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ph meter with pic to open and close a 12v solonoid valve

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mikkywhyte

mikkywhyte

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USB_PH_Meter.jpg

Hi guys I found this USB powered Ph meter on line. What I want, is to put a pic16f877 in it to replace the ADS7835E. I want the circuit to open a valve of 12v, when is below 7ph which is 0mv and close it when ph is at 7ph.
So I dont know if the pic will fit in there or leave the ADS and just addd the pic to the circuit..
 

Hi,


Sounds like you are wanting to make a ph controller for an aquarium ..? if so there is my proven project you can download from here.

**broken link removed**
 

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