Steve Haanokay saw a paper on using a hacked USB cable for conductivity prob. Going to try this see if I can get it to work. This would drop cost of adding conductivity to your camera from $215 to $60. Hopefully this works...
Lower cost conductivity prob hack
A project log for PiCTDCL
Low cost underwater drop camera with lights, temp, pressure, and conductivity sensor
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Well the control module I got from Amazon is 2 years old from firmware version and isn't working right so it's going back. Time to order another one. What a PAIN
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