How long were we released from the gravity of the Earth? This device measures how many seconds we are weightlessness state.
Project showcase by hminowa
Goodbye calibration! Digitization of pH test paper! This is a pH meter that reads the color of the pH test paper.
How to connect multiple Atlas sensors to a single Arduino serial port.
by Atlas Scientific
Calibrating Atlas Scientific's EZO pH sensor using Arduino Uno.
How to make a benchtop pH meter with an Arduino Uno and the Gravity analog pH sensor from Atlas Scientific.
Project tutorial by Atlas Scientific
Thanks for your comment. I think sooooo, too! You are very knowledgeable.
Digital pH meters are accurate, but sometimes that accuracy is not needed.
OK. I shared this code. Please use it carefully!
Thanks for your comment.
I measured RGB for each color of pH test paper.
I plotted the RGB values and pH values, I created three functions. (Please refer figure "RGB values and pH values".)
The pH values of the three functions are averaged.
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