@Ranjib So I was messing around with the temp probe and finally got my rpi to recognize that there was a sensor attached. I was able to `get it to read room temperature at 68 degrees, held it my hand and it read 98 degrees and put it in cold water and it read 48 degrees. I was able to get an outlet assigned to turn the heater off when the temp hit 80 degrees and turn it back on when the temp hit 77 degrees.
Then I hooked everything back up to the tank, put the probe in the sump and the probe reading started climbing and didn't stop till it registered 262.2866 degrees. Now I know I'm not boiling water in my tank and temperature according to my thermometer is at 79 degrees.
I am still thinking that I got a bad probe and need to replace it or is there something else I'm missing?
On another sad note the rpi I was using for my dosing pumps had a catastrophic failure and is shot. I had it hooked up to a 5volt power source and was making sure all the settings in the preferences where correct and vnc was working properly so I could get it ready to be mounted in the main enclosure and it started getting very hot. Hot to the point of not being able to touch the board. Now I can't even get it to boot. This was after it started doing some strange stuff this morning. It randomly changed the resolution for the monitor to the point of being useless so I restored the system with the sd card, reinstalled reef-pi and it worked fine till it started the heating up. All this stuff happened when the proto hat with the dosing pump circuit was removed and after I moved the temp probe to my other rpi for final testing.
. That’s it. Test out the output of l293d with multimeter once you complete your circuit. The rpi pwm output should vary from 0-3.3 , which is input for l293d. L293d should generate 0-12v output. Does that make sense ?
