Sends an async uart message on severals pins
Attach a uart receiver to each pins, set the baud rate to 1200 and read the messages
| # | Input | Output |
|---|---|---|
| 0 | clock | uart_tx_0 |
| 1 | reset | uart_tx_1 |
| 2 | none | uart_tx_2 |
| 3 | none | none |
| 4 | none | none |
| 5 | none | none |
| 6 | none | none |
| 7 | none | none |