237 Adjustable supply digital counter
237 : Adjustable supply digital counter
- Author: Matt Venn
- Description: Allow analog supply to supply a digital counter
- GitHub repository
- Open in 3D viewer
- Clock: 0 Hz
How it works
Danger! Self destructing design! Remove analog supply resistor before enabling or you will fry the digital design.
How to test
Connect a variable PSU to the disconnected analog supply and see what happens.
External hardware
PSU
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | |||
| 1 | |||
| 2 | |||
| 3 | |||
| 4 | |||
| 5 | |||
| 6 | |||
| 7 |
Analog pins
ua | PCB Pin | Internal index | Description |
|---|---|---|---|
| 0 | A5 | 5 | n_rst |
| 1 | A0 | 0 | clk |
| 2 | A4 | 4 | count[3] |
| 3 | A1 | 1 | count[2] |
| 4 | A3 | 3 | count[1] |
| 5 | A2 | 2 | count[0] |