Hi, I am making wireless rainwater tank meter with relay. Will use a uno with temp sensor, relay driver and rf board talking to a mega with tft display and rf board. Only aspect I am not sure about is how to send 3 variables (temp, humidity, level) over rf from uno to mega and how to send a flag f…

RF Modules

INTP August 25, 2016, 1:12pm 15

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