Hi blinkers, sorry for my english!
I have a problem with my arduino project, i do a sketch with a ds120bs probe and i want a notify from blynk at 8.15 and 18.15 if the temperature is higher to 30°!!
I try and try but i am not able!
My problem is notify only at two time not always!
Thank you
Don’t poll your DS18B20 sensor once every second. You will most likely get disconnected. I’ve written about this numerous times, use the search function!
Might have to take back that statement!
Can’t find my source where I read it once nor ca I find the corresponding info in the datasheet…
There is a 50k write limit. However it seems that you only write to eeprom if you change parameters like temp high low warning and configurations.
I remember reading the statement above when someone else was trying to read a ds18b20 very frequently. Something about it storing the previous read.
The 50k write limit is MIN, no MAX is specified. I know people that have had these sensors running for years without problem, so the MAX value is probably much higher.
Being the self proclaimed Sensors Guy - It might have been in one of my previous posts
I tried to explain it in another post:
Or as stated in the datasheet:
To initiate a temperature measurement and A-to-D conversion, the master must issue a Convert T [44h] command. Following the conversion, the resulting thermal data is stored in the 2-byte temperature register in the scratchpad memory /.../
A separate command is then sent to the sensor asking it to reply with the value of its scratchpad. A quite sophisticated little sensor I think.