| ??? 03/31/07 04:17 Read: times |
#136262 - Try it ? Responding to: ???'s previous message |
Verun Rahimtoola said:
hi,
i'm very new to programming the 8051 so pls. bear with me! i just need to use a simple buzzer for a school project, we're using a very basic buzzer that you can buy at radio shack for abt $3, its rated at 3 - 16V. my question is, do i have to send a continuous square wave to the buzzer, or do i just have to send it 1 single pulse to turn it on? thanks! It depends. Some "sounders" need driving with sqaure waves, buzzers usually don't. Apply 3V and see if it screams or just clicks. Steve |
| 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 |