Hello all,
i have an arduino project to do.
i'll use 45 one-wire sensors to collect datas (DS18B20).
How many sensors can i connect to one input? if i use smaller pull up resistors, may i be able to connect all of them in just 1 input?
just ensure the current draw doesn't exceed the pin. or if it does maybe add a protective circuit to the arduino as not to fry it. your gonna need a fair amount of power for that many.
What is it your trying to achive whats your project
The sensors don't all have to be on one pin. You could even have 5 separate buses with 9 sensors on each.
Pete
a perfect page - 1-Wire | Elaborated Networks GmbH - describing ins and outs of one wire (Google translate can help