OR gate
The output is 1 when at least one input is 1.
Truth table
| A | B | Y |
|---|---|---|
| 0 | 0 | 0 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 1 |
Pins
2–8 inputs on the left (select it and use + / − to change), one output on the right.
How to use it
“Either one” conditions, combining several triggers, forcing bits to 1.
Usage example
Wired the same way as AND. The LED lights when at least one input is 1 (only A is on here).