WLED/usermods/multi_relay/readme.md
Blaž Kristan a93f05c047
Multirelay button support. (#2284)
* Multirelay button support.
Added button hook for usermods.

* Added MultiRelay relay states to JSON state object

* Move button timings to constants

No delay waiting for double press on button 0 if no macro set

Co-authored-by: cschwinne <dev.aircoookie@gmail.com>
2021-10-31 11:57:03 +01:00

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# Multi Relay
This usermod-v2 modification allows the connection of multiple relays each with individual delay and on/off mode.
## HTTP API
All responses are returned as JSON.
Status Request: `http://[device-ip]/relays`
Switch Command: `http://[device-ip]/relays?switch=1,0,1,1`
The number of numbers behind the switch parameter must correspond to the number of relays. The number 1 switches the relay on. The number 0 switches the relay off.
Toggle Command: `http://[device-ip]/relays?toggle=1,0,1,1`
The number of numbers behind the parameter switch must correspond to the number of relays. The number 1 causes a toggling of the relay. The number 0 leaves the state of the device.
Examples
1. 4 relays at all, relay 2 will be toggled: `http://[device-ip]/relays?toggle=0,1,0,0`
2. 3 relays at all, relay 1&3 will be switched on: `http://[device-ip]/relays?switch=1,0,1`
## JSON API
You can switch relay state using the following JSON object transmitted to: `http://[device-ip]/json`
Switch relay 0 on: `{"MultiRelay":{"relay":0,"on":true}}`
Switch relay4 3 & 4 off: `{"MultiRelay":[{"relay":2,"on":false},{"relay":3,"on":false}]}`
## MQTT API
wled/deviceMAC/relay/0/command on|off|toggle
wled/deviceMAC/relay/1/command on|off|toggle
When relay is switched it will publish a message:
wled/deviceMAC/relay/0 on|off
## Usermod installation
1. Register the usermod by adding `#include "../usermods/multi_relay/usermod_multi_relay.h"` at the top and `usermods.add(new MultiRelay());` at the bottom of `usermods_list.cpp`.
or
2. Use `#define USERMOD_MULTI_RELAY` in wled.h or `-D USERMOD_MULTI_RELAY`in your platformio.ini
You can override the default maximum number (4) of relays by defining MULTI_RELAY_MAX_RELAYS.
Example **usermods_list.cpp**:
```cpp
#include "wled.h"
/*
* Register your v2 usermods here!
* (for v1 usermods using just usermod.cpp, you can ignore this file)
*/
/*
* Add/uncomment your usermod filename here (and once more below)
* || || ||
* \/ \/ \/
*/
//#include "usermod_v2_example.h"
//#include "usermod_temperature.h"
#include "../usermods/usermod_multi_relay.h"
void registerUsermods()
{
/*
* Add your usermod class name here
* || || ||
* \/ \/ \/
*/
//usermods.add(new MyExampleUsermod());
//usermods.add(new UsermodTemperature());
usermods.add(new MultiRelay());
}
```
## Configuration
Usermod can be configured in Usermods settings page.
If there is no MultiRelay section, just save current configuration and re-open Usermods settings page.
Have fun - @blazoncek
## Change log
2021-04
* First implementation.