:00 | |
| Drivers | 01/01/70 00:00 | |
| will try it and get back... | 01/01/70 00:00 | |
| If the buzzer draws lots of current... | 01/01/70 00:00 | |
| Quote | 01/01/70 00:00 | |
| Correct | 01/01/70 00:00 | |
| ok... | 01/01/70 00:00 | |
| Numerous options ... | 01/01/70 00:00 | |
| only have 5V supply | 01/01/70 00:00 | |
| it might prove interesting ... | 01/01/70 00:00 | |
| Because you took a NPN instead of PNP... | 01/01/70 00:00 | |
| will try this | 01/01/70 00:00 | |
| kai | 01/01/70 00:00 | |
| I would use a PNP | 01/01/70 00:00 | |
| Do yourself a favor ... try it as he suggests! | 01/01/70 00:00 | |
| we all did some such thing ONCE, I believe | 01/01/70 00:00 | |
| hmmm.... | 01/01/70 00:00 | |
I don't know why,... | 01/01/70 00:00 |