You may have wondered why I’m asking this because everywhere on the Internet one can find how to connect a 1wire device. But here is my problem.
You have to connect it with a 4.7k pull-up resistor between your data pin and +5V. That’s how it has to be done.
But I can’t do it like this because I’m not really trying to set this up by my self I’m actually trying to read out information of an EEPROM which is already set up on a board but in this instance with a 4.7k pull-down resistor between Ground and the Data Pin.
So I have two connections to connect with my arduino. Data and Ground with the resistor between it. But I have no idea how to do it like this. The official way with a pull-up resistor is pretty straight forward but I have no idea what one can do with a setup like this.
I have heard you may need a 12V source to do it? But how can I set this up without destroying my arduino or the EEPROM?
BTW the EEPROM is a MAXIM DS2433: http://datasheets.maximintegrated.com/en/ds/DS2433.pdf
And here is the current setup which I can’t change, but I can attach everything I want onto that of course: DS2433 with Pulldown - CircuitLab
I’m totally lost right now so any help on how to get this thing attached to my arduino would be great.
Thanks in advance.
And here is the actual Board without the EEPROM on it: