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Best wireless communication device for controlling 200 microcontrollers? Answered

Heyo,

I am looking for suggestions of wireless communication devices for microcontrollers (such as Arduino) to other microcontrollers(such as Arduinos). The distance will be about 100 meters, and I am looking for the most efficient and quickest way to send information from 1 transmitter microcontroller to about 200 receiver microcontrollers. I've browsed around and have some ideas of devices that can be used. I just wanted to ask other's ideas on the matter before I move on to testing my own ideas.

Thanks!

Tags:arduino

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rickharris
rickharris

4 years ago

Personally over such a small distance I would use a wired link.

SPI or I2I are single wire interfaces supported by many or most of the current microprocessors.

Xbee or similliar seem to be very reliable Don't know about 1 to 200 though.

http://www.picaxestore.com/index.php/en_gb/picaxe/...

Gives several options for the Picaxe controller.

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bigjohn412
bigjohn412

Answer 4 years ago

The reason I need wireless is because each node will be moving around. So wires are a bad idea lol. And yea I've looked at wifi solutions as a possible way, Wifi does rack up the price a bit also which is a downside. Not sure if wifi would be the best in an open feild either. Have not tested it though. Thanks for the suggestion!

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rickharris
rickharris

Answer 4 years ago

Reading between the lines here are you putting tracking on animals?

It helps a lot if you tell the whole story.

http://www.bbc.co.uk/programmes/b084ztrw

This program did that with sheep in episode 2 the Farmers union are trying to get it rolled out all over the UK.

You have to consider with a mobile target that any optical solution is likely to be shielded at some point perhaps for a long time, wireless is pretty much the only real way. Everything costs. a 433Mhz system will only be £10 or so.

Reliability costs more. Range costs more. Small costs more.

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iceng
iceng

4 years ago

Ten to15 modulated polarized IR LEDs would be low cost and with smart address codes could easily handle 200 remotes despite sun movement...

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bigjohn412
bigjohn412

4 years ago

I was looking at the RFM69HCW and similar models that use the 900/915Mhz band. The only issue I have had is the speed of the information being sent out. This is the only board i have field tested in a smaller number of receivers.

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steveastrouk
steveastrouk

Answer 4 years ago

I'd forgotten LoRa. I think that's self organising too, so yeah, could be a good choice. Depends on bandwidth requirements.