Controlling 12 RX arduino with one Tx arduino

Projects General Guidance
1

I am new to Arduino and I am learning as I go, now I have a project for college which involves one Tx Arduino communicating with 12 Rx arduinos wirelessly. Each Rx will be controlling a stepper motor, also the Tx needs to have a remote control with at least 6 programmed modes and one manual mode, where the operator can basically do what ever he or she wants. What I need to do is tell the stepper motor to turn 90 degrees for 3 seconds and then back to 0 degrees. I would very much appreciate any help on which type of communication I will be needing for this project, ( which I forgot to mention that the distance will vary from 3 yards to probably 100 yards ) and also, will this has anything to do with the master and slave code that is out in the web? or is there an easier way to achieve this? Like I said I will appreciate any help on this. Thank you.

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2

Then just go and find a transceiver (or transmitter and receiver pair) that will match what you want. A NRF24L01 is a pretty standard transmitter to use.

After that, start layout out all the requirements and start by breaking up all the tasks into small bits and start designing (not coding) the overall structure of the program.

3

Hi,
Nrf24L01 based transceiver boards are widely used. They come in low and high power versions. To start learning about this see the ArduinoInfo.Info site HERE:

4

You should have no trouble communicating with your Arduinos using nRF24L01+ transceivers - and they are cheap.

I got my nRF24s working with the Tutorial that @terryking228 linked to.

I suggest you use the TMRh20 version of the RF24 library - it solves some problems from the ManiacBug version

The pair of programs in this link may be useful. They are derived from a model train control system and can be adapted to work with multiple slaves.

DO NOT expect to send individual step commands from the master - you must leave the fine detail to the slave and just send high level instructions from the master - the number of steps and the speed for a particular move.

...R

5

Ok, thank you. I'll start looking into those transceivers.