The documentation stated that the smart MAC D105 contact 4 allows to connect 5 temperature sensors type DS18x20 or one
temperature and humidity sensor DHT22

How to do it. As far as I can see on sensors-e.g. Sealed masterkitovskij temperature sensor DS18B20

• 1-wire interface
  
• Red wire U Pete.
• Black wire GND
• Yellow wire Data

but it is not clear where any wires, and what to do for example with second or third sensor.

Can you create a widget where the data in the form of the table?

I just configured the device.

I enabled mqtt server config wit username and password.

Unfortunately in mqtt logs I cannot see the username from the smart-mac but just:

1557525454: New connection from 10.x.xx.xxx on port 1883.
1557525454: Sending CONNACK to 10x.xx.xxx (0, 5)
1557525454: Socket error on client , disconnecting.

I'm a beginner. Can i get some advice