All,
I have a small PV setup (nominal 18V thru 5A/12V regulator to car/leisure batteries) that I would like to monitor the state-of-charge on to see how my batteries are doing. I want the data to be over a 1-wire data bus to fit with my other sensors.
EL34 published a thread about using a 1-wire DS2438 chip with a shunt but this seems to only work well for unidirectional flows. I thought perhaps then I could make one using a PIC chip with some 1-wire software to signal the bus.
Has anyone had any experience of doing this and are there any tested circuits/software out there? Obviously I am looking to do this on the cheap but would pay for something pre-made if it was priced right.
thanks all
Dan
I have a small PV setup (nominal 18V thru 5A/12V regulator to car/leisure batteries) that I would like to monitor the state-of-charge on to see how my batteries are doing. I want the data to be over a 1-wire data bus to fit with my other sensors.
EL34 published a thread about using a 1-wire DS2438 chip with a shunt but this seems to only work well for unidirectional flows. I thought perhaps then I could make one using a PIC chip with some 1-wire software to signal the bus.
Has anyone had any experience of doing this and are there any tested circuits/software out there? Obviously I am looking to do this on the cheap but would pay for something pre-made if it was priced right.
thanks all
Dan
