As the topic title says.
I have installed 2 x 18b20 one wire sensors (on another location and new board mega2560) , used a pull op resistor as described.
Both sensors work correct but once in a while i get a reading for a short second that says -127.00 degrees.
I noticed this at my own home with 12 sensors also, thought it was caused because of the long daisychained link or something.
I am logging at home with a simple logger for graphs but i noticed this that it ruined my graphs.
Normally temp hoovers around 20 deg, the graph is wit a 20 degrees scale, but when the -127 comes by, the whole graph is not readable anymore and tiny.
What can be the cause of this, i am probably not the only one experiencing this ?
Thanks
I have installed 2 x 18b20 one wire sensors (on another location and new board mega2560) , used a pull op resistor as described.
Both sensors work correct but once in a while i get a reading for a short second that says -127.00 degrees.
I noticed this at my own home with 12 sensors also, thought it was caused because of the long daisychained link or something.
I am logging at home with a simple logger for graphs but i noticed this that it ruined my graphs.
Normally temp hoovers around 20 deg, the graph is wit a 20 degrees scale, but when the -127 comes by, the whole graph is not readable anymore and tiny.
What can be the cause of this, i am probably not the only one experiencing this ?
Thanks
Comment