Hello, I have an issue regarding the Sunken solar water sensor. This sensor can measure water level and temperature in the range of 0 - 100 degrees Celsius and transmits the data to the controller using only two wires, red and yellow. This suggests that the sensor decodes the data transmitted along with the power. I have been searching for the datasheet and documentation related to this sensor but have not found any. I hope to find an answer through this forum so that I can replace the original Sunken control unit with a custom control unit that I have designed.

 

Measure the voltage levels on the red and yellow wires during normal operation. This will give clues about operating voltage and signal levels.

 

Hi,
https://www.sanken.co.id/127/produk/swh-pr100lp.html

Good luck...............

 

A single sensor measuring both level and temperature??? And transmitting that information over a single pair of wires??? What sort of use does the controller make of this information???
More seriously, how can you design a replacement controller without knowing the nature of the input signal??? What do you already know about the signal from the present sensor???

 

Temperature could be a Dallas Semiconductor one-wire protocol.

 

Hi,
https://www.sanken.co.id/127/produk/swh-pr100lp.html

Good luck...............

The voice part of the presentation is very rapid speaking in a language I do not understand. ANDit does not appear to provide any useful technical information.

If you are going to design a different controller then it makes much more sense to select a temperature sensor and a level sensor of your own choosing so that you will not need to decode whatever protocol is used to send both strings of information over a single pair of wires.

 

@ MisterBill2,
I was just trying to help.
I suspect the video was from the Far East. It was as close as I could get to Russia.
It would be nice if members put their country in, when they join the forum.

 

@ MisterBill2,
I was just trying to help.
I suspect the video was from the Far East. It was as close as I could get to Russia.
It would be nice if members put their country in, when they join the forum.

Certainly more information would be good, because there are places where resources are simply very expensive, or not available at all.
I also wish that people would be more truthful in their descriptions.

 

One more thing: You need to correct the spelling in the title:
It is a SANKEN sensor, not a sunken sensor. That may limit the number who view the thread.