Turn relay with `index` on. Index starts at `1` and goes to the number of available relays. Throws an exception if the relay `index` is greater than the available number of relays.
### `relays.off(index)`
Turn relay with `index` off. Index starts at `1` and goes to the number of available relays. Throws an exception if the relay `index` is greater than the available number of relays.
## Contribute
Contributions welcome! Please submit a Pull Request and make sure to format your code with Prettier and write tests!