How do I send a payload in Mqtt

[fredericf73]

Hi All

I'm new to zigbee2mqtt and using it in Homeseer

I have a device that i need to send a payload to it ? but i don't know how to achieve it

referencing someone information
#14424 (comment)

Just change the payload sent in MQTT.

🔊 with sound but no strobe:

{"warning": {"duration": 1, "mode": "emergency", "level": "low", "strobe": false, "strobe_duty_cycle": 5}}

🚨with strobe but no sound:

{"warning": {"duration": 1, "mode": "off", "level": "low", "strobe": true, "strobe_duty_cycle": 5}}

the variables of duration and strobe_duty_cycle will be useful to adjust the effect. The duty cycle determines amount of time the light is on or off out of a second.

"10" is on the entire duration.
"8" is on for 0.8 seconds and off for 0.2s.

"5" will be on for 50% of the time and off for 50% of the time. Extend the duration and you have a steady on/off pulsing light.

{"warning": {"duration": 8, "mode": "off", "level": "low", "strobe": true, "strobe_duty_cycle": 5}}

Shorten the duration to the minimum (1s) and lower the strobe_duty_cycle to "1" and you get a nice blink that is 100ms long.

{"warning": {"duration": 1, "mode": "off", "level": "low", "strobe": true, "strobe_duty_cycle": 1}}