Can we have multiple 1-wire devices on single pin?

[towlerg]

You do realize 750ms is three quarters of a second? Fan speed will be very wobbly.

[CuriousOne]

Fan won't stop in absence of PWM signal. most fans, without PWM signal applied, will default to 30-50% RPM.

[scrwld]

hello, you can read several ds18b20 sensors and execute the part of the control that you want to carry out, see the attached file the routine I use in a device for the control of air conditioning and lighting with serial communication.LEER_DS18B20.txt

[CuriousOne]

And a side question, can we use 1-wire protocol to communicate between 2 PICs?

[Ioannis]

The idea is to have the PIC as a master device and the PIC to request a communication.

So, with the available commands, it is not possible to make a PIC react as a slave 1-wire device.

You have to write your own code for that.

Ioannis