How to choose components for using Arduino with sensors?
Harold.chaeso 2024-01-11 14:26:22 178 Views2 Replies 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?
Harold.chaeso 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
Yeez_B 
