You can use spc_request_dev or spc_request_sys function of the SPC library when setting or using a smart expansion board.
spc_request_dev($sid, $cmd)
spc_request_sys($sid, $cmd)
The commands commonly supported by all smart expansion boards use the spc_request_sys function.
The following is a list of smart expansion board common commands.
| Command | Option | Description |
|---|---|---|
| get | did | get a device ID |
| get | uid | get a unique ID |
The commands that apply to each smart expansion board use the spc_request_dev function.
The following is a list of commands supported by the PES-2401.
| Command | Option | Description |
|---|---|---|
| set | $port output $level | turn a specified port ON(high) or OFF(low) |
| set | $port delay $time | set a delay on a specified port |
| get | $port output | get status of a specified port |