| ??? 09/21/09 10:45 Read: times |
#169005 - why do these 'maybe' circuits keep popping up? Responding to: ???'s previous message |
there has been cases where a bad filling of a tooth has resulted in a local radio station being picked up but I have never seen a post "to receive radio, get a filling at your dentist it works".
However for things like "transistor based RS232" and the likes, it works keep popping up although it does not work has been posted 1000s of times. YES, such may work when the moon is in the 3rd quarter and the wind is from the west, but is that a 'design'?, does that ment that it works. Erik |
| Topic | Author | Date |
| RS232/serial port of PC for 3 volt microcontrollers | 01/01/70 00:00 | |
| No | 01/01/70 00:00 | |
| Try searching for: MAX3232 or SP3232 | 01/01/70 00:00 | |
| Transistor level shifter | 01/01/70 00:00 | |
| Availability | 01/01/70 00:00 | |
| only if you have +-12V | 01/01/70 00:00 | |
| For transistor based RS232 | 01/01/70 00:00 | |
| Bad idea! | 01/01/70 00:00 | |
| why do these 'maybe' circuits keep popping up? | 01/01/70 00:00 | |
| Few designs have suitable +/- supplies | 01/01/70 00:00 | |
| More to it than just voltages | 01/01/70 00:00 | |
| Yes of course | 01/01/70 00:00 | |
| because they do mostly "work" most of the time | 01/01/70 00:00 | |
| 'mostly' is never stated | 01/01/70 00:00 | |
| I suspect that it's actually quite high... | 01/01/70 00:00 | |
| If he had the supplies ... | 01/01/70 00:00 | |
| Get from other parts of India | 01/01/70 00:00 | |
| Why would you want to use one of those? | 01/01/70 00:00 | |
| Whats Your preference 3V RS or AT89c2051? | 01/01/70 00:00 | |
| If it's specifically for a PC, is RS232 a good choice? | 01/01/70 00:00 | |
Thanks | 01/01/70 00:00 |