138 Hex Countdown
138 : Hex Countdown
- Author: Jorge Gómez y Felipe Gómez
- Description: Hexadecimal countdown from F to 0
- GitHub repository
- Open in 3D viewer
- View in Wokwi
- Clock: 1 Hz
- Feedback: ✅ 1
How it works
Statemachine that on each clock pulse subttracts one on the 7 segment display. Starting in F and finishing on 0.
How to test
Connect a 1Hz square signal as clock and by turning input 1 to 1, the counter will start counting down stopping on 0. On reset the value will return to F.
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | Activation signal | segment a | |
| 1 | segment b | ||
| 2 | segment c | ||
| 3 | segment d | ||
| 4 | segment e | ||
| 5 | segment f | ||
| 6 | segment g | ||
| 7 | dot |
User feedback
- urish: Works as described: counts down from "F" to "0" when ui_in[0] is high.