| ??? 09/29/06 10:37 Read: times |
#125363 - Updated Responding to: ???'s previous message |
Andy Neil said:
One of the few things that the OP has made clear from the start is that he needs 12V IO.
I don't see 12V mentioned anywhere on your schematic... Charles has since edited his schematic, so it does now show 12V - but it's too late for me to edit my post! http://www.8052.com/forum/read.phtml?id=125361 I'm not sure that it now meets Jagdish Jadav's requirement, though: Jagdish Jadav said:
In fact, it never did - it has one wire to each LED plus a wire to each switch. But maybe that's OK - Jagdish Jadav needs to comment... |
| Topic | Author | Date |
| 24 pin digital I/O | 01/01/70 00:00 | |
| CD4504BE | 01/01/70 00:00 | |
| Insufficient information! | 01/01/70 00:00 | |
| Many Drivers and level shifters site with pinouts | 01/01/70 00:00 | |
| Interesting first step | 01/01/70 00:00 | |
| data sheet | 01/01/70 00:00 | |
| Go to the Horse's Mouth | 01/01/70 00:00 | |
| thank you! | 01/01/70 00:00 | |
| avoid the 'hit collectors' | 01/01/70 00:00 | |
| well... | 01/01/70 00:00 | |
| go to the source | 01/01/70 00:00 | |
| 24 pin digital I/O details | 01/01/70 00:00 | |
| Open-Collector / Open-Drain | 01/01/70 00:00 | |
| any ic | 01/01/70 00:00 | |
| try | 01/01/70 00:00 | |
| Namely 74HC07 | 01/01/70 00:00 | |
| combined | 01/01/70 00:00 | |
| check out the date. | 01/01/70 00:00 | |
| OK, Somebody write the software | 01/01/70 00:00 | |
| It's 12V, Charles! | 01/01/70 00:00 | |
| Updated | 01/01/70 00:00 | |
| will modify dwg. WILL YOU WRITE SOFTWARE? | 01/01/70 00:00 | |
| To do what? | 01/01/70 00:00 | |
| To make it functional | 01/01/70 00:00 | |
| i have schmatic | 01/01/70 00:00 | |
| How to... | 01/01/70 00:00 | |
Helping? | 01/01/70 00:00 | |
| 'solutions' is not 'help' | 01/01/70 00:00 |