!!!OLD VERSION FOR IoTv3!!!
1. Connect several sensors to the pin in parallel (pin 2 is immediately tightened and the resistor is not needed, but do not turn on the wi-fi indicator in the web interface -the same pin is used)
2. Create the required number of sensors in the web interface
3. If there are three sensors, for example, then in the line of the first sensor in the web interface, you need to write index[0], the second index[1], the third index[2], etc.
In the latest firmware versions, you can connect multiple ds18b20s
1. Create the required number of sensors in the web interface
2. In the same place, change the pin numbers to which the sensors are connected
DO not forget about the pull-up to +3.3 volts-resistor 4.7-1 kohm.(depends on the length of the line ,the longer it is, the lower the resistance) It is better to power the DS18B20 from 5V.Chinese sensors do not work from parasitic power supply(with rare exceptions)