| ??? 12/07/04 20:53 Read: times |
#82722 - Watch for the transceiver. Responding to: ???'s previous message |
Some transceivers run on marginal amount of power. Some use excessive amounts. I tried MAX232 and I couldn't run it from a standard 9V battery attached through 5V regulator - the usage was too high, the voltage was dropping too low. (so no way it could run from any RS232 pin). Only after I attached a 12V power supply, the levels got within tollerances. MAX233 behaved a bit better though not without its problems. So the answer is: Most probably it won't work. |
| Topic | Author | Date |
| COM port pin as 5 or 9 v power supply. | 01/01/70 00:00 | |
| COM port pin as 5 or 9 v power supply | 01/01/70 00:00 | |
| Port Powered Circuits | 01/01/70 00:00 | |
| Ruin your COM port? | 01/01/70 00:00 | |
| Why you can ruin Easily the COM port? | 01/01/70 00:00 | |
| To Ijaz Ahmed | 01/01/70 00:00 | |
| Re: To Ijaz Ahmed | 01/01/70 00:00 | |
| Where does 8051 fit in your project? | 01/01/70 00:00 | |
point of the question | 01/01/70 00:00 | |
| Charge Pumps/DC-DC converters | 01/01/70 00:00 | |
| Watch for the transceiver. | 01/01/70 00:00 | |
| RE | 01/01/70 00:00 |