How to choose components for using Arduino with sensors?
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I have some experience with Arduino but consider myself a beginner. I want to use pH and EC sensors with Arduino Uno or Mega, but I'm not sure what to purchase.
https://www.dfrobot.com/product-2565.html
https://www.dfrobot.com/product-2069.html
Do I only need to buy these two products, or are there additional components I should consider?
Thank you for your response.
There are two types of pH sensors, and the pro model seems much more expensive. I plan to use it in a fish tank, so under these conditions, approximately how much longer is the lifespan of the pro model?
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You can use the IO expansion shield to simplify your wiring.
IO extension shield:
https://www.dfrobot.com/product-1009.html
Also, if you want to use EC and pH sensors in the same solution, since the EC sensor sends a high frequency electrical signal into the water when measuring the solution.
We recommend that you use two analog isolators to ensure stable pH sensor measurements.
Analog signal isolator:
https://www.dfrobot.com/product-1621.html
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