| ??? 05/25/06 12:09 Read: times |
#117081 - How many wires...? Responding to: ???'s previous message |
Mahmood Elnasser said:
I think the term one wire interface is misleading because you actually need 2 wires, one for the signal in both directions, the other one for gnd return. Yes - this is a moot point! The same could be said of things like I2C, which are often called "two-wire" interfaces! On the other hand, when we speak of a "3-Wire" RS232 cable, we really do mean exactly 3 wires - TX, RX, and GND! However, in this case, the question was specifically about port pins - and a "1-Wire" interface does require only 1 port pin! QED. |
| Topic | Author | Date |
| what is the actual keypad ????? | 01/01/70 00:00 | |
| What is the actual Keypad??!! | 01/01/70 00:00 | |
| Minimum Pins | 01/01/70 00:00 | |
| one wire interface? | 01/01/70 00:00 | |
How many wires...? | 01/01/70 00:00 |