-
Notifications
You must be signed in to change notification settings - Fork 0
Serial Relay Board Communication Spec
Lance Hudson edited this page Jan 28, 2015
·
1 revision
Each Symbol is an ASCII Code
| Symbol | ASCII Code |
|---|---|
| SOH | 01 |
| SUB | 1A |
| ENQ | 05 |
| RS | 1E |
| EOT | 04 |
This command changes the state of a relay to on or off.
Below is what should be sent over serial. The pipes (|) are only there to make it easier to read.
| SOH | SUB | Relay ID | RS | State | EOT |
Relay ID should be replaced with the ID of the relay you wish to change (Starting at 1).
State should be replaced by 1 for ON and 0 for OFF.
Example
|SOH|SUB|1|RS|0|EOT|
or the hex version
011A011E04
The command requests the state of a relay.
| SOH | ENQ | Relay ID | EOT |
Relay ID should be replaced with the ID of the relay you wish to change (Starting at 1).
Example
01050104
This indicates the state of a particular relay, it is sent in response to one of the above commands.
| SOH | Relay ID | RS | State | EOT |
Example
01011E0104