620 spinny
620 : spinny
- Author: Daniel Rojas
- Description: Configurable spinner on 7 segment display
- GitHub repository
- Open in 3D viewer
- View in Wokwi
- Clock: 4 Hz
Tiny Tapeout 7-Segment Spinner
How it works
Use the 8-pin DIP switch to create various spinning animations on the 7-segment display.
Possible modes:
- Large circle spinner
- Small circle spinner (top)
- Small circle spinner (bottom)
- Figure 8 spinner
Additional features:
- Change spinning direction
- Show clock pulse on decimal point
Wokwi project link: https://wokwi.com/projects/425498675799185409
General settings (for all modes)
- Press the reset switch to load the configuration into the spinner.
- Use the clock input to set the spinning speed. Every clock pulse will make the spinner advance by one segment.
- Use switch 7 to change the spin direction.
- Use switch 8 to show or hide the clock pulse on the decimal point.
Specific settings for each mode
Large circle spinner
This spinner uses the six outer segments for the spinner.
- Set switch 6 to 0.
- Use switches 1 through 5 to configure which segments should start lit up. Segment 6 will always be off.
Small circle spinner
This spinner uses the top or bottom four segments for the spinner.
- Set switch 6 to 1.
- Set switch 4 to 0.
- Set switch 5 to 0 for the top four segments, set to 1 for the bottom four segments.
- Use switches 1 through 3 to configure which segments should start lit up. Segment 4 will always be off.
Figure 8 spinner
This spinner uses all seven segments for the spinner.
- Set switch 6 to 1.
- Set switch 4 to 1.
- Switch 5 has no function.
- Use switches 1 through 3 to configure which segments should start lit up. Segment 4 will always be off.
How to test
Use the hardware on the demo board and follow the instructions above to see the different modes.
External hardware
8-pin DIP switch on input, 7-segment display on output, reset switch, clock in.
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | InitA | OutA | |
| 1 | InitB | OutB | |
| 2 | InitC | OutC | |
| 3 | InitD | OutD | |
| 4 | InitE | OutE | |
| 5 | InitF | OutF | |
| 6 | Direction | OutG | |
| 7 | OutDP |