Sonoff ZB Bridge Pro - Support for SNZB-04P, buzzer, I2C

[valdus2]

This is my first journey in Zigbee and I have some questions.

I have flashed succesfully a Sonoff ZB Bridge Pro with latest dev and "SonoffZBPro_coord_20240710.hex" using these options:
SetOption83 1
SetOption89 1
SetOption100 1
SetOption112 1

1. I have connected a SNZB-04P and in mqtt I get the following messages:

tele/ZBBridgePro/trap1/SENSOR = {"trap1":{"Device":"0x5489","Name":"trap1","ZoneStatus":1,"Contact":1,"Endpoint":1,"LinkQuality":160}}
tele/ZBBridgePro/trap1/SENSOR = {"trap1":{"Device":"0x5489","Name":"trap1","ZoneStatus":0,"Contact":0,"Endpoint":1,"LinkQuality":160}}

 

But I can't see any On/Off message in WebUI, all I can see is this:
 

 

2. Giving a single command for buzzer such as Buzzer 2,3,4, all I can hear is something like my nail hitting slightly the table...
   Is this normal?
   Does the buzzer actually works?

 

3. If I want to connect I2C devices (with own compiled firmware), are these the correct pins that I should soldered the sensors?
   
    
   Thank you in advance.

[sfromis]

1. What you show has no on/off status at all, and you should not expect those web UI hints to be comprehensive about what could be said about device messages. The web UI is not "the place" to see what's going on.
2. The buzzer works better if you first set it to PWM mode, command SetOption111 / BuzzerPWM
3. There is no "correct way" or "should" for adding hardware to such devices, it is basically up to experimenting if it "happens" to work. I'd not be surprised if the experiment succeeds.

[valdus2]

• What you show has no on/off status at all, and you should not expect those web UI hints to be comprehensive about what could be said about device messages. The web UI is not "the place" to see what's going on.

I've seen photos where there is ON/Off in UI (I don't know from what devices) that's why I asked if this SNZB-04P is supported.

• The buzzer works better if you first set it to PWM mode, command SetOption111 / BuzzerPWM

I just used the template from the autoconf which has it as a buzzer....I'm going to try what you said.
Edit: I just tried it and it works. Thank you sfromis.

• There is no "correct way" or "should" for adding hardware to such devices, it is basically up to experimenting if it "happens" to work. I'd not be surprised if the experiment succeeds.

No I was not talking hypothetically about ways to connect other devices, but literally, if these are the pins that are exposed and I can use them to do the tests.

[sfromis]

As the SNZB-04P is not "being" (or reporting) on/off, such an indicator would not apply, that's typically when it is a device you can turn on/off, like a relay.

As already suggested, you are free to experiment with pins, but as this is outside of what the device is designed for, and not a common use case, there is no "established base" of clear answers. Again, my guess is good chances of it working (and not much risk of damages), as long as it is not drawing "too much" power.

[valdus2]

OK, time for testing. Thank you sfromis.