I have an M590E GSM kit connect to an Arduino UNO and I'm able to light an LED by sending an SMS. I can also connect a button to the UNO which makes the M590E send me an SMS when the button is pressed. I would like to create a wireless network of 5 sensors (binary switch), which would send a signal…

433Mhz or nRF24L01 sensor network triggering GSM590E master to send SMS?

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