08-06-2016, 05:20
(06-06-2016, 04:54)spudstrawb Wrote: When you talk about "direct access to the sensor output", what is required? With the connection to my PC, I wrote a little script in AutoIt which talks to the depth gauge, takes the 20 character string and strips away everything that isn't part of the depth value. Then it calculates the water tank level as a percentage and reports the depth and % values. I got the gauge from http://www.electrosense.com.au/liquid-level.htm but mine is hardwired via the serial cable, rather than being the wireless version (hardwired was cheaper).
Supposing your sensor is one of these:
The sensor consists of a pair of absolute pressure transducers, one immersed in water and the other exposed to the atmosphere above the surface of the water. The differential pressure enables water level to be computed. with an output of 0-5V DC proportional to depth, or as a serial digital data output in ASCII form
What I want to mean with "direct access to the sensor output", is having access to the 0-5V DC signal. If you have access to it, with some changes in the software, you can use for it, the ADC pin used by the solar sensor.