A current comparator that compares 2 currents each formed by a sum of 8 digital pins.
Set the 8 inputs to form current A and 8 bi-directional inputs to form current B. The ouptut analog voltage is the result of the comparison operator (sigmoid).
A multimeter to measure the output voltage on analog pin 0.
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | Inhibitory current bit | Excitatory current bit | |
| 1 | Inhibitory current bit | Excitatory current bit | |
| 2 | Inhibitory current bit | Excitatory current bit | |
| 3 | Inhibitory current bit | Excitatory current bit | |
| 4 | Inhibitory current bit | Excitatory current bit | |
| 5 | Inhibitory current bit | Excitatory current bit | |
| 6 | Inhibitory current bit | Excitatory current bit | |
| 7 | Inhibitory current bit | Excitatory current bit |
ua | analog | Description |
|---|---|---|
| 0 | 10 | Main comparator output |
| 1 | 7 | Summed currents (debug) |
| 2 | 9 | 2nd comparator input (debug) |
| 3 | 8 | 2nd comparator output (debug) |