322 O2ELHd 7segment display
322 : O2ELHd 7segment display
- Author: OzelHD
- Description: Uses the 7 segment display to write my name
- GitHub repository
- Open in 3D viewer
- View in Wokwi
- Clock: 1 Hz
How it works
Using a clock and a binary counter, this design counts from 0 to 6 and then resets back to 0. For every value of the counter, a different letter is displayed on the 7-segment display. The mapping from counter value to letter is as follows:
- 0: O
- 1: 2
- 2: E
- 3: L
- 4: H
- 5: d
- 6: (blank)
How to test
You can manually test the inputs using the switch:
| SW | Function |
|---|---|
| 1 | Reset |
| 2 | a |
| 3 | b |
| 4 | c |
| 5 | N/A |
| 6 | N/A |
| 7 | N/A |
| 8 | N/A |
Set the clock to 1 Hz and observe the display. You should see the letters O, 2, E, L, H, d, and blank as you increment the counter from 0 to 6.
External hardware
LED display (7-segment) button, clock, and reset button.
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | Reset | segment a | |
| 1 | a | segment b | |
| 2 | b | segment c | |
| 3 | c | segment d | |
| 4 | segment e | ||
| 5 | segment f | ||
| 6 | segment g | ||
| 7 | dot segment |