Binary-coded hexadecimal uses binary to express each digit of a hexadecimal number.
The following characters are used: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
Examples:
| Hexadecimal | Binary-coded hexadecimal | |||
| 1 | 2 | 4 | 8 | |
| 0 | 0 | 0 | 0 | 0 |
| 1 | 1 | 0 | 0 | 0 |
| 2 | 0 | 1 | 0 | 0 |
| 3 | 1 | 1 | 0 | 0 |
| 4 | 0 | 0 | 1 | 0 |
| 5 | 1 | 0 | 1 | 0 |
| 6 | 0 | 1 | 1 | 0 |
| 7 | 1 | 1 | 1 | 0 |
| 8 | 0 | 0 | 0 | 1 |
| 9 | 1 | 0 | 0 | 1 |
| A | 0 | 1 | 0 | 1 |
| B | 1 | 1 | 0 | 1 |
| C | 0 | 0 | 1 | 1 |
| D | 1 | 0 | 1 | 1 |
| E | 0 | 1 | 1 | 1 |
| F | 1 | 1 | 1 | 1 |
| Dial | Output | |||
| 0 | ||||
| 1 | ● | |||
| 2 | ● | |||
| 3 | ● | ● | ||
| 4 | ● | |||
| 5 | ● | ● | ||
| 6 | ● | ● | ||
| 7 | ● | ● | ● | |
| 8 | ● | |||
| 9 | ● | ● | ||
| A | ● | ● | ||
| B | ● | ● | ● | |
| C | ● | ● | ||
| D | ● | ● | ● | |
| E | ● | ● | ● | |
| F | ● | ● | ● | ● |
