Use this forum to chat about hardware specific topics for the ESP8266 (peripherals, memory, clocks, JTAG, programming)

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By AcmeUK
#92656
All devices will be turn ON at same time and will send data with 90 seconds delay

But if the devces are not in the same location how do you get them all to wake up at the same time?
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By sairfan06
#92657 They are in same location, they are working on timer, as worst case i assume that they can communicate at same time, thought mostly it will not happen.

if you think ESP now is not good approach can you please advise what else could be? please note that sensor nodes are battery operated we can use option with least battery consumption.