Images of homebrew ppm/ph meter with serial and usb for loggin and setup. More details of the project itself can be found here. (clicky!)
This is the insides, it uses a 18F4550 microcontroller. Coulda made it prettier. :/
pH/PPM Meter insides 1
Submitted by isabella on Wed, 2007-09-12 13:18. | PPM/PH Meter | « first ‹previous |9 of 12| next› last » |
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