Device suggestions for controlling models

Wireless & IoT
1

Hi,

I want to develop a remote control for some models I have and want to make the plans available to others who use the same stuff. I haven’t done anything with the wireless comms stuff before and was wondering what would be best.

I want to control a bunch of devices from one remote but want to be able to have multiple setups for this so I can control my models but someone else can control theirs in the same room but not have conflicts. Sort of like remote controlled cars etc change the crystal for the channel but with more channels. I’d also like to use something as small as possible on the receiver end. Distance isn’t too much of an issue and it’s all in one room.

So I guess it’s a point to multipoint setup and being able to run several setups at the same time without conflict or cross talk.

As for what is input to or output from the wireless modules doesn’t matter as I’ll get the rest to work around the wireless module as that’s the key component for me.

Thanks,

Peter

2

I’d use XBee series 1, 802.15.4 mode, peer to peer networking. This is where any node X addresses a packet to any node Y. No coordinator.

You may choose that all nodes send to one single node, by agreement.

The destination address in this 802.15.4 firmware peer to peer mode is, in the XBee, setting the MAC address using the DH:DL commands in AT mode or API mode. The receiving node can determine MAC address of the sending node if the API mode is used, otherwise the sending unit can put its ID in the data content of the message.

This is two-way data. All the protocols are built in. You code a microprocessor to talk to the XBee on a serial port, and manage the models’ motors and systems. One node can be immobile and connect to a keyboard/display or to a PC via USB or serial.

3

Sounds like the go. Thanks for the info!