i already built a greenhouse by using the Arduino mega. Is their any way to receive the data (TEMP,HUMI,SOIL MOSIUTRE) from the system to a smartphone ?

Green house

Grumpy_Mike June 14, 2018, 10:23pm 6

but which wilf-shield will be the best for doing this task

I don’t think there is any difference between shields in this respect.

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