TMRh20
commented
5 years ago "If all the nodes are woken up simultaneously and send data at the same instant of time, what will happen?"
Assuming you are using RF24Network, and all nodes wake up at the same time and send data at the same instant, the data will collide, and nothing much will happen.
"For example if i wake up the second node 100ms after the first node, will that help? "
Yes.
"To what extent will i be able to reduce this time gap, since i am looking to reduce the ON time of the slave nodes because power consumption is critical? "
You would have to experiment to find the smallest time gap, I am not sure.
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On Sun, Feb 10, 2019 at 11:15 PM Zuputmer notifications@github.com wrote:
Hey, i have a couple of questions and i would be grateful if you could answer them.
Assume that I have a mesh with 100 slave nodes. Initially, all the nodes are turned completely off ( AVR in PWR_DOWN and nrf turned off with a transistor ). The nodes are set to wake in predetermined intervals of time via the INT0 ext interrupt through an RTC. If all the nodes are woken up simultaneously and send data at the same instant of time, what will happen? Will there be a collision? Will the network automatically resolve the collisions? WIll the master be able to receive the data sent by all the nodes at the same instant?
If not, i also have the option to wake up nodes in any order with any amount of time gap between them. For example if i wake up the second node 100ms after the first node, will that help? To what extent will i be able to reduce this time gap, since i am looking to reduce the ON time of the slave nodes because power consumption is critical?
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Zuputmer
Hey, i have a couple of questions and i would be grateful if you could answer them.
Assume that I have a mesh with 100 slave nodes. Initially, all the nodes are turned completely off ( AVR in PWR_DOWN and nrf turned off with a transistor ). The nodes are set to wake in predetermined intervals of time via the INT0 ext interrupt through an RTC. If all the nodes are woken up simultaneously and send data at the same instant of time, what will happen? Will there be a collision? Will the network automatically resolve the collisions? WIll the master be able to receive the data sent by all the nodes at the same instant?
If not, i also have the option to wake up nodes in any order with any amount of time gap between them. For example if i wake up the second node 100ms after the first node, will that help? To what extent will i be able to reduce this time gap, since i am looking to reduce the ON time of the slave nodes because power consumption is critical?
Also, can this line - "#define MESH_MAX_ADDRESSES 255" in RF24Mesh_config.h- can this be increased? and what is the maximum limit?
Thanks in advance.